Create branch to keep WIP patch for modular build.

[SVN r85883]

.github/workflows/ci.yml

@@ -1,478 +0,0 @@
-# Copyright 2021-2022 Andrey Semashev
-#
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
-
-name: CI
-
-on:
-  pull_request:
-  push:
-    branches:
-      - master
-      - develop
-      - feature/**
-
-concurrency:
-  group: ${{format('{0}:{1}', github.repository, github.ref)}}
-  cancel-in-progress: true
-
-env:
-  GIT_FETCH_JOBS: 8
-  NET_RETRY_COUNT: 5
-  DEFAULT_BUILD_VARIANT: debug,release
-
-jobs:
-  posix:
-    defaults:
-      run:
-        shell: bash
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          # Linux, gcc
-          - toolset: gcc-4.4
-            cxxstd: "98,0x"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.4
-            sources:
-              - "ppa:ubuntu-toolchain-r/test"
-          - toolset: gcc-4.6
-            cxxstd: "03,0x"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.6
-            sources:
-              - "ppa:ubuntu-toolchain-r/test"
-          - toolset: gcc-4.7
-            cxxstd: "03,11"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.7
-          - toolset: gcc-4.8
-            cxxstd: "03,11"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - g++-4.8
-          - toolset: gcc-4.9
-            cxxstd: "03,11"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.9
-          - toolset: gcc-5
-            cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-5
-          - toolset: gcc-6
-            cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - g++-6
-          - toolset: gcc-7
-            cxxstd: "03,11,14,17"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - g++-7
-          - toolset: gcc-8
-            cxxstd: "03,11,14,17,2a"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - g++-8
-          - toolset: gcc-9
-            cxxstd: "03,11,14,17,2a"
-            os: ubuntu-20.04
-            install:
-              - g++-9
-          - toolset: gcc-10
-            cxxstd: "03,11,14,17,20"
-            os: ubuntu-20.04
-            install:
-              - g++-10
-          - toolset: gcc-11
-            cxxstd: "03,11,14,17,20,23"
-            os: ubuntu-22.04
-            install:
-              - g++-11
-          - toolset: gcc-12
-            cxxstd: "03,11,14,17,20,23"
-            os: ubuntu-22.04
-            install:
-              - g++-12
-          - name: UBSAN
-            toolset: gcc-11
-            cxxstd: "03,11,14,17,20,23"
-            ubsan: 1
-            build_variant: debug
-            os: ubuntu-22.04
-            install:
-              - g++-11
-
-          # Linux, clang
-          - toolset: clang
-            compiler: clang++-3.5
-            cxxstd: "03,11"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - clang-3.5
-          - toolset: clang
-            compiler: clang++-3.6
-            cxxstd: "03,11,14"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - clang-3.6
-          - toolset: clang
-            compiler: clang++-3.7
-            cxxstd: "03,11,14"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - clang-3.7
-          - toolset: clang
-            compiler: clang++-3.8
-            cxxstd: "03,11,14"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - clang-3.8
-          - toolset: clang
-            compiler: clang++-3.9
-            cxxstd: "03,11,14"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-3.9
-          - toolset: clang
-            compiler: clang++-4.0
-            cxxstd: "03,11,14"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-4.0
-          - toolset: clang
-            compiler: clang++-5.0
-            cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-5.0
-          - toolset: clang
-            compiler: clang++-6.0
-            cxxstd: "03,11,14,17"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-6.0
-          - toolset: clang
-            compiler: clang++-7
-            cxxstd: "03,11,14,17"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-7
-          # Note: clang-8 does not fully support C++20, so it is not compatible with libstdc++-8 in this mode
-          - toolset: clang
-            compiler: clang++-8
-            cxxstd: "03,11,14,17,2a"
-            os: ubuntu-latest
-            container: ubuntu:18.04
-            install:
-              - clang-8
-              - g++-7
-            gcc_toolchain: 7
-          - toolset: clang
-            compiler: clang++-9
-            cxxstd: "03,11,14,17,2a"
-            os: ubuntu-20.04
-            install:
-              - clang-9
-          - toolset: clang
-            compiler: clang++-10
-            cxxstd: "03,11,14,17,20"
-            os: ubuntu-20.04
-            install:
-              - clang-10
-          - toolset: clang
-            compiler: clang++-11
-            cxxstd: "03,11,14,17,20"
-            os: ubuntu-22.04
-            install:
-              - clang-11
-          - toolset: clang
-            compiler: clang++-12
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-12
-          - toolset: clang
-            compiler: clang++-13
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-13
-          - toolset: clang
-            compiler: clang++-14
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-14
-          - toolset: clang
-            compiler: clang++-15
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-15
-          - toolset: clang
-            compiler: clang++-16
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-16
-            sources:
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main"
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
-          - toolset: clang
-            compiler: clang++-16
-            cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
-            install:
-              - clang-16
-              - libc++-16-dev
-              - libc++abi-16-dev
-            sources:
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main"
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
-            cxxflags: -stdlib=libc++
-            linkflags: -stdlib=libc++
-          - name: UBSAN
-            toolset: clang
-            compiler: clang++-15
-            cxxstd: "03,11,14,17,20,2b"
-            cxxflags: -stdlib=libc++
-            linkflags: -stdlib=libc++
-            ubsan: 1
-            build_variant: debug
-            os: ubuntu-22.04
-            install:
-              - clang-15
-              - libc++-15-dev
-              - libc++abi-15-dev
-
-          - toolset: clang
-            cxxstd: "03,11,14,17,2a"
-            os: macos-11
-
-    timeout-minutes: 60
-    runs-on: ${{matrix.os}}
-    container: ${{matrix.container}}
-
-    steps:
-      - name: Setup environment
-        run: |
-            if [ -f "/etc/debian_version" ]
-            then
-                echo "DEBIAN_FRONTEND=noninteractive" >> $GITHUB_ENV
-                export DEBIAN_FRONTEND=noninteractive
-            fi
-            if [ -n "${{matrix.container}}" ]
-            then
-                echo "GHA_CONTAINER=${{matrix.container}}" >> $GITHUB_ENV
-                if [ -f "/etc/debian_version" ]
-                then
-                    apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-                    if [ "$(apt-cache search "^python-is-python3$" | wc -l)" -ne 0 ]
-                    then
-                        PYTHON_PACKAGE="python-is-python3"
-                    else
-                        PYTHON_PACKAGE="python"
-                    fi
-                    apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y sudo software-properties-common tzdata wget curl apt-transport-https ca-certificates make build-essential g++ $PYTHON_PACKAGE python3 perl git cmake
-                fi
-            fi
-            git config --global pack.threads 0
-
-      - uses: actions/checkout@v3
-
-      - name: Install packages
-        if: matrix.install
-        run: |
-            declare -a SOURCE_KEYS SOURCES
-            if [ -n "${{join(matrix.source_keys, ' ')}}" ]
-            then
-                SOURCE_KEYS=("${{join(matrix.source_keys, '" "')}}")
-            fi
-            if [ -n "${{join(matrix.sources, ' ')}}" ]
-            then
-                SOURCES=("${{join(matrix.sources, '" "')}}")
-            fi
-            for key in "${SOURCE_KEYS[@]}"
-            do
-                for i in {1..$NET_RETRY_COUNT}
-                do
-                    echo "Adding key: $key"
-                    wget -O - "$key" | sudo apt-key add - && break || sleep 2
-                done
-            done
-            if [ ${#SOURCES[@]} -gt 0 ]
-            then
-                APT_ADD_REPO_COMMON_ARGS=("-y")
-                APT_ADD_REPO_SUPPORTED_ARGS="$(apt-add-repository --help | perl -ne 'if (/^\s*-n/) { print "n"; } elsif (/^\s*-P/) { print "P"; } elsif (/^\s*-S/) { print "S"; } elsif (/^\s*-U/) { print "U"; }')"
-                if [ -n "$APT_ADD_REPO_SUPPORTED_ARGS" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*n*}" ]
-                then
-                    APT_ADD_REPO_COMMON_ARGS+=("-n")
-                fi
-                APT_ADD_REPO_HAS_SOURCE_ARGS="$([ -n "$APT_ADD_REPO_SUPPORTED_ARGS" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*P*}" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*S*}" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*U*}" ] && echo 1 || echo 0)"
-                for source in "${SOURCES[@]}"
-                do
-                    for i in {1..$NET_RETRY_COUNT}
-                    do
-                        APT_ADD_REPO_ARGS=("${APT_ADD_REPO_COMMON_ARGS[@]}")
-                        if [ $APT_ADD_REPO_HAS_SOURCE_ARGS -ne 0 ]
-                        then
-                            case "$source" in
-                            "ppa:"*)
-                                APT_ADD_REPO_ARGS+=("-P")
-                                ;;
-                            "deb "*)
-                                APT_ADD_REPO_ARGS+=("-S")
-                                ;;
-                            *)
-                                APT_ADD_REPO_ARGS+=("-U")
-                                ;;
-                            esac
-                        fi
-                        APT_ADD_REPO_ARGS+=("$source")
-                        echo "apt-add-repository ${APT_ADD_REPO_ARGS[@]}"
-                        sudo -E apt-add-repository "${APT_ADD_REPO_ARGS[@]}" && break || sleep 2
-                    done
-                done
-            fi
-            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y ${{join(matrix.install, ' ')}}
-
-      - name: Setup GCC Toolchain
-        if: matrix.gcc_toolchain
-        run: |
-            GCC_TOOLCHAIN_ROOT="$HOME/gcc-toolchain"
-            echo "GCC_TOOLCHAIN_ROOT=\"$GCC_TOOLCHAIN_ROOT\"" >> $GITHUB_ENV
-            MULTIARCH_TRIPLET="$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
-            mkdir -p "$GCC_TOOLCHAIN_ROOT"
-            ln -s /usr/include "$GCC_TOOLCHAIN_ROOT/include"
-            ln -s /usr/bin "$GCC_TOOLCHAIN_ROOT/bin"
-            mkdir -p "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET"
-            ln -s "/usr/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}" "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}"
-
-      - name: Setup Boost
-        run: |
-            echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
-            LIBRARY=${GITHUB_REPOSITORY#*/}
-            echo LIBRARY: $LIBRARY
-            echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
-            echo GITHUB_BASE_REF: $GITHUB_BASE_REF
-            echo GITHUB_REF: $GITHUB_REF
-            REF=${GITHUB_BASE_REF:-$GITHUB_REF}
-            REF=${REF#refs/heads/}
-            echo REF: $REF
-            BOOST_BRANCH=develop && [ "$REF" = "master" ] && BOOST_BRANCH=master || true
-            echo BOOST_BRANCH: $BOOST_BRANCH
-            BUILD_JOBS=$((nproc || sysctl -n hw.ncpu) 2> /dev/null)
-            echo "BUILD_JOBS=$BUILD_JOBS" >> $GITHUB_ENV
-            echo "CMAKE_BUILD_PARALLEL_LEVEL=$BUILD_JOBS" >> $GITHUB_ENV
-            DEPINST_ARGS=()
-            GIT_VERSION="$(git --version | sed -e 's/git version //')"
-            GIT_HAS_JOBS=1
-            if [ -f "/etc/debian_version" ]
-            then
-                if $(dpkg --compare-versions "$GIT_VERSION" lt 2.8.0)
-                then
-                    GIT_HAS_JOBS=0
-                fi
-            else
-                declare -a GIT_VER=(${GIT_VERSION//./ })
-                declare -a GIT_MIN_VER=(2 8 0)
-                for ((i=0; i<${#GIT_VER[@]}; i++))
-                do
-                    if [ -z "${GIT_MIN_VER[i]}" ]
-                    then
-                        GIT_MIN_VER[i]=0
-                    fi
-                    if [ "${GIT_VER[i]}" -lt "${GIT_MIN_VER[i]}" ]
-                    then
-                        GIT_HAS_JOBS=0
-                        break
-                    fi
-                done
-            fi
-            if [ "$GIT_HAS_JOBS" -ne 0 ]
-            then
-                DEPINST_ARGS+=("--git_args" "--jobs $GIT_FETCH_JOBS")
-            fi
-            cd ..
-            git clone -b "$BOOST_BRANCH" --depth 1 "https://github.com/boostorg/boost.git" "boost-root"
-            cd boost-root
-            mkdir -p libs/$LIBRARY
-            cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
-            git submodule update --init tools/boostdep
-            DEPINST_ARGS+=("$LIBRARY")
-            python tools/boostdep/depinst/depinst.py "${DEPINST_ARGS[@]}"
-            if [ -z "${{matrix.cmake_tests}}" ]
-            then
-                ./bootstrap.sh
-                ./b2 headers
-                if [ -n "${{matrix.compiler}}" -o -n "$GCC_TOOLCHAIN_ROOT" ]
-                then
-                    echo -n "using ${{matrix.toolset}} : : ${{matrix.compiler}}" > ~/user-config.jam
-                    if [ -n "$GCC_TOOLCHAIN_ROOT" ]
-                    then
-                        echo -n " : <compileflags>\"--gcc-toolchain=$GCC_TOOLCHAIN_ROOT\" <linkflags>\"--gcc-toolchain=$GCC_TOOLCHAIN_ROOT\"" >> ~/user-config.jam
-                    fi
-                    echo " ;" >> ~/user-config.jam
-                fi
-            fi
-
-      - name: Run tests
-        if: matrix.cmake_tests == ''
-        run: |
-            cd ../boost-root
-            B2_ARGS=("-j" "$BUILD_JOBS" "toolset=${{matrix.toolset}}" "cxxstd=${{matrix.cxxstd}}")
-            if [ -n "${{matrix.build_variant}}" ]
-            then
-                B2_ARGS+=("variant=${{matrix.build_variant}}")
-            else
-                B2_ARGS+=("variant=$DEFAULT_BUILD_VARIANT")
-            fi
-            if [ -n "${{matrix.threading}}" ]
-            then
-                B2_ARGS+=("threading=${{matrix.threading}}")
-            fi
-            if [ -n "${{matrix.ubsan}}" ]
-            then
-                export UBSAN_OPTIONS="print_stacktrace=1"
-                B2_ARGS+=("cxxflags=-fsanitize=undefined -fno-sanitize-recover=undefined" "linkflags=-fsanitize=undefined -fuse-ld=gold" "define=UBSAN=1" "debug-symbols=on" "visibility=global")
-            fi
-            if [ -n "${{matrix.cxxflags}}" ]
-            then
-                B2_ARGS+=("cxxflags=${{matrix.cxxflags}}")
-            fi
-            if [ -n "${{matrix.linkflags}}" ]
-            then
-                B2_ARGS+=("linkflags=${{matrix.linkflags}}")
-            fi
-            B2_ARGS+=("libs/$LIBRARY/test")
-            ./b2 "${B2_ARGS[@]}"

CMakeLists.txt

@@ -1,24 +0,0 @@
-# Copyright 2018 Peter Dimov
-# Copyright 2018 Andrey Semashev
-# Distributed under the Boost Software License, Version 1.0.
-# See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
-
-cmake_minimum_required(VERSION 3.5...3.20)
-
-project(boost_utility VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
-
-add_library(boost_utility INTERFACE)
-add_library(Boost::utility ALIAS boost_utility)
-
-target_include_directories(boost_utility INTERFACE include)
-
-target_link_libraries(boost_utility
-    INTERFACE
-        Boost::config
-        Boost::core
-        Boost::io
-        Boost::preprocessor
-        Boost::static_assert
-        Boost::throw_exception
-        Boost::type_traits
-)

OptionalPointee.html

@@ -57,7 +57,10 @@ aliasing.
   </TR>
   <TR>
     <TD VAlign=top>Validity Test</TD>
-    <TD VAlign=top>&nbsp;<tt>bool(t)</tt></TD>
+    <TD VAlign=top>&nbsp;<tt>t</tt><br>
+     &nbsp;<tt>t != 0</tt><br>
+     &nbsp;<tt>!!t</tt>
+     </TD>
     <TD VAlign=top>&nbsp;bool </TD>
     <TD VAlign=top>If the pointee is valid returns true.<br>
       If the pointee is invalid returns false.</TD>
@@ -65,7 +68,9 @@ aliasing.
   </TR>
   <TR>
     <TD VAlign=top>Invalidity Test</TD>
-    <TD VAlign=top>&nbsp;<tt>!t</tt></TD>
+    <TD VAlign=top>&nbsp;<tt>t == 0</tt><br>
+                   &nbsp;<tt>!t</tt>
+    </TD>
     <TD VAlign=top>&nbsp;bool </TD>
     <TD VAlign=top>If the pointee is valid returns false.<br>
       If the pointee is invalid returns true.</TD>

README.md

@@ -1,26 +0,0 @@
-# ![Boost.Utility](doc/logo.png)
-
-Boost.Utility, part of collection of the [Boost C++ Libraries](https://github.com/boostorg), provides a number of smaller components, too small to be called libraries in their own right. See the documentation for the list of components.
-
-### Directories
-
-* **doc** - Documentation sources
-* **include** - Interface headers of Boost.Utility
-* **test** - Boost.Utility unit tests
-
-### More information
-
-* [Documentation](https://boost.org/libs/utility)
-* [Report bugs](https://github.com/boostorg/utility/issues/new). Be sure to mention Boost version, Boost.Utility component, platform and compiler you're using. A small compilable code sample to reproduce the problem is always good as well.
-* Submit your patches as pull requests against **develop** branch. Note that by submitting patches you agree to license your modifications under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).
-
-### Build status
-
-Branch          | GitHub Actions | AppVeyor | Test Matrix | Dependencies |
-:-------------: | -------------- | -------- | ----------- | ------------ |
-[`master`](https://github.com/boostorg/utility/tree/master) | [![GitHub Actions](https://github.com/boostorg/utility/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/utility/actions?query=branch%3Amaster) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/g09ehuy2o6aq42th/branch/master?svg=true)](https://ci.appveyor.com/project/Lastique/utility/branch/master) | [![Tests](https://img.shields.io/badge/matrix-master-brightgreen.svg)](http://www.boost.org/development/tests/master/developer/utility.html) | [![Dependencies](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/utility.html)
-[`develop`](https://github.com/boostorg/utility/tree/develop) | [![GitHub Actions](https://github.com/boostorg/utility/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/utility/actions?query=branch%3Adevelop) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/g09ehuy2o6aq42th/branch/develop?svg=true)](https://ci.appveyor.com/project/Lastique/utility/branch/develop) | [![Tests](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](http://www.boost.org/development/tests/develop/developer/utility.html) | [![Dependencies](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/utility.html)
-
-### License
-
-Distributed under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).

addressof_fn_test.cpp

@@ -0,0 +1,76 @@
+#include <boost/config.hpp>
+
+#if defined(BOOST_MSVC)
+#pragma warning(disable: 4786)  // identifier truncated in debug info
+#pragma warning(disable: 4710)  // function not inlined
+#pragma warning(disable: 4711)  // function selected for automatic inline expansion
+#pragma warning(disable: 4514)  // unreferenced inline removed
+#endif
+
+//  addressof_fn_test.cpp: addressof( f )
+//
+//  Copyright (c) 2008, 2009 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/utility/addressof.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+
+void f0()
+{
+}
+
+void f1(int)
+{
+}
+
+void f2(int, int)
+{
+}
+
+void f3(int, int, int)
+{
+}
+
+void f4(int, int, int, int)
+{
+}
+
+void f5(int, int, int, int, int)
+{
+}
+
+void f6(int, int, int, int, int, int)
+{
+}
+
+void f7(int, int, int, int, int, int, int)
+{
+}
+
+void f8(int, int, int, int, int, int, int, int)
+{
+}
+
+void f9(int, int, int, int, int, int, int, int, int)
+{
+}
+
+int main()
+{
+    BOOST_TEST( boost::addressof( f0 ) == &f0 );
+    BOOST_TEST( boost::addressof( f1 ) == &f1 );
+    BOOST_TEST( boost::addressof( f2 ) == &f2 );
+    BOOST_TEST( boost::addressof( f3 ) == &f3 );
+    BOOST_TEST( boost::addressof( f4 ) == &f4 );
+    BOOST_TEST( boost::addressof( f5 ) == &f5 );
+    BOOST_TEST( boost::addressof( f6 ) == &f6 );
+    BOOST_TEST( boost::addressof( f7 ) == &f7 );
+    BOOST_TEST( boost::addressof( f8 ) == &f8 );
+    BOOST_TEST( boost::addressof( f9 ) == &f9 );
+
+    return boost::report_errors();
+}

addressof_test.cpp

@@ -0,0 +1,94 @@
+// Copyright (C) 2002 Brad King (brad.king@kitware.com) 
+//                    Douglas Gregor (gregod@cs.rpi.edu)
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// For more information, see http://www.boost.org
+
+
+#include <boost/utility/addressof.hpp>
+
+#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+#pragma warning(push, 3)
+#endif
+
+#include <iostream>
+
+#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+#pragma warning(pop)
+#endif
+
+#include <boost/detail/lightweight_test.hpp>
+
+template<class T> void scalar_test( T * = 0 )
+{
+    T* px = new T();
+
+    T& x = *px;
+    BOOST_TEST( boost::addressof(x) == px );
+
+    const T& cx = *px;
+    const T* pcx = boost::addressof(cx);
+    BOOST_TEST( pcx == px );
+
+    volatile T& vx = *px;
+    volatile T* pvx = boost::addressof(vx);
+    BOOST_TEST( pvx == px );
+
+    const volatile T& cvx = *px;
+    const volatile T* pcvx = boost::addressof(cvx);
+    BOOST_TEST( pcvx == px );
+
+    delete px;
+}
+
+template<class T> void array_test( T * = 0 )
+{
+    T nrg[3] = {1,2,3};
+    T (*pnrg)[3] = &nrg;
+    BOOST_TEST( boost::addressof(nrg) == pnrg );
+
+    T const cnrg[3] = {1,2,3};
+    T const (*pcnrg)[3] = &cnrg;
+    BOOST_TEST( boost::addressof(cnrg) == pcnrg );
+}
+
+struct addressable
+{
+    addressable( int = 0 )
+    {
+    }
+};
+
+struct useless_type {};
+
+class nonaddressable {
+public:
+
+    nonaddressable( int = 0 )
+    {
+    }
+
+    void dummy(); // Silence GCC warning: all member of class are private
+
+private:
+
+    useless_type operator&() const;
+};
+
+int main()
+{
+    scalar_test<char>();
+    scalar_test<int>();
+    scalar_test<addressable>();
+    scalar_test<nonaddressable>();
+
+    array_test<char>();
+    array_test<int>();
+    array_test<addressable>();
+    array_test<nonaddressable>();
+
+    return boost::report_errors();
+}

addressof_test2.cpp

@@ -0,0 +1,95 @@
+// Copyright (C) 2002 Brad King (brad.king@kitware.com) 
+//                    Douglas Gregor (gregod@cs.rpi.edu)
+//
+// Copyright 2009 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// For more information, see http://www.boost.org
+
+
+#include <boost/utility/addressof.hpp>
+
+#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+#pragma warning(push, 3)
+#endif
+
+#include <iostream>
+
+#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+#pragma warning(pop)
+#endif
+
+#include <boost/detail/lightweight_test.hpp>
+
+template<class T> void scalar_test( T * = 0 )
+{
+    T* px = new T();
+
+    T& x = *px;
+    BOOST_TEST( boost::addressof(x) == px );
+
+    const T& cx = *px;
+    const T* pcx = boost::addressof(cx);
+    BOOST_TEST( pcx == px );
+
+    volatile T& vx = *px;
+    volatile T* pvx = boost::addressof(vx);
+    BOOST_TEST( pvx == px );
+
+    const volatile T& cvx = *px;
+    const volatile T* pcvx = boost::addressof(cvx);
+    BOOST_TEST( pcvx == px );
+
+    delete px;
+}
+
+template<class T> void array_test( T * = 0 )
+{
+    T nrg[3] = {1,2,3};
+    T (*pnrg)[3] = &nrg;
+    BOOST_TEST( boost::addressof(nrg) == pnrg );
+
+    T const cnrg[3] = {1,2,3};
+    T const (*pcnrg)[3] = &cnrg;
+    BOOST_TEST( boost::addressof(cnrg) == pcnrg );
+}
+
+class convertible {
+public:
+
+    convertible( int = 0 )
+    {
+    }
+
+    template<class U> operator U () const
+    {
+        return U();
+    }
+};
+
+class convertible2 {
+public:
+
+    convertible2( int = 0 )
+    {
+    }
+
+    operator convertible2* () const
+    {
+        return 0;
+    }
+};
+
+int main()
+{
+    scalar_test<convertible>();
+    scalar_test<convertible2>();
+
+    array_test<convertible>();
+    array_test<convertible2>();
+
+    return boost::report_errors();
+}

appveyor.yml

@@ -1,91 +0,0 @@
-# Copyright 2016-2019 Peter Dimov
-# Copyright 2019, 2022 Andrey Semashev
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
-
-version: 1.0.{build}-{branch}
-
-shallow_clone: true
-
-branches:
-  only:
-    - master
-    - develop
-    - /feature\/.*/
-
-environment:
-  matrix:
-    - TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0
-      ADDRMD: 32
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: msvc-12.0,msvc-14.0
-      ADDRMD: 32,64
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: msvc-14.1
-      CXXSTD: 14,17,latest
-      ADDRMD: 32,64
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-    - TOOLSET: msvc-14.2
-      ADDRMD: 32,64
-      CXXSTD: 14,17,20,latest
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-    - TOOLSET: msvc-14.3
-      ADDRMD: 32,64
-      CXXSTD: 14,17,20,latest
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
-    - TOOLSET: clang-win
-      ADDRMD: 32
-      CXXSTD: 14,17,latest
-      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars32.bat
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-    - TOOLSET: clang-win
-      ADDRMD: 64
-      CXXSTD: 14,17,latest
-      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,1z
-      ADDPATH: C:\cygwin\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,1z
-      ADDPATH: C:\cygwin64\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,1z
-      ADDPATH: C:\mingw\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,1z
-      ADDPATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,17
-      ADDPATH: C:\mingw-w64\x86_64-7.3.0-posix-seh-rt_v5-rev0\mingw64\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 03,11,14,17,2a
-      ADDPATH: C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-
-install:
-  - set GIT_FETCH_JOBS=8
-  - set BOOST_BRANCH=develop
-  - if "%APPVEYOR_REPO_BRANCH%" == "master" set BOOST_BRANCH=master
-  - cd ..
-  - git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
-  - cd boost-root
-  - git submodule update --init tools/boostdep
-  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\utility
-  - python tools/boostdep/depinst/depinst.py %DEPINST_ARG_INCLUDE_EXAMPLES% --git_args "--jobs %GIT_FETCH_JOBS%" utility
-  - cmd /c bootstrap
-  - b2 headers
-
-build: off
-
-test_script:
-  - PATH=%ADDPATH%%PATH%
-  - if not "%ENV_SCRIPT%" == "" call "%ENV_SCRIPT%"
-  - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
-  - if not "%ADDRMD%" == "" set ADDRMD=address-model=%ADDRMD%
-  - b2 -j %NUMBER_OF_PROCESSORS% libs/utility/test toolset=%TOOLSET% %CXXSTD% %ADDRMD% variant=debug,release

assert.html

@@ -0,0 +1,115 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html>
+	<head>
+		<title>Boost: assert.hpp documentation</title>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+	</head>
+	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
+		<table border="0" width="100%">
+			<tr>
+				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
+				</td>
+				<td align="center">
+					<h1>assert.hpp</h1>
+				</td>
+			</tr>
+			<tr>
+				<td colspan="2" height="64">&nbsp;</td>
+			</tr>
+		</table>
+		<p>
+			<a href="#BOOST_ASSERT">BOOST_ASSERT</a><br>
+            <a href="#BOOST_ASSERT_MSG">BOOST_ASSERT_MSG</a><br>
+            <a href="#BOOST_VERIFY">BOOST_VERIFY</a></p>
+            
+<h2><a name="BOOST_ASSERT">BOOST_ASSERT</a></h2>
+		<p>
+			The header <STRONG>&lt;boost/assert.hpp&gt;</STRONG> defines the macro <b>BOOST_ASSERT</b>, 
+			which is similar to the standard <STRONG>assert</STRONG> macro defined in <STRONG>&lt;cassert&gt;</STRONG>. 
+			The macro is intended to be used in both Boost libraries and user 
+            code.
+		</p>
+		<P>By default, <tt>BOOST_ASSERT(expr)</tt> is equivalent to <tt>assert(expr)</tt>.</P>
+		<P>If the macro <STRONG>BOOST_DISABLE_ASSERTS</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			is included, <tt>BOOST_ASSERT(expr)</tt> is defined as <tt>((void)0)</tt>. This 
+			allows users to selectively disable <STRONG>BOOST_ASSERT</STRONG> without 
+			affecting the definition of the standard <STRONG>assert</STRONG>.</P>
+		<P>If the macro <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			is included, <tt>BOOST_ASSERT(expr)</tt> evaluates <b>expr</b> and, if the 
+			result is false, evaluates the expression</P>
+		<blockquote>
+		<P><tt>::boost::assertion_failed(#expr, <a href="current_function.html">BOOST_CURRENT_FUNCTION</a>, 
+				__FILE__, __LINE__)</tt></P>
+		</blockquote>
+		<P><STRONG>assertion_failed</STRONG> is declared in <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			as</P>
+		<blockquote>
+		<pre>namespace boost
+{
+  void assertion_failed(char const * expr, char const * function, char const * file, long line);
+}
+</pre>
+		</blockquote>
+		<p>but it is never defined. The user is expected to supply an appropriate 
+			definition.</p>
+		<P>As is the case with <STRONG>&lt;cassert&gt;</STRONG>, <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			can be included multiple times in a single translation unit. <STRONG>BOOST_ASSERT</STRONG>
+			will be redefined each time as specified above.</P>
+			
+<h2><a name="BOOST_ASSERT_MSG">BOOST_ASSERT_MSG</a></h2>
+		<p>
+			The header <STRONG>&lt;boost/assert.hpp&gt;</STRONG> defines the macro <b>BOOST_ASSERT_MSG</b>, 
+			which is similar to the standard <STRONG>assert</STRONG> macro defined in <STRONG>&lt;cassert&gt;</STRONG>, 
+            but with an additional macro parameter supplying an error message. The macro is intended to be used in both Boost libraries 
+            and user code.
+		</p>
+		<P> <tt>BOOST_ASSERT_MSG(expr, msg)</tt> is equivalent to <code>
+        ((void)0)</code> if <b>BOOST_DISABLE_ASSERTS</b> or <b>NDEBUG</b> are 
+        defined or <code>expr</code> evaluates to <code>true</code>. If those 
+        macros and <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> are not 
+        defined, and <code>expr</code> evaluates to <code>false</code>, an error 
+        message that includes <tt>#expr</tt>, <tt>msg</tt>, <tt> <a href="current_function.html">BOOST_CURRENT_FUNCTION</a></tt>, <tt>
+        __FILE__</tt>, and <tt>__LINE__</tt> is sent to output stream <b>
+        BOOST_ASSERT_MSG_OSTREAM</b> 
+        and <code>std::abort()</code> is called.</P>
+		<P> <b>BOOST_ASSERT_MSG_OSTREAM</b> defines the output stream. It defaults to <code>std::cerr</code>. 
+        Integrated development environments (IDE's) like Microsoft Visual Studio 
+        may produce easier to understand output if messages go to a different 
+        stream, such as <code>std::cout</code>. Users may define <b>BOOST_ASSERT_MSG_OSTREAM</b> before including <STRONG>&lt;boost/assert.hpp&gt;</STRONG> 
+        to specify a different output stream.&nbsp; </P>
+		<P>If the macro <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			is included, instead of sending a error message to an output 
+        stream, this expression is evaluated</P>
+		<blockquote>
+		<P><tt>::boost::assertion_failed_msg(#expr, msg, <a href="current_function.html">BOOST_CURRENT_FUNCTION</a>, 
+				__FILE__, __LINE__)</tt></P>
+		</blockquote>
+		<P><STRONG>assertion_failed_msg</STRONG> is declared in <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			as</P>
+		<blockquote>
+		<pre>namespace boost
+{
+  void assertion_failed_msg(char const * expr, char const * msg, char const * function, char const * file, long line);
+}
+</pre>
+		</blockquote>
+		<p>but it is never defined. The user is expected to supply an appropriate 
+			definition.</p>
+		<P>As is the case with <STRONG>&lt;cassert&gt;</STRONG>, <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
+			can be included multiple times in a single translation unit. <STRONG>BOOST_ASSERT_MSG</STRONG>
+			will be redefined each time as specified above.</P>
+			
+<h2><a name="BOOST_VERIFY">BOOST_VERIFY</a></h2>
+		<p><STRONG>&lt;boost/assert.hpp&gt;</STRONG> also defines the macro <STRONG>BOOST_VERIFY</STRONG>. 
+			It has exactly the same behavior as <STRONG>BOOST_ASSERT</STRONG>, except that 
+			the expression that is passed to <STRONG>BOOST_VERIFY</STRONG> is always 
+			evaluated. This is useful when the asserted expression has desirable side 
+			effects; it can also help suppress warnings about unused variables when the 
+			only use of the variable is inside an assertion.</p>
+		<p><br>
+			<small>Copyright <20> 2002, 2007 by Peter Dimov.&nbsp; Copyright <20> 2011 
+        by Beman Dawes. Distributed under the Boost Software 
+				License, Version 1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A>
+				or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
+	</body>
+</html>

assert_test.cpp

@@ -0,0 +1,153 @@
+//
+//  assert_test.cpp - a test for boost/assert.hpp
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (2) Beman Dawes 2011
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/detail/lightweight_test.hpp>
+
+#include <boost/assert.hpp>
+
+void test_default()
+{
+    int x = 1;
+
+    BOOST_ASSERT(1);
+    BOOST_ASSERT(x);
+    BOOST_ASSERT(x == 1);
+    BOOST_ASSERT(&x);
+
+    BOOST_ASSERT_MSG(1, "msg");
+    BOOST_ASSERT_MSG(x, "msg");
+    BOOST_ASSERT_MSG(x == 1, "msg");
+    BOOST_ASSERT_MSG(&x, "msg");
+}
+
+#define BOOST_DISABLE_ASSERTS
+#include <boost/assert.hpp>
+
+void test_disabled()
+{
+    int x = 1;
+
+    BOOST_ASSERT(1);
+    BOOST_ASSERT(x);
+    BOOST_ASSERT(x == 1);
+    BOOST_ASSERT(&x);
+
+    BOOST_ASSERT_MSG(1, "msg");
+    BOOST_ASSERT_MSG(x, "msg");
+    BOOST_ASSERT_MSG(x == 1, "msg");
+    BOOST_ASSERT_MSG(&x, "msg");
+
+    BOOST_ASSERT(0);
+    BOOST_ASSERT(!x);
+    BOOST_ASSERT(x == 0);
+
+    BOOST_ASSERT_MSG(0, "msg");
+    BOOST_ASSERT_MSG(!x, "msg");
+    BOOST_ASSERT_MSG(x == 0, "msg");
+
+    void * p = 0;
+
+    BOOST_ASSERT(p);
+    BOOST_ASSERT_MSG(p, "msg");
+
+    // supress warnings
+    p = &x;
+    p = &p;
+}
+
+#undef BOOST_DISABLE_ASSERTS
+
+#define BOOST_ENABLE_ASSERT_HANDLER
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <cstdio>
+
+int handler_invoked = 0;
+int msg_handler_invoked = 0;
+
+void boost::assertion_failed(char const * expr, char const * function, char const * file, long line)
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::printf;
+#endif
+
+    printf("Expression: %s\nFunction: %s\nFile: %s\nLine: %ld\n\n", expr, function, file, line);
+    ++handler_invoked;
+}
+
+void boost::assertion_failed_msg(char const * expr, char const * msg, char const * function,
+  char const * file, long line)
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::printf;
+#endif
+
+    printf("Expression: %s Message: %s\nFunction: %s\nFile: %s\nLine: %ld\n\n",
+      expr, msg, function, file, line);
+    ++msg_handler_invoked;
+}
+
+struct X
+{
+    static void f()
+    {
+        BOOST_ASSERT(0);
+        BOOST_ASSERT_MSG(0, "msg f()");
+    }
+};
+
+void test_handler()
+{
+    int x = 1;
+
+    BOOST_ASSERT(1);
+    BOOST_ASSERT(x);
+    BOOST_ASSERT(x == 1);
+    BOOST_ASSERT(&x);
+
+    BOOST_ASSERT_MSG(1, "msg2");
+    BOOST_ASSERT_MSG(x, "msg3");
+    BOOST_ASSERT_MSG(x == 1, "msg4");
+    BOOST_ASSERT_MSG(&x, "msg5");
+
+    BOOST_ASSERT(0);
+    BOOST_ASSERT(!x);
+    BOOST_ASSERT(x == 0);
+
+    BOOST_ASSERT_MSG(0,"msg 0");
+    BOOST_ASSERT_MSG(!x, "msg !x");
+    BOOST_ASSERT_MSG(x == 0, "msg x == 0");
+
+    void * p = 0;
+
+    BOOST_ASSERT(p);
+    BOOST_ASSERT_MSG(p, "msg p");
+
+    X::f();
+
+    BOOST_ASSERT(handler_invoked == 5);
+    BOOST_TEST(handler_invoked == 5);
+
+    BOOST_ASSERT_MSG(msg_handler_invoked == 5, "msg_handler_invoked count is wrong");
+    BOOST_TEST(msg_handler_invoked == 5);
+}
+
+#undef BOOST_ENABLE_ASSERT_HANDLER
+#undef BOOST_ENABLE_ASSERT_MSG_HANDLER
+
+int main()
+{
+    test_default();
+    test_disabled();
+    test_handler();
+
+    return boost::report_errors();
+}

base_from_member.html

@@ -0,0 +1,398 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
+<html>
+<head>
+<title>Boost: Base-from-Member Idiom Documentation</title>
+</head>
+
+<body bgcolor="white" link="blue" text="black" vlink="purple" alink="red"> 
+<h1><img src="../../boost.png" alt="C++ Boost" align="middle"
+width="277" height="86">Base-from-Member Idiom</h1>
+
+<p>The class template <code>boost::base_from_member</code> provides
+a workaround for a class that needs to initialize a base class with a
+member.  The class template is in <cite><a
+href="../../boost/utility/base_from_member.hpp">boost/utility/base_from_member.hpp</a></cite>
+which is included in <i><a href="../../boost/utility.hpp">boost/utility.hpp</a></i>.</p>
+
+<p>There is test/example code in <cite><a
+href="base_from_member_test.cpp">base_from_member_test.cpp</a></cite>.</p>
+
+<h2><a name="contents">Contents</a></h2>
+
+<ul>
+	<li><a href="#contents">Contents</a></li>
+	<li><a href="#rationale">Rationale</a></li>
+	<li><a href="#synopsis">Synopsis</a></li>
+	<li><a href="#usage">Usage</a></li>
+	<li><a href="#example">Example</a></li>
+	<li><a href="#credits">Credits</a>
+		<ul>
+			<li><a href="#contributors">Contributors</a></li>
+		</ul></li>
+</ul>
+
+<h2><a name="rationale">Rationale</a></h2>
+
+<p>When developing a class, sometimes a base class needs to be
+initialized with a member of the current class.  As a na&iuml;ve
+example:</p>
+
+<blockquote><pre>
+#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
+#include &lt;ostream&gt;    <i>// for std::ostream</i>
+
+class fdoutbuf
+    : public std::streambuf
+{
+public:
+    explicit fdoutbuf( int fd );
+    //...
+};
+
+class fdostream
+    : public std::ostream
+{
+protected:
+    fdoutbuf buf;
+public:
+    explicit fdostream( int fd )
+        : buf( fd ), std::ostream( &amp;buf )
+        {}
+    //...
+};
+</pre></blockquote>
+
+<p>This is undefined because C++'s initialization order mandates that
+the base class is initialized before the member it uses.  <a
+href="http://www.moocat.org">R. Samuel Klatchko</a> developed a way
+around this by using the initialization order in his favor.  Base
+classes are intialized in order of declaration, so moving the desired
+member to another base class, that is initialized before the desired
+base class, can ensure proper initialization.</p>
+
+<p>A custom base class can be made for this idiom:</p>
+
+<blockquote><pre>
+#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
+#include &lt;ostream&gt;    <i>// for std::ostream</i>
+
+class fdoutbuf
+    : public std::streambuf
+{
+public:
+    explicit fdoutbuf( int fd );
+    //...
+};
+
+struct fdostream_pbase
+{
+    fdoutbuf sbuffer;
+
+    explicit fdostream_pbase( int fd )
+        : sbuffer( fd )
+        {}
+};
+
+class fdostream
+    : private fdostream_pbase
+    , public std::ostream
+{
+    typedef fdostream_pbase  pbase_type;
+    typedef std::ostream     base_type;
+
+public:
+    explicit fdostream( int fd )
+        : pbase_type( fd ), base_type( &amp;sbuffer )
+        {}
+    //...
+};
+</pre></blockquote>
+
+<p>Other projects can use similar custom base classes.  The technique
+is basic enough to make a template, with a sample template class in
+this library.  The main template parameter is the type of the enclosed
+member.  The template class has several (explicit) constructor member
+templates, which implicitly type the constructor arguments and pass them
+to the member.  The template class uses implicit copy construction and
+assignment, cancelling them if the enclosed member is non-copyable.</p>
+
+<p>Manually coding a base class may be better if the construction
+and/or copying needs are too complex for the supplied template class,
+or if the compiler is not advanced enough to use it.</p>
+
+<p>Since base classes are unnamed, a class cannot have multiple (direct)
+base classes of the same type.  The supplied template class has an
+extra template parameter, an integer, that exists solely to provide type
+differentiation.  This parameter has a default value so a single use of a
+particular member type does not need to concern itself with the integer.</p>
+
+<h2><a name="synopsis">Synopsis</a></h2>
+
+<blockquote><pre>
+#include &lt;type_traits&gt;  <i>// exposition only</i>
+
+#ifndef BOOST_BASE_FROM_MEMBER_MAX_ARITY
+#define BOOST_BASE_FROM_MEMBER_MAX_ARITY  10
+#endif
+
+template &lt; typename MemberType, int UniqueID = 0 &gt;
+class boost::base_from_member
+{
+protected:
+    MemberType  member;
+
+#if <i>C++2011 is in use</i>
+    template&lt; typename ...T &gt;
+    explicit constexpr   base_from_member( T&amp;&amp; ...x )
+     noexcept( std::is_nothrow_constructible&lt;MemberType, T...&gt;::value );
+#else
+    base_from_member();
+
+    template&lt; typename T1 &gt;
+    explicit  base_from_member( T1 x1 );
+
+    template&lt; typename T1, typename T2 &gt;
+    base_from_member( T1 x1, T2 x2 );
+
+    //...
+
+    template&lt; typename T1, typename T2, typename T3, typename T4,
+     typename T5, typename T6, typename T7, typename T8, typename T9,
+     typename T10 &gt;
+    base_from_member( T1 x1, T2 x2, T3 x3, T4 x4, T5 x5, T6 x6, T7 x7,
+     T8 x8, T9 x9, T10 x10 );
+#endif
+};
+</pre></blockquote>
+
+<p>The class template has a first template parameter
+<var>MemberType</var> representing the type of the based-member.
+It has a last template parameter <var>UniqueID</var>, that is an
+<code>int</code>, to differentiate between multiple base classes that use
+the same based-member type.  The last template parameter has a default
+value of zero if it is omitted.  The class template has a protected
+data member called <var>member</var> that the derived class can use
+for later base classes (or itself).</p>
+
+<p>If the appropriate features of C++2011 are present, there will be a single
+constructor template.  It implements &quot;perfect forwarding&quot; to the best
+constructor call of <code>member</code> (if any).  The constructor template is
+marked both <code>constexpr</code> and <code>explicit</code>.  The former will
+be ignored if the corresponding inner constructor call (of <code>member</code>)
+does not have the marker.  The latter binds the other way; always taking
+effect, even when the inner constructor call does not have the marker.  The
+constructor template propagates the <code>noexcept</code> status of the inner
+constructor call.  (The constructor template has a trailing parameter with a
+default value that disables the template when its signature is too close to the
+signatures of the automatically-defined non-template copy- and/or
+move-constructors of <code>base_from_member</code>.)</p>
+
+<p>On earlier-standard compilers, there is a default constructor and several
+constructor member templates.  These constructor templates can take as many
+arguments (currently up to ten) as possible and pass them to a constructor of
+the data member.</p>
+
+<p>Since C++ does not allow any way to explicitly state
+the template parameters of a templated constructor, make sure that
+the arguments are already close as possible to the actual type used in
+the data member's desired constructor.  Explicit conversions may be
+necessary.</p>
+
+<p>The <var>BOOST_BASE_FROM_MEMBER_MAX_ARITY</var> macro constant specifies
+the maximum argument length for the constructor templates.  The constant
+may be overridden if more (or less) argument configurations are needed.  The
+constant may be read for code that is expandable like the class template and
+needs to maintain the same maximum size.  (Example code would be a class that
+uses this class template as a base class for a member with a flexible set of
+constructors.)  This constant is ignored when C++2011 features are present.</p>
+
+<h2><a name="usage">Usage</a></h2>
+
+<p>With the starting example, the <code>fdoutbuf</code> sub-object needs
+to be encapsulated in a base class that is inheirited before
+<code>std::ostream</code>.</p>
+
+<blockquote><pre>
+#include &lt;boost/utility/base_from_member.hpp&gt;
+
+#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
+#include &lt;ostream&gt;    <i>// for std::ostream</i>
+
+class fdoutbuf
+    : public std::streambuf
+{
+public:
+    explicit fdoutbuf( int fd );
+    //...
+};
+
+class fdostream
+    : private boost::base_from_member&lt;fdoutbuf&gt;
+    , public std::ostream
+{
+    // Helper typedef's
+    typedef boost::base_from_member&lt;fdoutbuf&gt;  pbase_type;
+    typedef std::ostream                        base_type;
+
+public:
+    explicit fdostream( int fd )
+        : pbase_type( fd ), base_type( &amp;member )
+        {}
+    //...
+};
+</pre></blockquote>
+
+<p>The base-from-member idiom is an implementation detail, so it
+should not be visible to the clients (or any derived classes) of
+<code>fdostream</code>.  Due to the initialization order, the
+<code>fdoutbuf</code> sub-object will get initialized before the
+<code>std::ostream</code> sub-object does, making the former
+sub-object safe to use in the latter sub-object's construction.  Since the
+<code>fdoutbuf</code> sub-object of the final type is the only sub-object
+with the name &quot;member,&quot; that name can be used
+unqualified within the final class.</p>
+
+<h2><a name="example">Example</a></h2>
+
+<p>The base-from-member class templates should commonly involve
+only one base-from-member sub-object, usually for attaching a
+stream-buffer to an I/O stream.  The next example demonstrates how
+to use multiple base-from-member sub-objects and the resulting
+qualification issues.</p>
+
+<blockquote><pre>
+#include &lt;boost/utility/base_from_member.hpp&gt;
+
+#include &lt;cstddef&gt;  <i>// for NULL</i>
+
+struct an_int
+{
+    int  y;
+
+    an_int( float yf );
+};
+
+class switcher
+{
+public:
+    switcher();
+    switcher( double, int * );
+    //...
+};
+
+class flow_regulator
+{
+public:
+    flow_regulator( switcher &amp;, switcher &amp; );
+    //...
+};
+
+template &lt; unsigned Size &gt;
+class fan
+{
+public:
+    explicit fan( switcher );
+    //...
+};
+
+class system
+    : private boost::base_from_member&lt;an_int&gt;
+    , private boost::base_from_member&lt;switcher&gt;
+    , private boost::base_from_member&lt;switcher, 1&gt;
+    , private boost::base_from_member&lt;switcher, 2&gt;
+    , protected flow_regulator
+    , public fan&lt;6&gt;
+{
+    // Helper typedef's
+    typedef boost::base_from_member&lt;an_int&gt;       pbase0_type;
+    typedef boost::base_from_member&lt;switcher&gt;     pbase1_type;
+    typedef boost::base_from_member&lt;switcher, 1&gt;  pbase2_type;
+    typedef boost::base_from_member&lt;switcher, 2&gt;  pbase3_type;
+
+    typedef flow_regulator  base1_type;
+    typedef fan&lt;6&gt;          base2_type;
+
+public:
+    system( double x );
+    //...
+};
+
+system::system( double x )
+    : pbase0_type( 0.2 )
+    , pbase1_type()
+    , pbase2_type( -16, &amp;this-&gt;pbase0_type::member )
+    , pbase3_type( x, static_cast&lt;int *&gt;(NULL) )
+    , base1_type( pbase3_type::member, pbase1_type::member )
+    , base2_type( pbase2_type::member )
+{
+    //...
+}
+</pre></blockquote>
+
+<p>The final class has multiple sub-objects with the name
+&quot;member,&quot; so any use of that name needs qualification by
+a name of the appropriate base type.  (Using <code>typedef</code>s
+ease mentioning the base types.)  However, the fix introduces a new
+problem when a pointer is needed.  Using the address operator with
+a sub-object qualified with its class's name results in a pointer-to-member
+(here, having a type of <code>an_int boost::base_from_member&lt;an_int,
+0&gt; :: *</code>) instead of a pointer to the member (having a type of
+<code>an_int *</code>).  The new problem is fixed by qualifying the
+sub-object with &quot;<code>this-&gt;</code>,&quot; and is needed just
+for pointers, and not for references or values.</p>
+
+<p>There are some argument conversions in the initialization.  The
+constructor argument for <code>pbase0_type</code> is converted from
+<code>double</code> to <code>float</code>.  The first constructor
+argument for <code>pbase2_type</code> is converted from <code>int</code>
+to <code>double</code>.  The second constructor argument for
+<code>pbase3_type</code> is a special case of necessary conversion; all
+forms of the null-pointer literal in C++ (except <code>nullptr</code> from
+C++2011) also look like compile-time integral expressions, so C++ always
+interprets such code as an integer when it has overloads that can take either
+an integer or a pointer.  The last conversion is necessary for the compiler to
+call a constructor form with the exact pointer type used in
+<code>switcher</code>'s constructor.  (If C++2011's <code>nullptr</code> is
+used, it still needs a conversion if multiple pointer types can be accepted in
+a constructor call but <code>std::nullptr_t</code> cannot.)</p>
+
+<h2><a name="credits">Credits</a></h2>
+
+<h3><a name="contributors">Contributors</a></h3>
+
+<dl>
+	<dt><a href="http://www.boost.org/people/ed_brey.htm">Ed Brey</a>
+	<dd>Suggested some interface changes.
+
+	<dt><a href="http://www.moocat.org">R. Samuel Klatchko</a> (<a
+	href="mailto:rsk@moocat.org">rsk@moocat.org</a>, <a
+	href="mailto:rsk@brightmail.com">rsk@brightmail.com</a>)
+	<dd>Invented the idiom of how to use a class member for initializing
+		a base class.
+
+	<dt><a href="http://www.boost.org/people/dietmar_kuehl.htm">Dietmar Kuehl</a>
+	<dd>Popularized the base-from-member idiom in his
+		<a href="http://www.informatik.uni-konstanz.de/~kuehl/c++/iostream/">IOStream
+		example classes</a>.
+
+	<dt>Jonathan Turkanis
+	<dd>Supplied an implementation of generating the constructor templates that
+		can be controlled and automated with macros.  The implementation uses
+		the <a href="../preprocessor/index.html">Preprocessor library</a>.
+
+	<dt><a href="http://www.boost.org/people/daryle_walker.html">Daryle Walker</a>
+	<dd>Started the library.  Contributed the test file <cite><a
+		href="base_from_member_test.cpp">base_from_member_test.cpp</a></cite>.
+</dl>
+
+<hr>
+
+<p>Revised: 16 February 2012</p>
+
+<p>Copyright 2001, 2003, 2004, 2012 Daryle Walker.  Use, modification, and distribution
+are subject to the Boost Software License, Version 1.0.  (See accompanying
+file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or a copy at &lt;<a
+href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>&gt;.)</p>
+
+</body>
+</html>

base_from_member_test.cpp

@@ -10,14 +10,15 @@
 //  14 Jun 2003  Adjusted code for Boost.Test changes (Daryle Walker)
 //  29 Aug 2001  Initial Version (Daryle Walker)
 
-#include <boost/core/lightweight_test.hpp>
+#include <boost/test/minimal.hpp>  // for BOOST_CHECK, main
 
 #include <boost/config.hpp>       // for BOOST_NO_MEMBER_TEMPLATES
+#include <boost/cstdlib.hpp>      // for boost::exit_success
 #include <boost/noncopyable.hpp>  // for boost::noncopyable
 
 #include <boost/utility/base_from_member.hpp>  // for boost::base_from_member
 
-#include <functional>  // for std::less
+#include <functional>  // for std::binary_function, std::less
 #include <iostream>    // for std::cout (std::ostream, std::endl indirectly)
 #include <set>         // for std::set
 #include <typeinfo>    // for std::type_info
@@ -45,6 +46,7 @@ template < typename T >
 
 // A custom comparison type is needed
 struct object_id_compare
+    : std::binary_function<object_id, object_id, bool>
 {
     bool  operator ()( object_id const &a, object_id const &b ) const;
 
@@ -171,13 +173,13 @@ object_registrar  obj_reg;
 
 // Main functionality
 int
-main()
+test_main( int , char * [] )
 {
-    BOOST_TEST( obj_reg.db_.empty() );
-    BOOST_TEST( obj_reg.defrauders_in_.empty() );
-    BOOST_TEST( obj_reg.defrauders_out_.empty() );
-    BOOST_TEST( obj_reg.overeager_.empty() );
-    BOOST_TEST( obj_reg.overkilled_.empty() );
+    BOOST_CHECK( obj_reg.db_.empty() );
+    BOOST_CHECK( obj_reg.defrauders_in_.empty() );
+    BOOST_CHECK( obj_reg.defrauders_out_.empty() );
+    BOOST_CHECK( obj_reg.overeager_.empty() );
+    BOOST_CHECK( obj_reg.overkilled_.empty() );
 
     // Make a separate block to examine pre- and post-effects
     {
@@ -185,20 +187,20 @@ main()
         using std::endl;
 
         bad_class  bc;
-        BOOST_TEST( obj_reg.db_.size() == 3 );
-        BOOST_TEST( obj_reg.defrauders_in_.size() == 1 );
+        BOOST_CHECK( obj_reg.db_.size() == 3 );
+        BOOST_CHECK( obj_reg.defrauders_in_.size() == 1 );
 
         good_class_1  gc1;
-        BOOST_TEST( obj_reg.db_.size() == 6 );
-        BOOST_TEST( obj_reg.defrauders_in_.size() == 1 );
+        BOOST_CHECK( obj_reg.db_.size() == 6 );
+        BOOST_CHECK( obj_reg.defrauders_in_.size() == 1 );
 
         good_class_2  gc2;
-        BOOST_TEST( obj_reg.db_.size() == 11 );
-        BOOST_TEST( obj_reg.defrauders_in_.size() == 1 );
+        BOOST_CHECK( obj_reg.db_.size() == 11 );
+        BOOST_CHECK( obj_reg.defrauders_in_.size() == 1 );
 
-        BOOST_TEST( obj_reg.defrauders_out_.empty() );
-        BOOST_TEST( obj_reg.overeager_.empty() );
-        BOOST_TEST( obj_reg.overkilled_.empty() );
+        BOOST_CHECK( obj_reg.defrauders_out_.empty() );
+        BOOST_CHECK( obj_reg.overeager_.empty() );
+        BOOST_CHECK( obj_reg.overkilled_.empty() );
 
         // Getting the addresses of the objects ensure
         // that they're used, and not optimized away.
@@ -207,13 +209,13 @@ main()
         cout << "Object 'gc2' is at " << &gc2 << '.' << endl;
     }
 
-    BOOST_TEST( obj_reg.db_.empty() );
-    BOOST_TEST( obj_reg.defrauders_in_.size() == 1 );
-    BOOST_TEST( obj_reg.defrauders_out_.size() == 1 );
-    BOOST_TEST( obj_reg.overeager_.empty() );
-    BOOST_TEST( obj_reg.overkilled_.empty() );
+    BOOST_CHECK( obj_reg.db_.empty() );
+    BOOST_CHECK( obj_reg.defrauders_in_.size() == 1 );
+    BOOST_CHECK( obj_reg.defrauders_out_.size() == 1 );
+    BOOST_CHECK( obj_reg.overeager_.empty() );
+    BOOST_CHECK( obj_reg.overkilled_.empty() );
 
-    return boost::report_errors();
+    return boost::exit_success;
 }
 
 

binary_search_test.cpp

@@ -0,0 +1,258 @@
+// (C) Copyright David Abrahams 2000.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <vector>
+#include <string>
+#include <memory>
+#include <climits>
+#include <iostream>
+#include <cassert>
+#include <stdlib.h> // for rand(). Would use cstdlib but VC6.4 doesn't put it in std::
+#include <list>
+#include <algorithm>
+#include <boost/detail/binary_search.hpp>
+#include <boost/detail/workaround.hpp>
+#include <cstddef>
+
+#if defined(__SGI_STL_PORT) ? defined(__SGI_STL_OWN_IOSTREAMS) : (!defined(__GNUC__) || __GNUC__ > 2)
+# define USE_SSTREAM
+#endif
+
+#ifdef USE_SSTREAM
+# include <sstream>
+#else
+# include <strstream>
+#endif
+
+namespace {
+
+// In order to get ADL to find the comparison operators defined below, they have
+struct mystring : std::string
+{
+    typedef std::string base;
+    
+    mystring(std::string const& x)
+        : base(x) {}
+};
+
+typedef std::vector<mystring> string_vector;
+
+const std::size_t sequence_length = 1000;
+
+unsigned random_number()
+{
+    return static_cast<unsigned>(::rand()) % sequence_length;
+}
+
+# ifndef USE_SSTREAM
+class unfreezer {
+ public:
+    unfreezer(std::ostrstream& s) : m_stream(s) {}
+    ~unfreezer() { m_stream.freeze(false); }
+ private:
+    std::ostrstream& m_stream;
+};
+# endif
+
+template <class T>
+void push_back_random_number_string(T& seq)
+{
+    unsigned value = random_number();
+# if defined(__SGI_STL_PORT) ? defined(__SGI_STL_OWN_IOSTREAMS) : (!defined(__GNUC__) || __GNUC__ > 2)
+    std::ostringstream s;
+    s << value;
+    seq.push_back(s.str());
+# else
+    std::ostrstream s;
+    auto unfreezer unfreeze(s);
+    s << value << char(0);
+    seq.push_back(std::string(s.str()));
+# endif
+}
+
+inline unsigned to_int(unsigned x) { return x; }
+inline unsigned to_int(const std::string& x) { return atoi(x.c_str()); }
+
+struct cmp
+{
+    template <class A1, class A2>
+    inline bool operator()(const A1& a1, const A2& a2) const
+    {
+        return to_int(a1) < to_int(a2);
+    }
+};
+
+inline bool operator<(const mystring& x, const unsigned y)
+{
+    return to_int(x) < y;
+}
+
+inline bool operator<(const unsigned y, const mystring& x)
+{
+    return y < to_int(x);
+}
+
+template <class T>
+void sort_by_value(T& x);
+
+template <class T>
+void sort_by_value_(T& v, long)
+{
+    std::sort(v.begin(), v.end(), cmp());
+}
+
+template <class T>
+void random_sorted_sequence(T& seq)
+{
+    seq.clear();
+    for (std::size_t i = 0; i < sequence_length; ++i)
+    {
+        push_back_random_number_string(seq);
+    }
+    sort_by_value(seq);
+}
+
+template <class T, class A>
+void sort_by_value_(std::list<T,A>& l, int)
+{
+# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) && !defined(__SGI_STL_PORT)
+// VC6's standard lib doesn't have a template member function for list::sort()
+    std::vector<T> seq;
+    seq.reserve(sequence_length);
+    std::copy(l.begin(), l.end(), std::back_inserter(seq));
+    sort_by_value(seq);
+    std::copy(seq.begin(), seq.end(), l.begin());
+# else
+    l.sort(cmp());
+# endif
+}
+
+template <class T>
+void sort_by_value(T& x)
+{
+    (sort_by_value_)(x, 1);
+}
+
+// A way to select the comparisons with/without a Compare parameter for testing.
+template <class Compare> struct searches
+{
+    template <class Iterator, class Key>
+    static Iterator lower_bound(Iterator start, Iterator finish, Key key, Compare cmp)
+        { return boost::detail::lower_bound(start, finish, key, cmp); }
+
+    template <class Iterator, class Key>
+    static Iterator upper_bound(Iterator start, Iterator finish, Key key, Compare cmp)
+        { return boost::detail::upper_bound(start, finish, key, cmp); }
+
+    template <class Iterator, class Key>
+    static std::pair<Iterator, Iterator> equal_range(Iterator start, Iterator finish, Key key, Compare cmp)
+        { return boost::detail::equal_range(start, finish, key, cmp); }
+
+    template <class Iterator, class Key>
+    static bool binary_search(Iterator start, Iterator finish, Key key, Compare cmp)
+        { return boost::detail::binary_search(start, finish, key, cmp); }
+};
+
+struct no_compare {};
+
+template <> struct searches<no_compare>
+{
+    template <class Iterator, class Key>
+    static Iterator lower_bound(Iterator start, Iterator finish, Key key, no_compare)
+        { return boost::detail::lower_bound(start, finish, key); }
+
+    template <class Iterator, class Key>
+    static Iterator upper_bound(Iterator start, Iterator finish, Key key, no_compare)
+        { return boost::detail::upper_bound(start, finish, key); }
+
+    template <class Iterator, class Key>
+    static std::pair<Iterator, Iterator> equal_range(Iterator start, Iterator finish, Key key, no_compare)
+        { return boost::detail::equal_range(start, finish, key); }
+
+    template <class Iterator, class Key>
+    static bool binary_search(Iterator start, Iterator finish, Key key, no_compare)
+        { return boost::detail::binary_search(start, finish, key); }
+};
+
+template <class Sequence, class Compare>
+void test_loop(Sequence& x, Compare cmp, unsigned long test_count)
+{
+    typedef typename Sequence::const_iterator const_iterator;
+    
+    for (unsigned long i = 0; i < test_count; ++i)
+    {
+        random_sorted_sequence(x);
+        const const_iterator start = x.begin();
+        const const_iterator finish = x.end();
+        
+        unsigned key = random_number();
+        const const_iterator l = searches<Compare>::lower_bound(start, finish, key, cmp);
+        const const_iterator u = searches<Compare>::upper_bound(start, finish, key, cmp);
+
+        bool found_l = false;
+        bool found_u = false;
+        std::size_t index = 0;
+        std::size_t count = 0;
+        unsigned last_value = 0;
+        for (const_iterator p = start; p != finish; ++p)
+        {
+            if (p == l)
+                found_l = true;
+            
+            if (p == u)
+            {
+                assert(found_l);
+                found_u = true;
+            }
+
+            unsigned value = to_int(*p);
+            assert(value >= last_value);
+            last_value = value;
+            
+            if (!found_l)
+            {
+                ++index;
+                assert(to_int(*p) < key);
+            }
+            else if (!found_u)
+            {
+                ++count;
+                assert(to_int(*p) == key);
+            }
+            else
+                assert(to_int(*p) > key);
+        }
+        assert(found_l || l == finish);
+        assert(found_u || u == finish);
+
+        std::pair<const_iterator, const_iterator>
+            range = searches<Compare>::equal_range(start, finish, key, cmp);
+        assert(range.first == l);
+        assert(range.second == u);
+
+        bool found = searches<Compare>::binary_search(start, finish, key, cmp);
+        assert(found == (u != l));
+        std::cout << "found " << count << " copies of " << key << " at index " << index << "\n";
+    }
+}
+
+}
+
+int main()
+{
+    string_vector x;
+    std::cout << "=== testing random-access iterators with <: ===\n";
+    test_loop(x, no_compare(), 25);
+    std::cout << "=== testing random-access iterators with compare: ===\n";
+    test_loop(x, cmp(), 25);
+    
+    std::list<mystring> y;
+    std::cout << "=== testing bidirectional iterators with <: ===\n";
+    test_loop(y, no_compare(), 25);
+    std::cout << "=== testing bidirectional iterators with compare: ===\n";
+    test_loop(y, cmp(), 25);
+    std::cerr << "******TEST PASSED******\n";
+    return 0;
+}

binary_test.cpp

@@ -6,7 +6,7 @@
     http://www.boost.org/LICENSE_1_0.txt)
 ==============================================================================*/
 
-#include <boost/core/lightweight_test.hpp>
+#include <boost/test/minimal.hpp>
 #include <boost/utility/binary.hpp>
 #include <algorithm>
 #include <cstddef>
@@ -614,34 +614,34 @@ typedef char (&unsigned_long_int_id_type)[unsigned_long_int_id];
 unsigned_int_id_type      binary_type_checker( unsigned int );
 unsigned_long_int_id_type binary_type_checker( unsigned long int );
 
-int main()
+int test_main( int, char *[] )
 {
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_1_bit ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_2_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_3_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_4_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_5_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_6_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_7_bits ) );
-  BOOST_TEST( is_ascending_from_0_array( unsigned_ints_8_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_1_bit ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_2_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_3_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_4_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_5_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_6_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_7_bits ) );
+  BOOST_CHECK( is_ascending_from_0_array( unsigned_ints_8_bits ) );
 
-  BOOST_TEST( std::equal( &random_unsigned_ints_hex[0]
+  BOOST_CHECK( std::equal( &random_unsigned_ints_hex[0]
                          , random_unsigned_ints_hex + num_random_test_values
                          , &random_unsigned_ints_binary[0]
                          )
              );
 
-  BOOST_TEST(    sizeof( binary_type_checker( BOOST_BINARY_U( 110100 1010 ) ) )
+  BOOST_CHECK(    sizeof( binary_type_checker( BOOST_BINARY_U( 110100 1010 ) ) )
                == unsigned_int_id
              );
 
-  BOOST_TEST(    sizeof( binary_type_checker( BOOST_BINARY_UL( 11110 ) ) )
+  BOOST_CHECK(    sizeof( binary_type_checker( BOOST_BINARY_UL( 11110 ) ) )
                == unsigned_long_int_id
              );
 
-  BOOST_TEST(    sizeof( binary_type_checker( BOOST_BINARY_LU( 10 0001 ) ) )
+  BOOST_CHECK(    sizeof( binary_type_checker( BOOST_BINARY_LU( 10 0001 ) ) )
                == unsigned_long_int_id
              );
 
-  return boost::report_errors();
+  return 0;
 }

call_traits.htm

@@ -1,19 +1,755 @@
 <html>
+
 <head>
-   <title>Boost.CallTraits</title>
-   <meta http-equiv="refresh" content="0; URL=./doc/html/utility/utilities/call_traits.html">
+<meta http-equiv="Content-Type"
+content="text/html; charset=iso-8859-1">
+<meta name="Template"
+content="C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\html.dot">
+<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
+<title>Call Traits</title>
 </head>
-<body>
-Automatic redirection failed, please go to
-<a href="./doc/html/utility/utilities/call_traits.html">./doc/html/utility/utilities/call_traits.html</a>
+
+<body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
+vlink="#800080">
+
+<h1><img src="../../boost.png" width="276" height="86">Header
+&lt;<a href="../../boost/detail/call_traits.hpp">boost/call_traits.hpp</a>&gt;</h1>
+
+<p>All of the contents of &lt;boost/call_traits.hpp&gt; are
+defined inside namespace boost.</p>
+
+<p>The template class call_traits&lt;T&gt; encapsulates the
+&quot;best&quot; method to pass a parameter of some type T to or
+from a function, and consists of a collection of typedefs defined
+as in the table below. The purpose of call_traits is to ensure
+that problems like &quot;<a href="#refs">references to references</a>&quot;
+never occur, and that parameters are passed in the most efficient
+manner possible (see <a href="#examples">examples</a>). In each
+case if your existing practice is to use the type defined on the
+left, then replace it with the call_traits defined type on the
+right. </p>
+
+<p>Note that for compilers that do not support either partial
+specialization or member templates, no benefit will occur from
+using call_traits: the call_traits defined types will always be
+the same as the existing practice in this case. In addition if
+only member templates and not partial template specialisation is
+support by the compiler (for example Visual C++ 6) then
+call_traits can not be used with array types (although it can be
+used to solve the reference to reference problem).</p>
+
+<table border="0" cellpadding="7" cellspacing="1" width="797">
+    <tr>
+        <td valign="top" width="17%" bgcolor="#008080"><p
+        align="center">Existing practice</p>
+        </td>
+        <td valign="top" width="35%" bgcolor="#008080"><p
+        align="center">call_traits equivalent</p>
+        </td>
+        <td valign="top" width="32%" bgcolor="#008080"><p
+        align="center">Description</p>
+        </td>
+        <td valign="top" width="16%" bgcolor="#008080"><p
+        align="center">Notes</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%"><p align="center">T<br>
+        (return by value)</p>
+        </td>
+        <td valign="top" width="35%"><p align="center"><code>call_traits&lt;T&gt;::value_type</code></p>
+        </td>
+        <td valign="top" width="32%">Defines a type that
+        represents the &quot;value&quot; of type T. Use this for
+        functions that return by value, or possibly for stored
+        values of type T.</td>
+        <td valign="top" width="16%"><p align="center">2</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%"><p align="center">T&amp;<br>
+        (return value)</p>
+        </td>
+        <td valign="top" width="35%"><p align="center"><code>call_traits&lt;T&gt;::reference</code></p>
+        </td>
+        <td valign="top" width="32%">Defines a type that
+        represents a reference to type T. Use for functions that
+        would normally return a T&amp;.</td>
+        <td valign="top" width="16%"><p align="center">1</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%"><p align="center">const
+        T&amp;<br>
+        (return value)</p>
+        </td>
+        <td valign="top" width="35%"><p align="center"><code>call_traits&lt;T&gt;::const_reference</code></p>
+        </td>
+        <td valign="top" width="32%">Defines a type that
+        represents a constant reference to type T. Use for
+        functions that would normally return a const T&amp;.</td>
+        <td valign="top" width="16%"><p align="center">1</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%"><p align="center">const
+        T&amp;<br>
+        (function parameter)</p>
+        </td>
+        <td valign="top" width="35%"><p align="center"><code>call_traits&lt;T&gt;::param_type</code></p>
+        </td>
+        <td valign="top" width="32%">Defines a type that
+        represents the &quot;best&quot; way to pass a parameter
+        of type T to a function.</td>
+        <td valign="top" width="16%"><p align="center">1,3</p>
+        </td>
+    </tr>
+</table>
+
+<p>Notes:</p>
+
+<ol>
+    <li>If T is already reference type, then call_traits is
+        defined such that <a href="#refs">references to
+        references</a> do not occur (requires partial
+        specialization).</li>
+    <li>If T is an array type, then call_traits defines <code>value_type</code>
+        as a &quot;constant pointer to type&quot; rather than an
+        &quot;array of type&quot; (requires partial
+        specialization). Note that if you are using value_type as
+        a stored value then this will result in storing a &quot;constant
+        pointer to an array&quot; rather than the array itself.
+        This may or may not be a good thing depending upon what
+        you actually need (in other words take care!).</li>
+    <li>If T is a small built in type or a pointer, then <code>param_type</code>
+        is defined as <code>T const</code>, instead of <code>T
+        const&amp;</code>. This can improve the ability of the
+        compiler to optimize loops in the body of the function if
+        they depend upon the passed parameter, the semantics of
+        the passed parameter is otherwise unchanged (requires
+        partial specialization).</li>
+</ol>
+
+<p>&nbsp;</p>
+
+<h3>Copy constructibility</h3>
+
+<p>The following table defines which call_traits types can always
+be copy-constructed from which other types, those entries marked
+with a '?' are true only if and only if T is copy constructible:</p>
+
+<table border="0" cellpadding="7" cellspacing="1" width="766">
+    <tr>
+        <td valign="top" width="17%">&nbsp;</td>
+        <td valign="top" colspan="5" width="85%"
+        bgcolor="#008080"><p align="center">To:</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#008080">From:</td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">T</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">value_type</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">const_reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">param_type</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">T</td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">value_type</td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">reference</td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">const_reference</td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">param_type</td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">?</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">N</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+    </tr>
+</table>
+
+<p>&nbsp;</p>
+
+<p>If T is an assignable type the following assignments are
+possible:</p>
+
+<table border="0" cellpadding="7" cellspacing="1" width="766">
+    <tr>
+        <td valign="top" width="17%">&nbsp;</td>
+        <td valign="top" colspan="5" width="85%"
+        bgcolor="#008080"><p align="center">To:</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#008080">From:</td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">T</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">value_type</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">const_reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">param_type</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">T</td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">value_type</td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">reference</td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">const_reference</td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0">param_type</td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">Y</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">-</p>
+        </td>
+    </tr>
+</table>
+
+<p>&nbsp;</p>
+
+<h3><a name="examples"></a>Examples</h3>
+
+<p>The following table shows the effect that call_traits has on
+various types, the table assumes that the compiler supports
+partial specialization: if it doesn't then all types behave in
+the same way as the entry for &quot;myclass&quot;, and
+call_traits can not be used with reference or array types.</p>
+
+<table border="0" cellpadding="7" cellspacing="1" width="766">
+    <tr>
+        <td valign="top" width="17%">&nbsp;</td>
+        <td valign="top" colspan="5" width="85%"
+        bgcolor="#008080"><p align="center">Call_traits type:</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#008080"><p
+        align="center">Original type T</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">value_type</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">const_reference</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">param_type</p>
+        </td>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">Applies to:</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">myclass</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">myclass</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">myclass&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        myclass&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">myclass
+        const&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All user
+        defined types.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">int</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int const</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All small
+        built-in types.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">int*</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int*</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int*&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int*const&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int* const</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All
+        pointer types.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All
+        reference types.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">const int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const
+        int&amp;</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All
+        constant-references.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">int[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int*</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">int(&amp;)[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int(&amp;)[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int*
+        const</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All array
+        types.</p>
+        </td>
+    </tr>
+    <tr>
+        <td valign="top" width="17%" bgcolor="#C0C0C0"><p
+        align="center">const int[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int*</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int(&amp;)[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int(&amp;)[3]</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">const int*
+        const</p>
+        </td>
+        <td valign="top" width="17%"><p align="center">All
+        constant-array types.</p>
+        </td>
+    </tr>
+</table>
+
+<p>&nbsp;</p>
+
+<h4>Example 1:</h4>
+
+<p>The following class is a trivial class that stores some type T
+by value (see the <a href="call_traits_test.cpp">call_traits_test.cpp</a>
+file), the aim is to illustrate how each of the available
+call_traits typedefs may be used:</p>
+
+<pre>template &lt;class T&gt;
+struct contained
+{
+   // define our typedefs first, arrays are stored by value
+   // so value_type is not the same as result_type:
+   typedef typename boost::call_traits&lt;T&gt;::param_type       param_type;
+   typedef typename boost::call_traits&lt;T&gt;::reference        reference;
+   typedef typename boost::call_traits&lt;T&gt;::const_reference  const_reference;
+   typedef T                                                value_type;
+   typedef typename boost::call_traits&lt;T&gt;::value_type       result_type;
+
+   // stored value:
+   value_type v_;
+   
+   // constructors:
+   contained() {}
+   contained(param_type p) : v_(p){}
+   // return byval:
+   result_type value() { return v_; }
+   // return by_ref:
+   reference get() { return v_; }
+   const_reference const_get()const { return v_; }
+   // pass value:
+   void call(param_type p){}
+
+};</pre>
+
+<h4><a name="refs"></a>Example 2 (the reference to reference
+problem):</h4>
+
+<p>Consider the definition of std::binder1st:</p>
+
+<pre>template &lt;class Operation&gt; 
+class binder1st : 
+   public unary_function&lt;typename Operation::second_argument_type, typename Operation::result_type&gt; 
+{ 
+protected: 
+   Operation op; 
+   typename Operation::first_argument_type value; 
+public: 
+   binder1st(const Operation&amp; x, const typename Operation::first_argument_type&amp; y); 
+   typename Operation::result_type operator()(const typename Operation::second_argument_type&amp; x) const; 
+}; </pre>
+
+<p>Now consider what happens in the relatively common case that
+the functor takes its second argument as a reference, that
+implies that <code>Operation::second_argument_type</code> is a
+reference type, <code>operator()</code> will now end up taking a
+reference to a reference as an argument, and that is not
+currently legal. The solution here is to modify <code>operator()</code>
+to use call_traits:</p>
+
+<pre>typename Operation::result_type operator()(typename call_traits&lt;typename Operation::second_argument_type&gt;::param_type x) const;</pre>
+
+<p>Now in the case that <code>Operation::second_argument_type</code>
+is a reference type, the argument is passed as a reference, and
+the no &quot;reference to reference&quot; occurs.</p>
+
+<h4><a name="ex3"></a>Example 3 (the make_pair problem):</h4>
+
+<p>If we pass the name of an array as one (or both) arguments to <code>std::make_pair</code>,
+then template argument deduction deduces the passed parameter as
+&quot;const reference to array of T&quot;, this also applies to
+string literals (which are really array literals). Consequently
+instead of returning a pair of pointers, it tries to return a
+pair of arrays, and since an array type is not copy-constructible
+the code fails to compile. One solution is to explicitly cast the
+arguments to make_pair to pointers, but call_traits provides a
+better (i.e. automatic) solution (and one that works safely even
+in generic code where the cast might do the wrong thing):</p>
+
+<pre>template &lt;class T1, class T2&gt;
+std::pair&lt;
+   typename boost::call_traits&lt;T1&gt;::value_type, 
+   typename boost::call_traits&lt;T2&gt;::value_type&gt; 
+      make_pair(const T1&amp; t1, const T2&amp; t2)
+{
+   return std::pair&lt;
+      typename boost::call_traits&lt;T1&gt;::value_type, 
+      typename boost::call_traits&lt;T2&gt;::value_type&gt;(t1, t2);
+}</pre>
+
+<p>Here, the deduced argument types will be automatically
+degraded to pointers if the deduced types are arrays, similar
+situations occur in the standard binders and adapters: in
+principle in any function that &quot;wraps&quot; a temporary
+whose type is deduced. Note that the function arguments to
+make_pair are not expressed in terms of call_traits: doing so
+would prevent template argument deduction from functioning.</p>
+
+<h4><a name="ex4"></a>Example 4 (optimising fill):</h4>
+
+<p>The call_traits template will &quot;optimize&quot; the passing
+of a small built-in type as a function parameter, this mainly has
+an effect when the parameter is used within a loop body. In the
+following example (see <a
+href="../type_traits/examples/fill_example.cpp">fill_example.cpp</a>),
+a version of std::fill is optimized in two ways: if the type
+passed is a single byte built-in type then std::memset is used to
+effect the fill, otherwise a conventional C++ implemention is
+used, but with the passed parameter &quot;optimized&quot; using
+call_traits:</p>
+
+<pre>namespace detail{
+
+template &lt;bool opt&gt;
+struct filler
+{
+   template &lt;typename I, typename T&gt;
+   static void do_fill(I first, I last, typename boost::call_traits&lt;T&gt;::param_type val)
+   {
+      while(first != last)
+      {
+         *first = val;
+         ++first;
+      }
+   }
+};
+
+template &lt;&gt;
+struct filler&lt;true&gt;
+{
+   template &lt;typename I, typename T&gt;
+   static void do_fill(I first, I last, T val)
+   {
+      memset(first, val, last-first);
+   }
+};
+
+}
+
+template &lt;class I, class T&gt;
+inline void fill(I first, I last, const T&amp; val)
+{
+   enum{ can_opt = boost::is_pointer&lt;I&gt;::value
+                   &amp;&amp; boost::is_arithmetic&lt;T&gt;::value
+                   &amp;&amp; (sizeof(T) == 1) };
+   typedef detail::filler&lt;can_opt&gt; filler_t;
+   filler_t::template do_fill&lt;I,T&gt;(first, last, val);
+}</pre>
+
+<p>Footnote: the reason that this is &quot;optimal&quot; for
+small built-in types is that with the value passed as &quot;T
+const&quot; instead of &quot;const T&amp;&quot; the compiler is
+able to tell both that the value is constant and that it is free
+of aliases. With this information the compiler is able to cache
+the passed value in a register, unroll the loop, or use
+explicitly parallel instructions: if any of these are supported.
+Exactly how much mileage you will get from this depends upon your
+compiler - we could really use some accurate benchmarking
+software as part of boost for cases like this.</p>
+
+<p>Note that the function arguments to fill are not expressed in
+terms of call_traits: doing so would prevent template argument
+deduction from functioning. Instead fill acts as a &quot;thin
+wrapper&quot; that is there to perform template argument
+deduction, the compiler will optimise away the call to fill all
+together, replacing it with the call to filler&lt;&gt;::do_fill,
+which does use call_traits.</p>
+
+<h3>Rationale</h3>
+
+<p>The following notes are intended to briefly describe the
+rational behind choices made in call_traits.</p>
+
+<p>All user-defined types follow &quot;existing practice&quot;
+and need no comment.</p>
+
+<p>Small built-in types (what the standard calls fundamental
+types [3.9.1]) differ from existing practice only in the <i>param_type</i>
+typedef. In this case passing &quot;T const&quot; is compatible
+with existing practice, but may improve performance in some cases
+(see <a href="#ex4">Example 4</a>), in any case this should never
+be any worse than existing practice.</p>
+
+<p>Pointers follow the same rational as small built-in types.</p>
+
+<p>For reference types the rational follows <a href="#refs">Example
+2</a> - references to references are not allowed, so the
+call_traits members must be defined such that these problems do
+not occur. There is a proposal to modify the language such that
+&quot;a reference to a reference is a reference&quot; (issue #106,
+submitted by Bjarne Stroustrup), call_traits&lt;T&gt;::value_type
+and call_traits&lt;T&gt;::param_type both provide the same effect
+as that proposal, without the need for a language change (in
+other words it's a workaround).</p>
+
+<p>For array types, a function that takes an array as an argument
+will degrade the array type to a pointer type: this means that
+the type of the actual parameter is different from its declared
+type, something that can cause endless problems in template code
+that relies on the declared type of a parameter. For example:</p>
+
+<pre>template &lt;class T&gt;
+struct A
+{
+   void foo(T t);
+};</pre>
+
+<p><font face="Times New Roman">In this case if we instantiate
+A&lt;int[2]&gt; then the declared type of the parameter passed to
+member function foo is int[2], but it's actual type is const int*,
+if we try to use the type T within the function body, then there
+is a strong likelyhood that our code will not compile:</font></p>
+
+<pre>template &lt;class T&gt;
+void A&lt;T&gt;::foo(T t)
+{
+   T dup(t); // doesn't compile for case that T is an array.
+}</pre>
+
+<p>By using call_traits the degradation from array to pointer is
+explicit, and the type of the parameter is the same as it's
+declared type:</p>
+
+<pre>template &lt;class T&gt;
+struct A
+{
+   void foo(typename call_traits&lt;T&gt;::value_type t);
+};
+
+template &lt;class T&gt;
+void A&lt;T&gt;::foo(typename call_traits&lt;T&gt;::value_type t)
+{
+   typename call_traits&lt;T&gt;::value_type dup(t); // OK even if T is an array type.
+}</pre>
+
+<p>For value_type (return by value), again only a pointer may be
+returned, not a copy of the whole array, and again call_traits
+makes the degradation explicit. The value_type member is useful
+whenever an array must be explicitly degraded to a pointer - <a
+href="#ex3">Example 3</a> provides the test case (Footnote: the
+array specialisation for call_traits is the least well understood
+of all the call_traits specialisations, if the given semantics
+cause specific problems for you, or don't solve a particular
+array-related problem, then I would be interested to hear about
+it. Most people though will probably never need to use this
+specialisation).</p>
+
 <hr>
-<tt>
-   Boost.CallTraits<br>
-   <br>
-   Distributed under the Boost Software License, Version 1.0.
-   (See accompanying file LICENSE_1_0.txt or copy at
-   <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-   <br>
-</tt>
+
+<p>Revised 01 September 2000</p>
+
+   <p>
+      Copyright 2000 Steve Cleary, Beman Dawes, Howard
+      Hinnant and John Maddock. <br/>
+      Use, modification and distribution are subject to the
+      Boost Software License, Version 1.0.
+      (See accompanying file LICENSE_1_0.txt
+      or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
+         http://www.boost.org/LICENSE_1_0.txt
+      </a>).
+   </p>
 </body>
 </html>
+

call_traits_test.cpp

@@ -201,7 +201,7 @@ struct comparible_UDT
       i_ = other.i_;
       return *this;
    }
-   bool operator == (const comparible_UDT& v) const { return v.i_ == i_; }
+   bool operator == (const comparible_UDT& v){ return v.i_ == i_; }
 };
 
 int main()
@@ -376,7 +376,7 @@ void call_traits_test<T, true>::assert_construct(typename boost::call_traits<T>:
    reference r = t;
    const_reference cr = t;
    reference r2 = r;
-   #ifndef BOOST_BORLANDC
+   #ifndef __BORLANDC__
    // C++ Builder buglet:
    const_reference cr2 = r;
    #endif
@@ -393,7 +393,7 @@ void call_traits_test<T, true>::assert_construct(typename boost::call_traits<T>:
    unused_variable(v3);
    unused_variable(v4);
    unused_variable(v5);
-#ifndef BOOST_BORLANDC
+#ifndef __BORLANDC__
    unused_variable(r2);
    unused_variable(cr2);
 #endif

checked_delete.html

@@ -1,19 +1,122 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html>
-<head>
-    <title>Boost.Utility</title>
-    <meta http-equiv="refresh" content="0; URL=../core/doc/html/core/checked_delete.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="../core/doc/html/core/checked_delete.html">../core/doc/html/core/checked_delete.html</a>
-<hr>
-<tt>
-    Boost.Utility<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
-</body>
+	<head>
+		<title>Boost: checked_delete.hpp documentation</title>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+	</head>
+	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
+		<table border="0" width="100%">
+			<tr>
+				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
+				</td>
+				<td align="center">
+					<h1>checked_delete.hpp</h1>
+				</td>
+			</tr>
+			<tr>
+				<td colspan="2" height="64">&nbsp;</td>
+			</tr>
+		</table>
+		<p>
+			The header <STRONG>&lt;boost/checked_delete.hpp&gt;</STRONG> defines two 
+			function templates, <STRONG>checked_delete</STRONG> and <STRONG>checked_array_delete</STRONG>, 
+			and two class templates, <STRONG>checked_deleter</STRONG> and <STRONG>checked_array_deleter</STRONG>.
+		</p>
+		<P>The C++ Standard allows, in 5.3.5/5, pointers to incomplete class types to be 
+			deleted with a <EM>delete-expression</EM>. When the class has a non-trivial 
+			destructor, or a class-specific operator delete, the behavior is undefined. 
+			Some compilers issue a warning when an incomplete type is deleted, but 
+			unfortunately, not all do, and programmers sometimes ignore or disable 
+			warnings.</P>
+		<P>A particularly troublesome case is when a smart pointer's destructor, such as <STRONG>
+				boost::scoped_ptr&lt;T&gt;::~scoped_ptr</STRONG>, is instantiated with an 
+			incomplete type. This can often lead to silent, hard to track failures.</P>
+		<P>The supplied function and class templates can be used to prevent these problems, 
+			as they require a complete type, and cause a compilation error otherwise.</P>
+		<h3><a name="Synopsis">Synopsis</a></h3>
+		<pre>
+namespace boost
+{
+
+template&lt;class T&gt; void checked_delete(T * p);
+template&lt;class T&gt; void checked_array_delete(T * p);
+template&lt;class T&gt; struct checked_deleter;
+template&lt;class T&gt; struct checked_array_deleter;
+
+}
+</pre>
+		<h3>checked_delete</h3>
+		<h4><a name="checked_delete">template&lt;class T&gt; void checked_delete(T * p);</a></h4>
+		<blockquote>
+			<p>
+				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete p</tt>
+				must be well-formed.
+			</p>
+			<p>
+				<b>Effects:</b> <tt>delete p;</tt>
+			</p>
+		</blockquote>
+		<h3>checked_array_delete</h3>
+		<h4><a name="checked_array_delete">template&lt;class T&gt; void checked_array_delete(T 
+				* p);</a></h4>
+		<blockquote>
+			<p>
+				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete [] p</tt>
+				must be well-formed.
+			</p>
+			<p>
+				<b>Effects:</b> <tt>delete [] p;</tt>
+			</p>
+		</blockquote>
+		<h3>checked_deleter</h3>
+		<pre>
+template&lt;class T&gt; struct checked_deleter
+{
+    typedef void result_type;
+    typedef T * argument_type;
+    void operator()(T * p) const;
+};
+</pre>
+		<h4>void checked_deleter&lt;T&gt;::operator()(T * p) const;</h4>
+		<blockquote>
+			<p>
+				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete p</tt>
+				must be well-formed.
+			</p>
+			<p>
+				<b>Effects:</b> <tt>delete p;</tt>
+			</p>
+		</blockquote>
+		<h3>checked_array_deleter</h3>
+		<pre>
+template&lt;class T&gt; struct checked_array_deleter
+{
+    typedef void result_type;
+    typedef T * argument_type;
+    void operator()(T * p) const;
+};
+</pre>
+		<h4>void checked_array_deleter&lt;T&gt;::operator()(T * p) const;</h4>
+		<blockquote>
+			<p>
+				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete [] p</tt>
+				must be well-formed.
+			</p>
+			<p>
+				<b>Effects:</b> <tt>delete [] p;</tt>
+			</p>
+		</blockquote>
+		<h3><a name="Acknowledgements">Acknowledgements</a></h3>
+		<p>
+			The function templates <STRONG>checked_delete</STRONG> and <STRONG>checked_array_delete</STRONG>
+			were originally part of <STRONG>&lt;boost/utility.hpp&gt;</STRONG>, and the 
+			documentation acknowledged Beman Dawes, Dave Abrahams, Vladimir Prus, Rainer 
+			Deyke, John Maddock, and others as contributors.
+		</p>
+		<p>
+			<br>
+			<small>Copyright <20> 2002 by Peter Dimov. Distributed under the Boost Software License, Version 
+				1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or 
+				copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
+	</body>
 </html>

checked_delete_test.cpp

@@ -0,0 +1,28 @@
+//  Boost checked_delete test program  ---------------------------------------//
+
+//  Copyright Beman Dawes 2001.  Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/utility for documentation.
+
+//  Revision History
+//  21 May 01  Initial version (Beman Dawes)
+
+#include <boost/checked_delete.hpp>  // for checked_delete
+
+//  This program demonstrates compiler errors when trying to delete an
+//  incomplete type.
+
+namespace
+{
+    class Incomplete;
+}
+
+int main()
+{
+    Incomplete * p = 0;
+    boost::checked_delete(p);          // should cause compile time error
+    boost::checked_array_delete(p);    // should cause compile time error
+    return 0;
+}   // main

compressed_pair.htm

@@ -1,19 +1,76 @@
 <html>
-<head>
-    <title>Boost.Utility</title>
-    <meta http-equiv="refresh" content="0; URL=./doc/html/utility/utilities/compressed_pair.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="./doc/html/utility/utilities/compressed_pair.html">./doc/html/utility/utilities/compressed_pair.html</a>
-<hr>
-<tt>
-    Boost.Utility<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
-</body>
+   <head>
+      <title>Header </title>
+      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+      <meta name="Template" content="C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\html.dot">
+      <meta name="GENERATOR" content="Microsoft FrontPage 5.0">
+      <boostcompressed_pair.hpp>
+   </head>
+   <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080">
+      <h2><img src="../../boost.png" width="276" height="86">Header &lt;<a href="../../boost/detail/compressed_pair.hpp">boost/compressed_pair.hpp</a>&gt;</h2>
+      <p>All of the contents of &lt;boost/compressed_pair.hpp&gt; are defined inside 
+         namespace boost.</p>
+      <p>The class compressed pair is very similar to std::pair, but if either of the 
+         template arguments are empty classes, then the "empty base-class optimisation" 
+         is applied to compress the size of the pair.</p>
+      <pre>template &lt;class T1, class T2&gt;
+class compressed_pair
+{
+public:
+	typedef T1                                                 first_type;
+	typedef T2                                                 second_type;
+	typedef typename call_traits&lt;first_type&gt;::param_type       first_param_type;
+	typedef typename call_traits&lt;second_type&gt;::param_type      second_param_type;
+	typedef typename call_traits&lt;first_type&gt;::reference        first_reference;
+	typedef typename call_traits&lt;second_type&gt;::reference       second_reference;
+	typedef typename call_traits&lt;first_type&gt;::const_reference  first_const_reference;
+	typedef typename call_traits&lt;second_type&gt;::const_reference second_const_reference;
+
+	         compressed_pair() : base() {}
+	         compressed_pair(first_param_type x, second_param_type y);
+	explicit compressed_pair(first_param_type x);
+	explicit compressed_pair(second_param_type y);
+
+	compressed_pair&amp; operator=(const compressed_pair&amp;);
+
+	first_reference       first();
+	first_const_reference first() const;
+
+	second_reference       second();
+	second_const_reference second() const;
+
+	void swap(compressed_pair&amp; y);
+};</pre>
+      <p>The two members of the pair can be accessed using the member functions first() 
+         and second(). Note that not all member functions can be instantiated for all 
+         template parameter types. In particular compressed_pair can be instantiated for 
+         reference and array types, however in these cases the range of constructors 
+         that can be used are limited. If types T1 and T2 are the same type, then there 
+         is only one version of the single-argument constructor, and this constructor 
+         initialises both values in the pair to the passed value.</p>
+      <P>Note that if either member is a POD type, then that member is not 
+         zero-initialized by the compressed_pair default constructor: it's up to you to 
+         supply an initial value for these types if you want them to have a default 
+         value.</P>
+      <p>Note that compressed_pair can not be instantiated if either of the template 
+         arguments is a union type, unless there is compiler support for 
+         boost::is_union, or if boost::is_union is specialised for the union type.</p>
+      <p>Finally, a word of caution for Visual C++ 6 users: if either argument is an 
+         empty type, then assigning to that member will produce memory corruption, 
+         unless the empty type has a "do nothing" assignment operator defined. This is 
+         due to a bug in the way VC6 generates implicit assignment operators.</p>
+      <h3>Acknowledgements</h3>
+      <p>Based on contributions by Steve Cleary, Beman Dawes, Howard Hinnant and John 
+         Maddock.</p>
+      <p>Maintained by <a href="mailto:john@johnmaddock.co.uk">John Maddock</a>, the 
+         latest version of this file can be found at <a href="http://www.boost.org">www.boost.org</a>, 
+         and the boost discussion list at <a href="http://www.yahoogroups.com/list/boost">www.yahoogroups.com/list/boost</a>.</p>
+      <hr>
+      <p>Revised
+      <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->07 November 2007<!--webbot bot="Timestamp" endspan i-checksum="40338" --></p>
+      <p><EFBFBD> Copyright Beman Dawes, 2000.</p>
+<p>Distributed under the Boost Software License, Version 1.0. See
+<a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
+
+   </body>
 </html>

compressed_pair_test.cpp

@@ -14,7 +14,7 @@
 #include <cassert>
 
 #include <boost/compressed_pair.hpp>
-#include <boost/core/lightweight_test.hpp>
+#include <boost/test/test_tools.hpp>
 
 using namespace boost;
 
@@ -79,47 +79,47 @@ void compressed_pair_tester<T1, T2>::test(first_param_type p1, second_param_type
    // first param construct:
    boost::compressed_pair<T1,T2> cp2(p1);
    cp2.second() = p2;
-   BOOST_TEST(cp2.first() == p1);
-   BOOST_TEST(cp2.second() == p2);
+   BOOST_CHECK(cp2.first() == p1);
+   BOOST_CHECK(cp2.second() == p2);
    // second param construct:
    boost::compressed_pair<T1,T2> cp3(p2);
    cp3.first() = p1;
-   BOOST_TEST(cp3.second() == p2);
-   BOOST_TEST(cp3.first() == p1);
+   BOOST_CHECK(cp3.second() == p2);
+   BOOST_CHECK(cp3.first() == p1);
    // both param construct:
    boost::compressed_pair<T1,T2> cp4(p1, p2);
-   BOOST_TEST(cp4.first() == p1);
-   BOOST_TEST(cp4.second() == p2);
+   BOOST_CHECK(cp4.first() == p1);
+   BOOST_CHECK(cp4.second() == p2);
    boost::compressed_pair<T1,T2> cp5(p3, p4);
-   BOOST_TEST(cp5.first() == p3);
-   BOOST_TEST(cp5.second() == p4);
+   BOOST_CHECK(cp5.first() == p3);
+   BOOST_CHECK(cp5.second() == p4);
    // check const members:
    const boost::compressed_pair<T1,T2>& cpr1 = cp4;
-   BOOST_TEST(cpr1.first() == p1);
-   BOOST_TEST(cpr1.second() == p2);
+   BOOST_CHECK(cpr1.first() == p1);
+   BOOST_CHECK(cpr1.second() == p2);
 
    // copy construct:
    boost::compressed_pair<T1,T2> cp6(cp4);
-   BOOST_TEST(cp6.first() == p1);
-   BOOST_TEST(cp6.second() == p2);
+   BOOST_CHECK(cp6.first() == p1);
+   BOOST_CHECK(cp6.second() == p2);
    // assignment:
    cp1 = cp4;
-   BOOST_TEST(cp1.first() == p1);
-   BOOST_TEST(cp1.second() == p2);
+   BOOST_CHECK(cp1.first() == p1);
+   BOOST_CHECK(cp1.second() == p2);
    cp1 = cp5;
-   BOOST_TEST(cp1.first() == p3);
-   BOOST_TEST(cp1.second() == p4);
+   BOOST_CHECK(cp1.first() == p3);
+   BOOST_CHECK(cp1.second() == p4);
    // swap:
    cp4.swap(cp5);
-   BOOST_TEST(cp4.first() == p3);
-   BOOST_TEST(cp4.second() == p4);
-   BOOST_TEST(cp5.first() == p1);
-   BOOST_TEST(cp5.second() == p2);
+   BOOST_CHECK(cp4.first() == p3);
+   BOOST_CHECK(cp4.second() == p4);
+   BOOST_CHECK(cp5.first() == p1);
+   BOOST_CHECK(cp5.second() == p2);
    swap(cp4,cp5);
-   BOOST_TEST(cp4.first() == p1);
-   BOOST_TEST(cp4.second() == p2);
-   BOOST_TEST(cp5.first() == p3);
-   BOOST_TEST(cp5.second() == p4);
+   BOOST_CHECK(cp4.first() == p1);
+   BOOST_CHECK(cp4.second() == p2);
+   BOOST_CHECK(cp5.first() == p3);
+   BOOST_CHECK(cp5.second() == p4);
 }
 
 //
@@ -148,20 +148,20 @@ void compressed_pair_reference_tester<T1, T2>::test(first_param_type p1, second_
 #endif
    // both param construct:
    boost::compressed_pair<T1,T2> cp4(p1, p2);
-   BOOST_TEST(cp4.first() == p1);
-   BOOST_TEST(cp4.second() == p2);
+   BOOST_CHECK(cp4.first() == p1);
+   BOOST_CHECK(cp4.second() == p2);
    boost::compressed_pair<T1,T2> cp5(p3, p4);
-   BOOST_TEST(cp5.first() == p3);
-   BOOST_TEST(cp5.second() == p4);
+   BOOST_CHECK(cp5.first() == p3);
+   BOOST_CHECK(cp5.second() == p4);
    // check const members:
    const boost::compressed_pair<T1,T2>& cpr1 = cp4;
-   BOOST_TEST(cpr1.first() == p1);
-   BOOST_TEST(cpr1.second() == p2);
+   BOOST_CHECK(cpr1.first() == p1);
+   BOOST_CHECK(cpr1.second() == p2);
 
    // copy construct:
    boost::compressed_pair<T1,T2> cp6(cp4);
-   BOOST_TEST(cp6.first() == p1);
-   BOOST_TEST(cp6.second() == p2);
+   BOOST_CHECK(cp6.first() == p1);
+   BOOST_CHECK(cp6.second() == p2);
    // assignment:
    // VC6 bug:
    // When second() is an empty class, VC6 performs the
@@ -174,8 +174,8 @@ void compressed_pair_reference_tester<T1, T2>::test(first_param_type p1, second_
    // settings - some generate the problem others do not.
    cp4.first() = p3;
    cp4.second() = p4;
-   BOOST_TEST(cp4.first() == p3);
-   BOOST_TEST(cp4.second() == p4);
+   BOOST_CHECK(cp4.first() == p3);
+   BOOST_CHECK(cp4.second() == p4);
 }
 //
 // supplimentary tests for case where first arg only is a reference type:
@@ -199,8 +199,8 @@ void compressed_pair_reference1_tester<T1, T2>::test(first_param_type p1, second
    // first param construct:
    boost::compressed_pair<T1,T2> cp2(p1);
    cp2.second() = p2;
-   BOOST_TEST(cp2.first() == p1);
-   BOOST_TEST(cp2.second() == p2);
+   BOOST_CHECK(cp2.first() == p1);
+   BOOST_CHECK(cp2.second() == p2);
 #endif
 }
 //
@@ -225,8 +225,8 @@ void compressed_pair_reference2_tester<T1, T2>::test(first_param_type p1, second
    // second param construct:
    boost::compressed_pair<T1,T2> cp3(p2);
    cp3.first() = p1;
-   BOOST_TEST(cp3.second() == p2);
-   BOOST_TEST(cp3.first() == p1);
+   BOOST_CHECK(cp3.second() == p2);
+   BOOST_CHECK(cp3.first() == p1);
 #endif
 }
 
@@ -253,14 +253,14 @@ void compressed_pair_array1_tester<T1, T2>::test(first_param_type p1, second_par
    // second param construct:
    boost::compressed_pair<T1,T2> cp3(p2);
    cp3.first()[0] = p1[0];
-   BOOST_TEST(cp3.second() == p2);
-   BOOST_TEST(cp3.first()[0] == p1[0]);
+   BOOST_CHECK(cp3.second() == p2);
+   BOOST_CHECK(cp3.first()[0] == p1[0]);
    // check const members:
    const boost::compressed_pair<T1,T2>& cpr1 = cp3;
-   BOOST_TEST(cpr1.first()[0] == p1[0]);
-   BOOST_TEST(cpr1.second() == p2);
+   BOOST_CHECK(cpr1.first()[0] == p1[0]);
+   BOOST_CHECK(cpr1.second() == p2);
 
-   BOOST_TEST(sizeof(T1) == sizeof(cp1.first()));
+   BOOST_CHECK(sizeof(T1) == sizeof(cp1.first()));
 }
 
 template <class T1, class T2>
@@ -283,14 +283,14 @@ void compressed_pair_array2_tester<T1, T2>::test(first_param_type p1, second_par
    // first param construct:
    boost::compressed_pair<T1,T2> cp2(p1);
    cp2.second()[0] = p2[0];
-   BOOST_TEST(cp2.first() == p1);
-   BOOST_TEST(cp2.second()[0] == p2[0]);
+   BOOST_CHECK(cp2.first() == p1);
+   BOOST_CHECK(cp2.second()[0] == p2[0]);
    // check const members:
    const boost::compressed_pair<T1,T2>& cpr1 = cp2;
-   BOOST_TEST(cpr1.first() == p1);
-   BOOST_TEST(cpr1.second()[0] == p2[0]);
+   BOOST_CHECK(cpr1.first() == p1);
+   BOOST_CHECK(cpr1.second()[0] == p2[0]);
 
-   BOOST_TEST(sizeof(T2) == sizeof(cp1.second()));
+   BOOST_CHECK(sizeof(T2) == sizeof(cp1.second()));
 }
 
 template <class T1, class T2>
@@ -312,18 +312,18 @@ void compressed_pair_array_tester<T1, T2>::test(first_param_type p1, second_para
    boost::compressed_pair<T1,T2> cp1;
    cp1.first()[0] = p1[0];
    cp1.second()[0] = p2[0];
-   BOOST_TEST(cp1.first()[0] == p1[0]);
-   BOOST_TEST(cp1.second()[0] == p2[0]);
+   BOOST_CHECK(cp1.first()[0] == p1[0]);
+   BOOST_CHECK(cp1.second()[0] == p2[0]);
    // check const members:
    const boost::compressed_pair<T1,T2>& cpr1 = cp1;
-   BOOST_TEST(cpr1.first()[0] == p1[0]);
-   BOOST_TEST(cpr1.second()[0] == p2[0]);
+   BOOST_CHECK(cpr1.first()[0] == p1[0]);
+   BOOST_CHECK(cpr1.second()[0] == p2[0]);
 
-   BOOST_TEST(sizeof(T1) == sizeof(cp1.first()));
-   BOOST_TEST(sizeof(T2) == sizeof(cp1.second()));
+   BOOST_CHECK(sizeof(T1) == sizeof(cp1.first()));
+   BOOST_CHECK(sizeof(T2) == sizeof(cp1.second()));
 }
 
-int main()
+int test_main(int, char *[])
 {
    // declare some variables to pass to the tester:
    non_empty1 ne1(2);
@@ -383,5 +383,13 @@ int main()
    compressed_pair_array2_tester<empty_POD_UDT,non_empty2[2]>::test(e1, nea3, e1, nea4);
    // T1 == T2, both non-empty
    compressed_pair_array_tester<non_empty1[2],non_empty1[2]>::test(nea1, nea1, nea2, nea2);
-   return boost::report_errors();
+   return 0;
 }
+
+
+unsigned int expected_failures = 0;
+
+
+
+
+

current_function.html

@@ -0,0 +1,36 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html>
+	<head>
+		<title>Boost: current_function.hpp documentation</title>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+	</head>
+	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
+		<table border="0" width="100%">
+			<tr>
+				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
+				</td>
+				<td align="center">
+					<h1>current_function.hpp</h1>
+				</td>
+			</tr>
+			<tr>
+				<td colspan="2" height="64">&nbsp;</td>
+			</tr>
+		</table>
+		<p>
+			The header <STRONG>&lt;boost/current_function.hpp&gt;</STRONG> defines a single 
+			macro, <STRONG>BOOST_CURRENT_FUNCTION</STRONG>,<STRONG> </STRONG>similar to the 
+			C99 predefined identifier <STRONG>__func__</STRONG>.
+		</p>
+		<P><STRONG>BOOST_CURRENT_FUNCTION</STRONG> expands to a string literal containing 
+			the (fully qualified, if possible) name of the enclosing function. If there is 
+			no enclosing function, the behavior is undefined.</P>
+		<p>Some compilers do not provide a way to obtain the name of the current enclosing 
+			function. On such compilers, the string literal has an unspecified value.</p>
+		<p>
+			<br>
+			<small>Copyright <20> 2002 by Peter Dimov. Distributed under the Boost Software License, Version 
+				1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or 
+				copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
+	</body>
+</html>

current_function_test.cpp

@@ -0,0 +1,40 @@
+#include <boost/config.hpp>
+
+#if defined(BOOST_MSVC)
+#pragma warning(disable: 4786)  // identifier truncated in debug info
+#pragma warning(disable: 4710)  // function not inlined
+#pragma warning(disable: 4711)  // function selected for automatic inline expansion
+#pragma warning(disable: 4514)  // unreferenced inline removed
+#endif
+
+//
+//  current_function_test.cpp - a test for boost/current_function.hpp
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/current_function.hpp>
+#include <boost/config.hpp>
+#include <cstdio>
+
+void message(char const * file, long line, char const * func, char const * msg)
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::printf;
+#endif
+
+    printf("%s(%ld): %s in function '%s'\n", file, line, msg, func);
+}
+
+#define MESSAGE(msg) message(__FILE__, __LINE__, BOOST_CURRENT_FUNCTION, msg)
+
+int main()
+{
+    MESSAGE("assertion failed");
+
+    return 0;
+}

doc/.gitignore

@@ -1,4 +0,0 @@
-html
-xml
-temp
-out.txt

doc/BOOST_BINARY.qbk

@@ -1,81 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[#sec:BOOST_BINARY]
-[section Binary Integer Literals]
-[/===============]
-
-[section Introduction]
-
-The macro `BOOST_BINARY` is used for the representation of binary
-literals. It takes as an argument a binary number arranged as an
-arbitrary amount of 1s and 0s in groupings of length 1 to 8, with
-groups separated by spaces. The macro serves as a replacement for
-[@https://en.cppreference.com/w/cpp/language/integer_literal binary integer literals],
-adopted in C++14.
-
-The type of the literal yielded is determined by the same rules as
-those of [@https://en.cppreference.com/w/cpp/language/integer_literal hex and octal literals].
-By implementation, this macro expands directly to an octal literal during preprocessing, so
-there is no overhead at runtime and the result is usable in any place that an octal literal
-would be.
-
-In order to directly support binary literals with suffixes,
-additional macros of the form `BOOST_BINARY_XXX` are also
-provided, where `XXX` is a standard integer suffix in all capital
-letters.
-
-In addition, LL and ULL suffixes may be used for representing
-`long long` and `unsigned long long` types in compilers which provide
-them as an extension.
-
-The `BOOST_BINARY` family of macros resides in the header
-[@../../../../boost/utility/binary.hpp <boost/utility/binary.hpp>].
-
-[endsect]
-
-[section Example]
-
-```
-void foo( int );
-
-void foo( unsigned long );
-
-void bar()
-{
-  int value1 = BOOST_BINARY( 100 111000 01 1 110 );
-
-  unsigned long value2 = BOOST_BINARY_UL( 100 001 ); // unsigned long
-
-  long long value3 = BOOST_BINARY_LL( 11 000 ); // long long if supported
-
-  __assert__(    BOOST_BINARY( 10010 )
-          &  BOOST_BINARY( 11000 )
-          == BOOST_BINARY( 10000 )
-        );
-
-  foo( BOOST_BINARY( 1010 ) ); // calls the first foo
-
-  foo( BOOST_BINARY_LU( 1010 ) ); // calls the second foo
-}
-```
-
-[endsect]
-
-[/===============]
-[xinclude tmp/boost_binary_reference.xml]
-[/===============]
-
-
-[section Acknowledgments]
-
-Contributed by Matt Calabrese.
-
-[endsect]
-
-[endsect]

doc/Jamfile.v2

@@ -1,413 +1,100 @@
+
 # Copyright John Maddock 2005. Use, modification, and distribution are
 # subject to the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
-import project ;
-import doxygen ;
-import quickbook ;
+project : requirements
+        # Path for links to Boost:
+        <xsl:param>boost.root=../../../..
 
-project boost/libs/utility/doc ;
+        # Some general style settings:
+        <xsl:param>table.footnote.number.format=1
+        <xsl:param>footnote.number.format=1
+
+        # HTML options first:
+        # Use graphics not text for navigation:
+        <xsl:param>navig.graphics=1
+       # PDF Options:
+        # TOC Generation: this is needed for FOP-0.9 and later:
+        <xsl:param>fop1.extensions=0
+        <xsl:param>xep.extensions=1
+        # TOC generation: this is needed for FOP 0.2, but must not be set to zero for FOP-0.9!
+        <xsl:param>fop.extensions=0
+        # No indent on body text:
+        <xsl:param>body.start.indent=0pt
+        # Margin size:
+        <xsl:param>page.margin.inner=0.5in
+        # Margin size:
+        <xsl:param>page.margin.outer=0.5in
+        # Paper type = A4
+        <xsl:param>paper.type=A4
+        # Yes, we want graphics for admonishments:
+        <xsl:param>admon.graphics=1
+        # Set this one for PDF generation *only*:
+        # default pnd graphics are awful in PDF form,
+        # better use SVG's instead:
+        <format>pdf:<xsl:param>admon.graphics.extension=".svg"
+        <format>pdf:<xsl:param>admon.graphics.path=$(boost-images)/
+        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/utility/doc/html
+;
+
+using quickbook ;
 
-path-constant INCLUDES : ../../.. ;
 path-constant boost-images : ../../../doc/src/images ;
 
-# Generate XML doxygen reference for base_from_member component in base_from_member_reference.xml
-doxygen base_from_member_reference
-  :
-    $(INCLUDES)/boost/utility/base_from_member.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=base_from_member.reference"
-  ;
-
-# Generate XML doxygen reference for boost_binary component in boost_binary_reference.xml
-doxygen boost_binary_reference
-  :
-    $(INCLUDES)/boost/utility/binary.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=boost_binary.reference"
-  ;
-
-# Generate XML doxygen reference for call_traits component in call_traits_reference.xml
-doxygen call_traits_reference
-  :
-    $(INCLUDES)/boost/call_traits.hpp
-    $(INCLUDES)/boost/detail/call_traits.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=call_traits.reference"
-  ;
-
-# Generate XML doxygen reference for compressed_pair component in compressed_pair_reference.xml
-doxygen compressed_pair_reference
-  :
-    $(INCLUDES)/boost/compressed_pair.hpp
-    $(INCLUDES)/boost/detail/compressed_pair.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=compressed_pair.reference"
-  ;
-
-# Generate XML doxygen reference for in_place_factory component in in_place_factory_reference.xml
-doxygen in_place_factory_reference
-  :
-    $(INCLUDES)/boost/utility/in_place_factory.hpp
-    $(INCLUDES)/boost/utility/typed_in_place_factory.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=in_place_factory.reference"
-  ;
-
-# Generate XML doxygen reference for operators component in operators_reference.xml
-# we skip operators_reference because operators.hpp is not adapted for doxygen
-
-# Generate XML doxygen reference for result_of component in result_of_reference.xml
-doxygen result_of_reference
-  :
-    $(INCLUDES)/boost/utility/result_of.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=result_of.reference"
-  ;
-
-# Generate XML doxygen reference for string_view component in string_view_reference.xml
-doxygen string_view_reference
-  :
-    $(INCLUDES)/boost/utility/string_view.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=string_view.reference"
-  ;
-
-# Generate XML doxygen reference for value_init component in value_init_reference.xml
-doxygen value_init_reference
-  :
-    $(INCLUDES)/boost/utility/value_init.hpp
-  :
-    <location>tmp
-    <doxygen:param>ENABLE_PREPROCESSING=YES
-    <doxygen:param>EXPAND_ONLY_PREDEF=YES
-    <doxygen:param>EXTRACT_ALL=NO
-    <doxygen:param>EXTRACT_PRIVATE=NO
-    <doxygen:param>HIDE_UNDOC_MEMBERS=YES
-    <doxygen:param>MACRO_EXPANSION=YES
-    <doxygen:param>"PREDEFINED= \\
-                    BOOST_UTILITY_DOCS \\
-                    BOOST_SYMBOL_VISIBLE= \\
-                    BOOST_FORCEINLINE=inline \\
-                    BOOST_GPU_ENABLED= \\
-                    BOOST_STATIC_ASSERT(x)= \\
-                    BOOST_STATIC_ASSERT_MSG(x,y)= \\
-                    BOOST_STATIC_CONSTANT(x,y)=\"static constexpr x y\" \\
-                    BOOST_RV_REF(x)=\"x&&\" \\
-                    BOOST_NESTED_TEMPLATE=template \\
-                    BOOST_CONSTEXPR=constexpr \\
-                    BOOST_CXX14_CONSTEXPR=constexpr \\
-                    BOOST_OPERATORS_CONSTEXPR=constexpr \\
-                    BOOST_CONSTEXPR_OR_CONST=constexpr \\
-                    BOOST_NOEXCEPT=noexcept \\
-                    BOOST_NOEXCEPT_IF(x)=noexcept(x) \\
-                    BOOST_NOEXCEPT_OR_NOTHROW=noexcept \\
-                    BOOST_COPY_ASSIGN_REF(x)=\"x const&\" \\
-                    BOOST_DEFAULTED_FUNCTION(x,y)=\"x = default;\" \\
-                    BOOST_DELETED_FUNCTION(x)=\"x = delete;\" \\
-                    BOOST_EXPLICIT_OPERATOR_BOOL()=\"explicit operator bool() const;\" \\
-                    BOOST_REF_CONST=const"
-    <doxygen:param>"EXCLUDE_SYMBOLS= \\
-                    detail \\
-                    F \\
-                    result_of_has_result_type_impl \\
-                    conditional \\
-                    boost::operators_impl"
-    <xsl:param>"boost.doxygen.reftitle=Reference"
-    <xsl:param>"boost.doxygen.refid=value_init.reference"
-  ;
-
-# Generate main.xml boostbook documentation from main.qbk quickbook documentation
-xml main : main.qbk ;
-
-# Generate ./html documentation from main.xml boostbook documentation
-# Each doxygen reference in quickbook files with [xinclude tmp/<component>_reference.xml] becomes:
-# <xi:include href="../../../../libs/utility/doc/tmp/<component>_reference.xml"/>
-# in boostbook.
-# All of these <xi:include> commands give the reference the id "utility.reference"
-boostbook standalone_main
+xml declval : declval.qbk ;
+boostbook standalone_declval
     :
-        main
+        declval
     :
-        <dependency>base_from_member_reference
-        <dependency>boost_binary_reference
-        <dependency>call_traits_reference
-        <dependency>compressed_pair_reference
-        <dependency>in_place_factory_reference
-        <dependency>result_of_reference
-        <dependency>string_view_reference
-        <dependency>value_init_reference
         # File name of HTML output:
-        # <xsl:param>root.filename=main
-        <xsl:param>boost.root=../../../..
-        <format>pdf:<xsl:param>"boost.url.prefix=http://www.boost.org/doc/libs/release/libs/utility/doc/html"
-        # How far down we chunk nested sections: no more than two so utility component pages include their reference
-        <xsl:param>chunk.section.depth=2 # 8
+        <xsl:param>root.filename=declval
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
         # Don't put the first section on the same page as the TOC:
-        <xsl:param>chunk.first.sections=1 # 1
-        # How far down sections get TOC: 2 so we show each Utility component in main page but no more than that
-        <xsl:param>toc.section.depth=2 # 2
-        # Max depth in each TOC: 2 so we show each Utility component in main page but no more than that
-        <xsl:param>toc.max.depth=2 # 2
-        # How far down we go with TOC's in main page: 2 so each Utility component page has 1 level TOC
-        <xsl:param>generate.section.toc.level=2 # 2
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
      ;
 
-###############################################################################
-alias boostdoc ;
-explicit boostdoc ;
+xml string_ref : string_ref.qbk ;
+boostbook standalone_string_ref
+    :
+        string_ref
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=string_ref
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;
 
-alias boostrelease : standalone_main ;
-explicit boostrelease ;
+xml explicit_operator_bool : explicit_operator_bool.qbk ;
+boostbook standalone_explicit_operator_bool
+    :
+        explicit_operator_bool
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=explicit_operator_bool
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;

doc/base_from_member.qbk

@@ -1,376 +0,0 @@
-[/
-  Copyright 2001, 2003, 2004, 2012 Daryle Walker.
-  Copyright (c) 2021, Alan Freitas
-
-  Distributed under the Boost Software License, Version 1.0.
-
-  See accompanying file LICENSE_1_0.txt
-  or copy at http://boost.org/LICENSE_1_0.txt
-]
-
-[section:base_from_member Base from Member]
-[block'''<?dbhtml stop-chunking?>''']
-
-[section Introduction]
-
-The class templates __base_from_member__ support the base-from-member idiom.
-When developing a class, sometimes a base class needs to be initialized
-with a member of the current class. As a na\u00EFve example:
-
-```
-#include <streambuf>  /* for std::streambuf */
-#include <ostream>    /* for std::ostream */
-
-class fdoutbuf
-  : public __std_streambuf__
-{
-public:
-    explicit fdoutbuf( int fd );
-    //...
-};
-
-class fdostream
-  : public __std_ostream__
-{
-protected:
-    fdoutbuf buf;
-public:
-    explicit fdostream( int fd )
-      : buf( fd ), __std_ostream__( &buf ) {}
-    //...
-};
-```
-
-This is undefined because C++'s initialization order mandates that the base
-class is initialized before the member it uses. [@http://www.moocat.org R.
-Samuel Klatchko] developed a way around this by using the initialization
-order in his favor. Base classes are initialized in order of declaration, so
-moving the desired member to another base class, that is initialized before
-the desired base class, can ensure proper initialization.
-
-A custom base class can be made for this idiom:
-
-    #include <streambuf>  /* for std::streambuf */
-    #include <ostream>    /* for std::ostream */
-
-    class fdoutbuf
-      : public __std_streambuf__
-    {
-    public:
-        explicit fdoutbuf( int fd );
-        //...
-    };
-
-    struct fdostream_pbase
-    {
-        fdoutbuf sbuffer;
-
-        explicit fdostream_pbase( int fd )
-          : sbuffer( fd ) {}
-    };
-
-    class fdostream
-      : private fdostream_pbase
-      , public __std_ostream__
-    {
-        typedef fdostream_pbase  pbase_type;
-        typedef __std_ostream__     base_type;
-
-    public:
-        explicit fdostream( int fd )
-          : pbase_type( fd ), base_type( &sbuffer ) {}
-        //...
-    };
-
-Other projects can use similar custom base classes. The technique is basic
-enough to make a template, with a sample template class in this library.
-The main template parameter is the type of the enclosed member. The
-template class has several (explicit) constructor member templates, which
-implicitly type the constructor arguments and pass them to the member. The
-template class uses implicit copy construction and assignment, cancelling
-them if the enclosed member is non-copyable.
-
-Manually coding a base class may be better if the construction and/or
-copying needs are too complex for the supplied template class, or if the
-compiler is not advanced enough to use it.
-
-Since base classes are unnamed, a class cannot have multiple (direct) base
-classes of the same type. The supplied template class has an extra template
-parameter, an integer, that exists solely to provide type differentiation.
-This parameter has a default value so a single use of a particular member
-type does not need to concern itself with the integer.
-
-
-[endsect]
-
-[section Synopsis]
-
-    #include <type_traits>  /* exposition only */
-
-    #ifndef BOOST_BASE_FROM_MEMBER_MAX_ARITY
-    #define BOOST_BASE_FROM_MEMBER_MAX_ARITY  10
-    #endif
-
-    template < typename MemberType, int UniqueID = 0 >
-    class __base_from_member__
-    {
-    protected:
-        MemberType  member;
-
-    #if ``['C++11 is in use]``
-        template< typename ...T >
-        explicit constexpr __base_from_member__( T&& ...x )
-         noexcept( __std_is_nothrow_constructible__<MemberType, T...>::value );
-    #else
-        __base_from_member__();
-
-        template< typename T1 >
-        explicit  __base_from_member__( T1 x1 );
-
-        template< typename T1, typename T2 >
-        __base_from_member__( T1 x1, T2 x2 );
-
-        //...
-
-        template< typename T1, typename T2, typename T3, typename T4,
-         typename T5, typename T6, typename T7, typename T8, typename T9,
-         typename T10 >
-        __base_from_member__( T1 x1, T2 x2, T3 x3, T4 x4, T5 x5, T6 x6, T7 x7,
-         T8 x8, T9 x9, T10 x10 );
-    #endif
-    };
-
-    template < typename MemberType, int UniqueID >
-    class __base_from_member__<MemberType&, UniqueID>
-    {
-    protected:
-        MemberType& member;
-
-        explicit constexpr __base_from_member__( MemberType& x )
-            noexcept;
-    };
-
-The class template has a first template parameter `MemberType` representing
-the type of the based-member. It has a last template parameter `UniqueID`,
-that is an `int`, to differentiate between multiple base classes that use
-the same based-member type. The last template parameter has a default value
-of zero if it is omitted. The class template has a protected data member
-called `member` that the derived class can use for later base classes or
-itself.
-
-If the appropriate features of C++11 are present, there will be a single
-constructor template. It implements ['perfect forwarding] to the best
-constructor call of `member` if any. The constructor template is marked
-both `constexpr` and `explicit`. The former will be ignored if the
-corresponding inner constructor call of `member` does not have the marker.
-The latter binds the other way; always taking effect, even when the inner
-constructor call does not have the marker. The constructor template
-propagates the `noexcept` status of the inner constructor call. The
-constructor template has a trailing parameter with a default value that
-disables the template when its signature is too close to the signatures of
-the automatically-defined non-template copy- and/or move-constructors of
-__base_from_member__.
-
-On earlier-standard compilers, there is a default constructor and several
-constructor member templates. These constructor templates can take as many
-arguments (currently up to ten) as possible and pass them to a constructor
-of the data member.
-
-A specialization for member references offers a single constructor taking
-a `MemberType&`, which is the only way to initialize a reference.
-
-Since C++ does not allow any way to explicitly state the template parameters
-of a templated constructor, make sure that the arguments are already close
-as possible to the actual type used in the data member's desired constructor.
-Explicit conversions may be necessary.
-
-The `BOOST_BASE_FROM_MEMBER_MAX_ARITY` macro constant specifies the maximum
-argument length for the constructor templates. The constant may be overridden
-if more (or less) argument configurations are needed. The constant may be
-read for code that is expandable like the class template and needs to
-maintain the same maximum size. (Example code would be a class that uses
-this class template as a base class for a member with a flexible set of
-constructors.) This constant is ignored when C++11 features are present.
-
-[endsect]
-
-[section Basic Usage]
-
-With the starting example, the `fdoutbuf` sub-object needs to be
-encapsulated in a base class that is inherited before `__std_ostream__`.
-
-```
-#include <boost/utility/base_from_member.hpp>
-
-#include <streambuf>  // for std::streambuf
-#include <ostream>    // for __std_ostream__
-
-class fdoutbuf
-  : public __std_streambuf__
-{
-public:
-    explicit fdoutbuf( int fd );
-    //...
-};
-
-class fdostream
-  : private __boost_base_from_member__<fdoutbuf>
-  , public __std_ostream__
-{
-    // Helper typedef's
-    typedef __boost_base_from_member__<fdoutbuf>  pbase_type;
-    typedef __std_ostream__                        base_type;
-
-public:
-    explicit fdostream( int fd )
-      : pbase_type( fd ), base_type( &member ){}
-    //...
-};
-```
-
-The base-from-member idiom is an implementation detail, so it should not
-be visible to the clients (or any derived classes) of `fdostream`. Due to
-the initialization order, the `fdoutbuf` sub-object will get initialized
-before the `__std_ostream__` sub-object does, making the former sub-object
-safe to use in the latter sub-object's construction. Since the `fdoutbuf`
-sub-object of the final type is the only sub-object with the name `member`
-that name can be used unqualified within the final class.
-
-[endsect]
-
-[section Multiple Sub-Objects]
-
-The base-from-member class templates should commonly involve only one
-base-from-member sub-object, usually for attaching a stream-buffer to an
-I/O stream. The next example demonstrates how to use multiple
-base-from-member sub-objects and the resulting qualification issues.
-
-```
-#include <boost/utility/base_from_member.hpp>
-
-#include <cstddef>  /* for NULL */
-
-struct an_int
-{
-    int  y;
-
-    an_int( float yf );
-};
-
-class switcher
-{
-public:
-    switcher();
-    switcher( double, int * );
-    //...
-};
-
-class flow_regulator
-{
-public:
-    flow_regulator( switcher &, switcher & );
-    //...
-};
-
-template < unsigned Size >
-class fan
-{
-public:
-    explicit fan( switcher );
-    //...
-};
-
-class system
-  : private __boost_base_from_member__<an_int>
-  , private __boost_base_from_member__<switcher>
-  , private __boost_base_from_member__<switcher, 1>
-  , private __boost_base_from_member__<switcher, 2>
-  , protected flow_regulator
-  , public fan<6>
-{
-    // Helper typedef's
-    typedef __boost_base_from_member__<an_int>       pbase0_type;
-    typedef __boost_base_from_member__<switcher>     pbase1_type;
-    typedef __boost_base_from_member__<switcher, 1>  pbase2_type;
-    typedef __boost_base_from_member__<switcher, 2>  pbase3_type;
-
-    typedef flow_regulator  base1_type;
-    typedef fan<6>          base2_type;
-
-public:
-    system( double x );
-    //...
-};
-
-system::system( double x )
-  : pbase0_type( 0.2 )
-  , pbase1_type()
-  , pbase2_type( -16, &this->pbase0_type::member.y )
-  , pbase3_type( x, static_cast<int *>(NULL) )
-  , base1_type( pbase3_type::member, pbase1_type::member )
-  , base2_type( pbase2_type::member )
-{
-    //...
-}
-```
-
-The final class has multiple sub-objects with the name `member`, so any
-use of that name needs qualification by a name of the appropriate base
-type. Using `typedef`s ease mentioning the base types.
-
-However, the fix introduces a new problem when a pointer is needed. Using the
-address operator with a sub-object qualified with its class's name results in a
-pointer-to-member (here, having a type of `an_int __boost_base_from_member__<an_int, 0>::*`)
-instead of a pointer to the member (having a type of `an_int*`).
-The new problem is fixed by qualifying the sub-object with `this->` and is needed
-just for pointers, and not for references or values.
-
-There are some argument conversions in the initialization. The constructor
-argument for `pbase0_type` is converted from `double` to `float`. The first
-constructor argument for `pbase2_type` is converted from `int` to `double`.
-
-The second constructor argument for `pbase3_type` is a special case of
-necessary conversion; all forms of the null-pointer literal in C++ (except
-`nullptr` from C++11) also look like compile-time integral expressions, so
-C++ always interprets such code as an integer when it has overloads that can
-take either an integer or a pointer.
-
-The last conversion is necessary for the compiler to call a constructor form
-with the exact pointer type used in `switcher`'s constructor. (If C++11's
-__nullptr__ is used, it still needs a conversion if multiple pointer types can
-be accepted in a constructor call but `__std_nullptr_t__` cannot.)
-
-[endsect]
-
-[/===============]
-[xinclude tmp/base_from_member_reference.xml]
-[/===============]
-
-[section Acknowledgments]
-
-Author: Walker, Daryle
-
-Copyright 2001, 2003, 2004, 2012 Daryle Walker
-
-* [@http://www.boost.org/people/ed_brey.htm Ed Brey] suggested some interface
-  changes.
-
-* [@http://www.moocat.org R. Samuel Klatchko] ([@mailto:rsk@moocat.org
-  rsk@moocat.org], [@mailto:rsk@brightmail.com rsk@brightmail.com]) invented
-  the idiom of how to use a class member for initializing a base class.
-
-* [@http://www.boost.org/people/dietmar_kuehl.htm Dietmar Kuehl] popularized the
-  base-from-member idiom in his [@http://www.informatik.uni-konstanz.de/~kuehl/c++/iostream/
-  IOStream example classes].
-
-* Jonathan Turkanis supplied an implementation of generating the constructor
-  templates that can be controlled and automated with macros. The
-  implementation uses the [@boost:/libs/preprocessor/index.html Preprocessor library].
-
-* [@http://www.boost.org/people/daryle_walker.html">Daryle Walker] started the
-  library. Contributed the test file [@../../../test/base_from_member_test.cpp
-  base_from_member_test.cpp].
-
-[endsect]
-
-[endsect]

doc/call_traits.qbk

@@ -1,443 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[section Call Traits]
-[/===============]
-
-[section Introduction]
-
-All of the contents of [@../../../../boost/call_traits.hpp `<boost/call_traits.hpp>`] are
-defined inside `namespace boost`.
-
-The template class __call_traits_T__ encapsulates the
-"best" method to pass a parameter of some type `T` to or
-from a function, and consists of a collection of `typedef`s defined
-as in the table below. The purpose of __call_traits__ is to ensure
-that problems like [link sec:refs "references to references"]
-never occur, and that parameters are passed in the most efficient
-manner possible, as in the [link sec:examples examples]. In each
-case, if your existing practice is to use the type defined on the
-left, then replace it with the __call_traits__ defined type on the
-right.
-
-Note that for compilers that do not support either partial
-specialization or member templates, no benefit will occur from
-using __call_traits__: the __call_traits__ defined types will always be
-the same as the existing practice in this case. In addition if
-only member templates and not partial template specialisation is
-support by the compiler (for example Visual C++ 6) then
-__call_traits__ cannot be used with array types, although it can still be
-used to solve the reference to reference problem.
-
-[table __call_traits__ types
-    [[Existing practice] [__call_traits__ equivalent] [Description] [Notes]]
-    [
-        [`T`
-
-          (return by value)
-        ]
-        [
-            __call_traits_T__`::value_type`
-        ]
-        [
-            Defines a type that represents the "value" of type `T`.
-
-            Use this for functions that return by value, or possibly for stored values of type `T`.
-        ]
-        [2]
-    ]
-    [
-        [`T&`
-
-          (return value)
-        ]
-        [
-            __call_traits_T__`::reference`
-        ]
-        [
-            Defines a type that represents a reference to type `T`.
-
-            Use for functions that would normally return a `T&`.
-        ]
-        [1]
-    ]
-    [
-        [`const T&`
-
-          (return value)
-        ]
-        [
-            __call_traits_T__`::const_reference`
-        ]
-        [
-            Defines a type that represents a constant reference to type `T`.
-
-            Use for functions that would normally return a `const T&`.
-        ]
-        [1]
-    ]
-    [
-        [`const T&`
-
-          (function parameter)
-        ]
-        [
-            __call_traits_T__`::param_type`
-        ]
-        [
-            Defines a type that represents the "best" way to pass a parameter of type `T` to a function.
-        ]
-        [1,3]
-    ]
-]
-
-Notes:
-
-# If `T` is already reference type, then __call_traits__ is
-        defined such that [link sec:refs "references to references"]
-        do not occur (requires partial specialization).
-# If `T` is an array type, then __call_traits__ defines `value_type`
-        as a "constant pointer to type" rather than an
-        "array of type" (requires partial specialization).
-        Note that if you are using `value_type` as a stored value
-        then this will result in storing a "constant pointer to
-        an array" rather than the array itself. This may or may
-        not be a good thing depending upon what you actually
-        need (in other words take care!).
-# If `T` is a small built in type or a pointer, then `param_type`
-        is defined as `T const`, instead of `T const&`. This can
-        improve the ability of the compiler to optimize loops in
-        the body of the function if they depend upon the passed
-        parameter, the semantics of the passed parameter is
-        otherwise unchanged (requires partial specialization).
-
-
-[endsect]
-[section Copy constructibility]
-
-The following table defines which __call_traits__ types can always
-be copy-constructed from which other types:
-
-[table Which __call_traits__ types can always be copy-constructed from which other types
-    [[]          [To `T`] [To `value_type`] [To `reference`] [To `const_reference`] [To `param_type`]]
-    [[From `T`]    [iff `T` is copy constructible] [iff `T` is copy constructible] [Yes] [Yes] [Yes]]
-    [[From `value_type`]    [iff `T` is copy constructible] [iff `T` is copy constructible] [No] [No] [Yes]]
-    [[From `reference`]    [iff `T` is copy constructible] [iff `T` is copy constructible] [Yes] [Yes] [Yes]]
-    [[From `const_reference`]    [iff `T` is copy constructible] [No] [No] [Yes] [Yes]]
-    [[From `param_type`]    [iff `T` is copy constructible] [iff `T` is copy constructible] [No] [No] [Yes]]
-]
-
-If `T` is an assignable type the following assignments are possible:
-
-[table Which __call_traits__ types are assignable from which other types
-    [[]          [To `T`] [To `value_type`] [To `reference`] [To `const_reference`] [To `param_type`]]
-    [[From `T`]    [Yes] [Yes] [-] [-] [-]]
-    [[From `value_type`]    [Yes] [Yes] [-] [-] [-]]
-    [[From `reference`]    [Yes] [Yes] [-] [-] [-]]
-    [[From `const_reference`]    [Yes] [Yes] [-] [-] [-]]
-    [[From `param_type`]    [Yes] [Yes] [-] [-] [-]]
-]
-[endsect]
-
-[#sec:examples]
-[section Examples]
-
-The following table shows the effect that __call_traits__ has on
-various types.
-
-[table Examples of __call_traits__ types
-    [[]          [__call_traits__::`value_type`] [__call_traits__::`reference`] [__call_traits__::`const_reference`] [__call_traits__::`param_type`] [Applies to:]]
-    [[From `my_class`]    [`my_class`] [`my_class&`] [`const my_class&`] [`my_class const&`] [All user-defined types]]
-    [[From `int`]    [`int`] [`int&`] [`const int&`] [`int const`] [All small built-in types]]
-    [[From `int*`]    [`int*`] [`int*&`] [`int* const &`] [`int* const`] [All pointer types]]
-    [[From `int&`]    [`int&`] [`int&`] [`const int&`] [`int&`] [All reference types]]
-    [[From `const int&`]    [`const int&`] [`const int&`] [`const int&`] [`const int&`] [All constant reference types]]
-    [[From `int[3]`]    [`const int*`] [`int(&)[3]`] [`const int(&)[3]`] [`const int* const`] [All array types]]
-    [[From `const int[3]`]    [`const int*`] [`const int(&)[3]`] [`const int(&)[3]`] [`const int* const`] [All constant array types]]
-]
-
-The table assumes the compiler supports partial
-specialization: if it does not then all types behave in
-the same way as the entry for "`my_class`", and
-__call_traits__ can not be used with reference or array types.
-
-[section Example 1:]
-
-The following class is a trivial class that stores some type `T`
-by value (see the [@../../../test/call_traits_test.cpp `call_traits_test.cpp`]
-file). The aim is to illustrate how each of the available
-__call_traits__ `typedef`s may be used:
-
-```
-template <class T>
-struct contained
-{
-   // define our typedefs first, arrays are stored by value
-   // so value_type is not the same as result_type:
-   typedef typename __boost_call_traits__<T>::param_type       param_type;
-   typedef typename __boost_call_traits__<T>::reference        reference;
-   typedef typename __boost_call_traits__<T>::const_reference  const_reference;
-   typedef T                                                value_type;
-   typedef typename __boost_call_traits__<T>::value_type       result_type;
-
-   // stored value:
-   value_type v_;
-
-   // constructors:
-   contained() {}
-   contained(param_type p) : v_(p){}
-   // return byval:
-   result_type value() { return v_; }
-   // return by_ref:
-   reference get() { return v_; }
-   const_reference const_get()const { return v_; }
-   // pass value:
-   void call(param_type p){}
-
-};
-```
-[endsect]
-
-[#sec:refs]
-[section Example 2 (the reference to reference problem):]
-
-Consider the definition of __std_binder1st__:
-
-```
-template <class Operation>
-class binder1st :
-   public __std_unary_function__<typename Operation::second_argument_type, typename Operation::result_type>
-{
-protected:
-   Operation op;
-   typename Operation::first_argument_type value;
-public:
-   binder1st(const Operation& x, const typename Operation::first_argument_type& y);
-   typename Operation::result_type operator()(const typename Operation::second_argument_type& x) const;
-};
-```
-
-Now consider what happens in the relatively common case that
-the functor takes its second argument as a reference, that
-implies that `Operation::second_argument_type` is a
-reference type, `operator()` will now end up taking a
-reference to a reference as an argument, and that is not
-currently legal. The solution here is to modify `operator()`
-to use __call_traits__:
-
-```
-typename Operation::result_type operator()(typename __call_traits__<typename Operation::second_argument_type>::param_type x) const;
-```
-
-Now in the case that `Operation::second_argument_type`
-is a reference type, the argument is passed as a reference, and
-the no "reference to reference" occurs.
-
-[endsect]
-
-[#sec:example3]
-[section Example 3 (the `make_pair` problem):]
-
-If we pass the name of an array as one (or both) arguments to `__std_make_pair__`,
-then template argument deduction deduces the passed parameter as
-"const reference to array of `T`", this also applies to
-string literals (which are really array literals). Consequently
-instead of returning a pair of pointers, it tries to return a
-pair of arrays, and since an array type is not copy-constructible
-the code fails to compile. One solution is to explicitly cast the
-arguments to __std_make_pair__ to pointers, but __call_traits__ provides a
-better automatic solution that works safely even in generic code where the
-cast might do the wrong thing:
-
-```
-template <class T1, class T2>
-__std_pair__<
-   typename __boost_call_traits__<T1>::value_type,
-   typename __boost_call_traits__<T2>::value_type>
-      make_pair(const T1& t1, const T2& t2)
-{
-   return __std_pair__<
-      typename __boost_call_traits__<T1>::value_type,
-      typename __boost_call_traits__<T2>::value_type>(t1, t2);
-}
-```
-
-Here, the deduced argument types will be automatically
-degraded to pointers if the deduced types are arrays, similar
-situations occur in the standard binders and adapters: in
-principle in any function that "wraps" a temporary
-whose type is deduced. Note that the function arguments to
-__std_make_pair__ are not expressed in terms of __call_traits__: doing so
-would prevent template argument deduction from functioning.
-[endsect]
-
-[#sec:example4]
-[section Example 4 (optimising fill):]
-
-The __call_traits__ template will "optimize" the passing
-of a small built-in type as a function parameter. This mainly has
-an effect when the parameter is used within a loop body.
-
-In the following example (see [@boost:/libs/type_traits/examples/fill_example.cpp `fill_example.cpp`]),
-a version of __std_fill__ is optimized in two ways: if the type
-passed is a single byte built-in type then __std_memset__ is used to
-effect the fill, otherwise a conventional C++ implementation is
-used, but with the passed parameter "optimized" using
-__call_traits__:
-
-```
-template <bool opt>
-struct filler
-{
-   template <typename I, typename T>
-   static void do_fill(I first, I last, typename __boost_call_traits__<T>::param_type val)
-   {
-      while(first != last)
-      {
-         *first = val;
-         ++first;
-      }
-   }
-};
-
-template <>
-struct filler<true>
-{
-   template <typename I, typename T>
-   static void do_fill(I first, I last, T val)
-   {
-      __std_memset__(first, val, last-first);
-   }
-};
-
-template <class I, class T>
-inline void fill(I first, I last, const T& val)
-{
-   enum { can_opt = boost::is_pointer<I>::value
-                   && boost::is_arithmetic<T>::value
-                   && (sizeof(T) == 1) };
-   typedef filler<can_opt> filler_t;
-   filler_t::template do_fill<I,T>(first, last, val);
-}
-```
-
-The reason that this is "optimal" for small built-in types is that
-with the value passed as `T const` instead of `const T&` the compiler is
-able to tell both that the value is constant and that it is free
-of aliases. With this information the compiler is able to cache
-the passed value in a register, unroll the loop, or use
-explicitly parallel instructions: if any of these are supported.
-Exactly how much mileage you will get from this depends upon your
-compiler - we could really use some accurate benchmarking
-software as part of boost for cases like this.
-
-Note that the function arguments to fill are not expressed in
-terms of __call_traits__: doing so would prevent template argument
-deduction from functioning. Instead fill acts as a "thin
-wrapper" that is there to perform template argument
-deduction, the compiler will optimise away the call to fill all
-together, replacing it with the call to `filler<>::do_fill`,
-which does use __call_traits__.
-
-[endsect]
-[endsect]
-
-[section Rationale]
-
-The following notes are intended to briefly describe the
-rationale behind choices made in __call_traits__.
-
-All user-defined types follow "existing practice" and need no comment.
-
-Small built-in types, what the standard calls [@https://en.cppreference.com/w/cpp/language/types fundamental
-types], differ from existing practice only in the `param_type`
-`typedef`. In this case passing `T const` is compatible
-with existing practice, but may improve performance in some cases
-(see [link sec:example4 Example 4]). In any case this should never
-be any worse than existing practice.
-
-Pointers follow the same rationale as small built-in types.
-
-For reference types the rationale follows [link sec:refs Example 2]
-- references to references are not allowed, so the __call_traits__
-members must be defined such that these problems do
-not occur. There is a proposal to modify the language such that
-"a reference to a reference is a reference" (issue #106,
-submitted by Bjarne Stroustrup). __call_traits_T__`::value_type`
-and __call_traits_T__`::param_type` both provide the same effect
-as that proposal, without the need for a language change. In
-other words, it's a workaround.
-
-For array types, a function that takes an array as an argument
-will degrade the array type to a pointer type: this means that
-the type of the actual parameter is different from its declared
-type, something that can cause endless problems in template code
-that relies on the declared type of a parameter.
-
-For example:
-
-```
-template <class T>
-struct A
-{
-   void foo(T t);
-};
-```
-
-In this case if we instantiate `A<int[2]>` then the declared type of
-the parameter passed to member function `foo` is `int[2]`, but its
-actual type is `const int*`. If we try to use the type `T` within the
-function body, then there is a strong likelihood that our code will not compile:
-
-```
-template <class T>
-void A<T>::foo(T t)
-{
-   T dup(t); // doesn't compile for case that T is an array.
-}
-```
-
-By using __call_traits__ the degradation from array to pointer is
-explicit, and the type of the parameter is the same as it's
-declared type:
-
-```
-template <class T>
-struct A
-{
-   void foo(typename __call_traits__<T>::value_type t);
-};
-
-template <class T>
-void A<T>::foo(typename __call_traits__<T>::value_type t)
-{
-   typename __call_traits__<T>::value_type dup(t); // OK even if T is an array type.
-}
-```
-
-For `value_type` (return by value), again only a pointer may be
-returned, not a copy of the whole array, and again __call_traits__
-makes the degradation explicit. The `value_type` member is useful
-whenever an array must be explicitly degraded to a pointer -
-[link sec:example3 Example 3] provides the test case.
-
-Footnote: the array specialisation for __call_traits__ is the least
-well understood of all the __call_traits__ specialisations. If the given
-semantics cause specific problems for you, or does not solve a particular
-array-related problem, then I would be interested to hear about
-it. Most people though will probably never need to use this
-specialisation.
-
-[endsect]
-
-[/===============]
-[xinclude tmp/call_traits_reference.xml]
-[/===============]
-
-[endsect]

doc/compressed_pair.qbk

@@ -1,98 +0,0 @@
-[/
-  Copyright 2000 Beman Dawes & John Maddock.
-  Copyright (c) 2021, Alan Freitas
-
-  Distributed under the Boost Software License, Version 1.0.
-
-  See accompanying file LICENSE_1_0.txt
-  or copy at http://boost.org/LICENSE_1_0.txt
-]
-
-[section Compressed Pair]
-
-[section Introduction]
-
-All of the contents of [@../../../../boost/compressed_pair.hpp `<boost/compressed_pair.hpp>`] are defined inside
-`namespace boost`.
-
-The class __compressed_pair__ is very similar to __std_pair__. However, if either of
-the template arguments are empty classes, then the
-[@https://en.cppreference.com/w/cpp/language/ebo ['empty base-class optimisation]]
-is applied to compress the size of the pair.
-
-[endsect]
-
-[section Synopsis]
-
-```cpp
-template <class T1, class T2>
-class __compressed_pair__
-{
-public:
-    typedef T1                                                 first_type;
-    typedef T2                                                 second_type;
-    typedef typename __call_traits__<first_type>::param_type       first_param_type;
-    typedef typename __call_traits__<second_type>::param_type      second_param_type;
-    typedef typename __call_traits__<first_type>::reference        first_reference;
-    typedef typename __call_traits__<second_type>::reference       second_reference;
-    typedef typename __call_traits__<first_type>::const_reference  first_const_reference;
-    typedef typename __call_traits__<second_type>::const_reference second_const_reference;
-
-             compressed_pair() : base() {}
-             compressed_pair(first_param_type x, second_param_type y);
-    explicit compressed_pair(first_param_type x);
-    explicit compressed_pair(second_param_type y);
-
-    compressed_pair& operator=(const compressed_pair&);
-
-    first_reference       first();
-    first_const_reference first() const;
-
-    second_reference       second();
-    second_const_reference second() const;
-
-    void swap(compressed_pair& y);
-};
-```
-
-The two members of the pair can be accessed using the member functions
-`first()` and `second()`. Note that not all member functions can be
-instantiated for all template parameter types. In particular
-__compressed_pair__ can be instantiated for reference and array types,
-however in these cases the range of constructors that can be used is
-limited. If types `T1` and `T2` are the same type, then there is only
-one version of the single-argument constructor, and this constructor
-initialises both values in the pair to the passed value.
-
-Note that if either member is a [@https://en.cppreference.com/w/cpp/named_req/PODType POD]
-type, then that member is not zero-initialized by the __compressed_pair__ default constructor:
-it is up to you to supply an initial value for these types if you want them to have
-a default value.
-
-Note that __compressed_pair__ can not be instantiated if either of the
-template arguments is a union type, unless there is compiler support for
-[@boost:/libs/type_traits/index.html `boost::is_union`], or
-if [@boost:/libs/type_traits/index.html `boost::is_union`] is
-specialised for the union type.
-
-Finally, a word of caution for Visual C++ 6 users: if either argument is an
-empty type, then assigning to that member will produce memory corruption,
-unless the empty type has a "do nothing" assignment operator defined. This
-is due to a bug in the way VC6 generates implicit assignment operators.
-
-[endsect]
-
-[/===============]
-[xinclude tmp/compressed_pair_reference.xml]
-[/===============]
-
-[section Acknowledgments]
-
-Based on contributions by Steve Cleary, Beman Dawes, Howard Hinnant and
-John Maddock.
-
-Maintained by [@mailto:john@johnmaddock.co.uk John Maddock].
-
-[endsect]
-
-[endsect]

doc/declval.qbk

@@ -0,0 +1,115 @@
+[/
+ / Copyright (c) 2008 Howard Hinnant
+ / Copyright (c) 2009-20012 Vicente J. Botet Escriba
+ /
+ / Distributed under the Boost Software License, Version 1.0. (See accompanying
+ / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ /]
+
+[article Declval
+    [quickbook 1.5]
+    [authors [Hinnant, Howard]]
+    [authors [Botet Escriba, Vicente J.]]
+    [copyright 2008 Howard Hinnant]
+    [copyright 2009-2012 Vicente J. Botet Escriba]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[/===============]
+[section Overview]
+[/===============]
+
+The motivation for `declval` was introduced in [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2958.html#Value N2958: 
+Moving Swap Forward]. Here follows a rewording of this chapter.
+
+With the provision of decltype, late-specified return types, and default template-arguments for function templates a 
+new generation of SFINAE patterns will emerge to at least partially compensate the lack of concepts on the C++0x timescale. 
+Using this technique, it is sometimes necessary to obtain an object of a known type in a non-using context, e.g. given the declaration 
+
+  template<class T>
+  T&& declval(); // not used
+  
+as part of the function template declaration 
+
+  template<class To, class From>
+  decltype(static_cast<To>(declval<From>())) convert(From&&);
+  
+or as part of a class template definition 
+
+  template<class> class result_of;
+
+  template<class Fn, class... ArgTypes>
+  struct result_of<Fn(ArgTypes...)> 
+  {
+    typedef decltype(declval<Fn>()(declval<ArgTypes>()...)) type;
+  };
+  
+The role of the function template declval() is a transformation of a type T into a value without using or evaluating this function. 
+The name is supposed to direct the reader's attention to the fact that the expression `declval<T>()` is an lvalue if and only if 
+T is an lvalue-reference, otherwise an rvalue. To extend the domain of this function we can do a bit better by changing its declaration to 
+
+  template<class T>
+  typename std::add_rvalue_reference<T>::type declval(); // not used
+  
+which ensures that we can also use cv void as template parameter. The careful reader might have noticed that `declval()` 
+already exists under the name create() as part of the definition of the semantics of the type trait is_convertible in the C++0x standard. 
+
+The provision of a new library component that allows the production of values in unevaluated expressions is considered 
+important to realize constrained templates in C++0x where concepts are not available. 
+This extremely light-weight function is expected to be part of the daily tool-box of the C++0x programmer. 
+
+[endsect]
+
+
+[/=================]
+[section:reference Reference ]
+[/=================]
+
+`#include <boost/utility/declval.hpp>`
+
+    namespace boost {
+
+        template <typename T>
+        typename add_rvalue_reference<T>::type declval() noexcept; // as unevaluated operand
+
+    }  // namespace boost
+
+
+The library provides the function template declval to simplify the definition of expressions which occur as unevaluated operands.
+
+        template <typename T>
+        typename add_rvalue_reference<T>::type declval();
+
+[*Remarks:] If this function is used, the program is ill-formed.
+
+[*Remarks:] The template parameter T of declval may be an incomplete type.
+
+[*Example:]
+
+    template <class To, class From>
+    decltype(static_cast<To>(declval<From>())) convert(From&&);
+
+Declares a function template convert which only participates in overloading if the type From can be explicitly converted to type To. 
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.50]
+
+Fixes:
+
+* [@http://svn.boost.org/trac/boost/ticket/6570 #6570] Adding noexcept to boost::declval.
+ 	
+
+[endsect]
+
+
+
+

doc/explicit_operator_bool.qbk

@@ -0,0 +1,68 @@
+[/
+ / Copyright (c) 2013 Andrey Semashev
+ /
+ / Distributed under the Boost Software License, Version 1.0. (See accompanying
+ / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ /]
+
+[article BOOST_EXPLICIT_OPERATOR_BOOL and BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL
+    [quickbook 1.5]
+    [authors [Semashev, Andrey]]
+    [copyright 2013 Andrey Semashev]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[/===============]
+[section Overview]
+[/===============]
+
+`BOOST_EXPLICIT_OPERATOR_BOOL()` and `BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()` are compatibility helper macros that expand to an explicit conversion operator to `bool`. For compilers not supporting explicit conversion operators introduced in C++11 the macros expand to a conversion operator that implements the [@http://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Safe_bool safe bool idiom]. In case if the compiler is not able to handle safe bool idiom well the macros expand to a regular conversion operator to `bool`.
+
+[endsect]
+
+
+[/===============]
+[section Examples]
+[/===============]
+
+Both macros are intended to be placed within a user's class definition. The generated conversion operators will be implemented in terms of `operator!()` that should be defined by user in this class. In case of `BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()` the generated conversion operator will be declared `constexpr` which requires the corresponding `operator!()` to also be `constexpr`.
+
+    template< typename T >
+    class my_ptr
+    {
+        T* m_p;
+
+    public:
+        BOOST_EXPLICIT_OPERATOR_BOOL()
+
+        bool operator!() const
+        {
+            return !m_p;
+        }
+    };
+
+Now `my_ptr` can be used in conditional expressions, similarly to a regular pointer:
+
+    my_ptr< int > p;
+    if (p)
+        std::cout << "true" << std::endl;
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.55]
+
+* The macro was extracted from Boost.Log.
+
+[endsect]
+
+
+
+

doc/html/declval.html

@@ -0,0 +1,176 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Declval</title>
+<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.76.0">
+<link rel="home" href="declval.html" title="Declval">
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+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
+<td align="center"><a href="../../../../index.html">Home</a></td>
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+<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
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+<div>
+<div><h2 class="title">
+<a name="declval"></a>Declval</h2></div>
+<div><div class="authorgroup">
+<div class="author"><h3 class="author">
+<span class="firstname">Howard</span> <span class="surname">Hinnant</span>
+</h3></div>
+<div class="author"><h3 class="author">
+<span class="firstname">Vicente J.</span> <span class="surname">Botet Escriba</span>
+</h3></div>
+</div></div>
+<div><p class="copyright">Copyright &#169; 2008 Howard Hinnant</p></div>
+<div><p class="copyright">Copyright &#169; 2009 -2012 Vicente J. Botet Escriba</p></div>
+<div><div class="legalnotice">
+<a name="idp13456288"></a><p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></div>
+</div>
+<hr>
+</div>
+<div class="toc">
+<p><b>Table of Contents</b></p>
+<dl>
+<dt><span class="section"><a href="declval.html#declval.overview">Overview</a></span></dt>
+<dt><span class="section"><a href="declval.html#declval.reference">Reference </a></span></dt>
+<dt><span class="section"><a href="declval.html#declval.history">History</a></span></dt>
+</dl>
+</div>
+<div class="section declval_overview">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="declval.overview"></a><a class="link" href="declval.html#declval.overview" title="Overview">Overview</a>
+</h2></div></div></div>
+<p>
+      The motivation for <code class="computeroutput"><span class="identifier">declval</span></code>
+      was introduced in <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2958.html#Value" target="_top">N2958:
+      Moving Swap Forward</a>. Here follows a rewording of this chapter.
+    </p>
+<p>
+      With the provision of decltype, late-specified return types, and default template-arguments
+      for function templates a new generation of SFINAE patterns will emerge to at
+      least partially compensate the lack of concepts on the C++0x timescale. Using
+      this technique, it is sometimes necessary to obtain an object of a known type
+      in a non-using context, e.g. given the declaration
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
+<span class="identifier">T</span><span class="special">&amp;&amp;</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
+</span></pre>
+<p>
+      as part of the function template declaration
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">To</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">From</span><span class="special">&gt;</span>
+<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">To</span><span class="special">&gt;(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">From</span><span class="special">&gt;()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&amp;&amp;);</span>
+</pre>
+<p>
+      or as part of a class template definition
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span><span class="special">&gt;</span> <span class="keyword">class</span> <span class="identifier">result_of</span><span class="special">;</span>
+
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> <span class="identifier">ArgTypes</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">result_of</span><span class="special">&lt;</span><span class="identifier">Fn</span><span class="special">(</span><span class="identifier">ArgTypes</span><span class="special">...)&gt;</span> 
+<span class="special">{</span>
+  <span class="keyword">typedef</span> <span class="identifier">decltype</span><span class="special">(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">Fn</span><span class="special">&gt;()(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">ArgTypes</span><span class="special">&gt;()...))</span> <span class="identifier">type</span><span class="special">;</span>
+<span class="special">};</span>
+</pre>
+<p>
+      The role of the function template declval() is a transformation of a type T
+      into a value without using or evaluating this function. The name is supposed
+      to direct the reader's attention to the fact that the expression <code class="computeroutput"><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;()</span></code> is
+      an lvalue if and only if T is an lvalue-reference, otherwise an rvalue. To
+      extend the domain of this function we can do a bit better by changing its declaration
+      to
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
+<span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
+</span></pre>
+<p>
+      which ensures that we can also use cv void as template parameter. The careful
+      reader might have noticed that <code class="computeroutput"><span class="identifier">declval</span><span class="special">()</span></code> already exists under the name create() as
+      part of the definition of the semantics of the type trait is_convertible in
+      the C++0x standard.
+    </p>
+<p>
+      The provision of a new library component that allows the production of values
+      in unevaluated expressions is considered important to realize constrained templates
+      in C++0x where concepts are not available. This extremely light-weight function
+      is expected to be part of the daily tool-box of the C++0x programmer.
+    </p>
+</div>
+<div class="section declval_reference">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="declval.reference"></a><a class="link" href="declval.html#declval.reference" title="Reference">Reference </a>
+</h2></div></div></div>
+<p>
+      <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">utility</span><span class="special">/</span><span class="identifier">declval</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
+    </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
+
+    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">()</span> <span class="identifier">noexcept</span><span class="special">;</span> <span class="comment">// as unevaluated operand
+</span>
+<span class="special">}</span>  <span class="comment">// namespace boost
+</span></pre>
+<p>
+      The library provides the function template declval to simplify the definition
+      of expressions which occur as unevaluated operands.
+    </p>
+<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+<span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span>
+</pre>
+<p>
+      <span class="bold"><strong>Remarks:</strong></span> If this function is used, the program
+      is ill-formed.
+    </p>
+<p>
+      <span class="bold"><strong>Remarks:</strong></span> The template parameter T of declval
+      may be an incomplete type.
+    </p>
+<p>
+      <span class="bold"><strong>Example:</strong></span>
+    </p>
+<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">To</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">From</span><span class="special">&gt;</span>
+<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">To</span><span class="special">&gt;(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">From</span><span class="special">&gt;()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&amp;&amp;);</span>
+</pre>
+<p>
+      Declares a function template convert which only participates in overloading
+      if the type From can be explicitly converted to type To.
+    </p>
+</div>
+<div class="section declval_history">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="declval.history"></a><a class="link" href="declval.html#declval.history" title="History">History</a>
+</h2></div></div></div>
+<a name="declval.history.boost_1_50"></a><h4>
+<a name="idp13559952"></a>
+      <a class="link" href="declval.html#declval.history.boost_1_50">boost 1.50</a>
+    </h4>
+<p>
+      New Features:
+    </p>
+<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">
+          <a href="http://svn.boost.org/trac/boost/ticket/6570" target="_top">#6570</a>
+          Adding noexcept to boost::declval.
+        </li></ul></div>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"><p><small>Last revised: March 25, 2012 at 18:26:23 GMT</small></p></td>
+<td align="right"><div class="copyright-footer"></div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"></div>
+</body>
+</html>

doc/html/string_ref.html

@@ -0,0 +1,280 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>String_Ref</title>
+<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<link rel="home" href="string_ref.html" title="String_Ref">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
+<td align="center"><a href="../../../../index.html">Home</a></td>
+<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
+<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../more/index.htm">More</a></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"></div>
+<div class="article">
+<div class="titlepage">
+<div>
+<div><h2 class="title">
+<a name="string_ref"></a>String_Ref</h2></div>
+<div><div class="authorgroup"><div class="author"><h3 class="author">
+<span class="firstname">Marshall</span> <span class="surname">Clow</span>
+</h3></div></div></div>
+<div><p class="copyright">Copyright &#169; 2012 Marshall Clow</p></div>
+<div><div class="legalnotice">
+<a name="string_ref.legal"></a><p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div></div>
+</div>
+<hr>
+</div>
+<div class="toc">
+<p><b>Table of Contents</b></p>
+<dl>
+<dt><span class="section"><a href="string_ref.html#string_ref.overview">Overview</a></span></dt>
+<dt><span class="section"><a href="string_ref.html#string_ref.examples">Examples</a></span></dt>
+<dt><span class="section"><a href="string_ref.html#string_ref.reference">Reference </a></span></dt>
+<dt><span class="section"><a href="string_ref.html#string_ref.history">History</a></span></dt>
+</dl>
+</div>
+<div class="section string_ref_overview">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_ref.overview"></a><a class="link" href="string_ref.html#string_ref.overview" title="Overview">Overview</a>
+</h2></div></div></div>
+<p>
+      Boost.StringRef is an implementation of Jeffrey Yaskin's <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html" target="_top">N3442:
+      string_ref: a non-owning reference to a string</a>.
+    </p>
+<p>
+      When you are parsing/processing strings from some external source, frequently
+      you want to pass a piece of text to a procedure for specialized processing.
+      The canonical way to do this is as a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>,
+      but that has certain drawbacks:
+    </p>
+<p>
+      1) If you are processing a buffer of text (say a HTTP response or the contents
+      of a file), then you have to create the string from the text you want to pass,
+      which involves memory allocation and copying of data.
+    </p>
+<p>
+      2) if a routine receives a constant <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
+      and wants to pass a portion of that string to another routine, then it must
+      create a new string of that substring.
+    </p>
+<p>
+      3) A routine receives a constant <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
+      and wants to return a portion of the string, then it must create a new string
+      to return.
+    </p>
+<p>
+      <code class="computeroutput"><span class="identifier">string_ref</span></code> is designed to solve
+      these efficiency problems. A <code class="computeroutput"><span class="identifier">string_ref</span></code>
+      is a read-only reference to a contiguous sequence of characters, and provides
+      much of the functionality of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>.
+      A <code class="computeroutput"><span class="identifier">string_ref</span></code> is cheap to create,
+      copy and pass by value, because it does not actually own the storage that it
+      points to.
+    </p>
+<p>
+      A <code class="computeroutput"><span class="identifier">string_ref</span></code> is implemented
+      as a small struct that contains a pointer to the start of the character data
+      and a count. A <code class="computeroutput"><span class="identifier">string_ref</span></code> is
+      cheap to create and cheap to copy.
+    </p>
+<p>
+      <code class="computeroutput"><span class="identifier">string_ref</span></code> acts as a container;
+      it includes all the methods that you would expect in a container, including
+      iteration support, <code class="computeroutput"><span class="keyword">operator</span> <span class="special">[]</span></code>,
+      <code class="computeroutput"><span class="identifier">at</span></code> and <code class="computeroutput"><span class="identifier">size</span></code>.
+      It can be used with any of the iterator-based algorithms in the STL - as long
+      as you don't need to change the underlying data (<code class="computeroutput"><span class="identifier">sort</span></code>
+      and <code class="computeroutput"><span class="identifier">remove</span></code>, for example, will
+      not work)
+    </p>
+<p>
+      Besides generic container functionality, <code class="computeroutput"><span class="identifier">string_ref</span></code>
+      provides a subset of the interface of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>.
+      This makes it easy to replace parameters of type <code class="computeroutput"><span class="keyword">const</span>
+      <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span></code>
+      with <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_ref</span></code>. Like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>,
+      <code class="computeroutput"><span class="identifier">string_ref</span></code> has a static member
+      variable named <code class="computeroutput"><span class="identifier">npos</span></code> to denote
+      the result of failed searches, and to mean "the end".
+    </p>
+<p>
+      Because a <code class="computeroutput"><span class="identifier">string_ref</span></code> does not
+      own the data that it "points to", it introduces lifetime issues into
+      code that uses it. The programmer must ensure that the data that a <code class="computeroutput"><span class="identifier">string_ref</span></code> refers to exists as long as the
+      <code class="computeroutput"><span class="identifier">string_ref</span></code> does.
+    </p>
+</div>
+<div class="section string_ref_examples">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_ref.examples"></a><a class="link" href="string_ref.html#string_ref.examples" title="Examples">Examples</a>
+</h2></div></div></div>
+<p>
+      Integrating <code class="computeroutput"><span class="identifier">string_ref</span></code> into
+      your code is fairly simple. Wherever you pass a <code class="computeroutput"><span class="keyword">const</span>
+      <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span></code>
+      or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> as a parameter, that's a candidate
+      for passing a <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_ref</span></code>.
+    </p>
+<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span><span class="identifier">bar</span> <span class="special">)</span> <span class="special">{</span>
+    <span class="keyword">return</span> <span class="identifier">bar</span><span class="special">.</span><span class="identifier">substr</span> <span class="special">(</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span> <span class="special">);</span>
+    <span class="special">}</span>
+
+<span class="keyword">if</span> <span class="special">(</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="string">"ABCDEFG"</span> <span class="special">).</span><span class="identifier">front</span><span class="special">()</span> <span class="special">==</span> <span class="string">"C"</span> <span class="special">)</span> <span class="special">{</span> <span class="comment">/* do something */</span> <span class="special">}</span>
+</pre>
+<p>
+      Let's figure out what happens in this (contrived) example.
+    </p>
+<p>
+      First, a temporary string is created from the string literal <code class="computeroutput"><span class="string">"ABCDEFG"</span></code>, and it is passed (by reference)
+      to the routine <code class="computeroutput"><span class="identifier">extract_part</span></code>.
+      Then a second string is created in the call <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">substr</span></code>
+      and returned to <code class="computeroutput"><span class="identifier">extract_part</span></code>
+      (this copy may be elided by RVO). Then <code class="computeroutput"><span class="identifier">extract_part</span></code>
+      returns that string back to the caller (again this copy may be elided). The
+      first temporary string is deallocated, and <code class="computeroutput"><span class="identifier">front</span></code>
+      is called on the second string, and then it is deallocated as well.
+    </p>
+<p>
+      Two <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>s are created, and two copy operations.
+      That's (potentially) four memory allocations and deallocations, and the associated
+      copying of data.
+    </p>
+<p>
+      Now let's look at the same code with <code class="computeroutput"><span class="identifier">string_ref</span></code>:
+    </p>
+<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_ref</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_ref</span> <span class="identifier">bar</span> <span class="special">)</span> <span class="special">{</span>
+    <span class="keyword">return</span> <span class="identifier">bar</span><span class="special">.</span><span class="identifier">substr</span> <span class="special">(</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span> <span class="special">);</span>
+    <span class="special">}</span>
+
+<span class="keyword">if</span> <span class="special">(</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="string">"ABCDEFG"</span> <span class="special">).</span><span class="identifier">front</span><span class="special">()</span> <span class="special">==</span> <span class="string">"C"</span> <span class="special">)</span> <span class="special">{</span> <span class="comment">/* do something */</span> <span class="special">}</span>
+</pre>
+<p>
+      No memory allocations. No copying of character data. No changes to the code
+      other than the types. There are two <code class="computeroutput"><span class="identifier">string_ref</span></code>s
+      created, and two <code class="computeroutput"><span class="identifier">string_ref</span></code>s
+      copied, but those are cheap operations.
+    </p>
+</div>
+<div class="section string_ref_reference">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_ref.reference"></a><a class="link" href="string_ref.html#string_ref.reference" title="Reference">Reference </a>
+</h2></div></div></div>
+<p>
+      The header file "string_ref.hpp" defines a template <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">basic_string_ref</span></code>,
+      and four specializations - for <code class="computeroutput"><span class="keyword">char</span></code>
+      / <code class="computeroutput"><span class="keyword">wchar_t</span></code> / <code class="computeroutput"><span class="identifier">char16_t</span></code>
+      / <code class="computeroutput"><span class="identifier">char32_t</span></code> .
+    </p>
+<p>
+      <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">utility</span><span class="special">/</span><span class="identifier">string_ref</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
+    </p>
+<p>
+      Construction and copying:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_ref</span> <span class="special">();</span>    <span class="comment">// Constructs an empty string_ref</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_ref</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span> <span class="comment">// Constructs from a NULL-terminated string</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_ref</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">len</span><span class="special">);</span> <span class="comment">// Constructs from a pointer, length pair</span>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>
+<span class="identifier">basic_string_ref</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">str</span><span class="special">);</span> <span class="comment">// Constructs from a std::string</span>
+<span class="identifier">basic_string_ref</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string_ref</span> <span class="special">&amp;</span><span class="identifier">rhs</span><span class="special">);</span>
+<span class="identifier">basic_string_ref</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">=(</span><span class="keyword">const</span> <span class="identifier">basic_string_ref</span> <span class="special">&amp;</span><span class="identifier">rhs</span><span class="special">);</span>
+</pre>
+<p>
+      <code class="computeroutput"><span class="identifier">string_ref</span></code> does not define
+      a move constructor nor a move-assignment operator because copying a <code class="computeroutput"><span class="identifier">string_ref</span></code> is just a cheap as moving one.
+    </p>
+<p>
+      Basic container-like functions:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">size</span><span class="special">()</span>     <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">length</span><span class="special">()</span>   <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">max_size</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">empty</span><span class="special">()</span>         <span class="keyword">const</span> <span class="special">;</span>
+
+<span class="comment">// All iterators are const_iterators</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>  <span class="identifier">begin</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span> <span class="identifier">cbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>    <span class="identifier">end</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>   <span class="identifier">cend</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>         <span class="identifier">rbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>        <span class="identifier">crbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>           <span class="identifier">rend</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>          <span class="identifier">crend</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+</pre>
+<p>
+      Access to the individual elements (all of which are const):
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">[](</span><span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">at</span><span class="special">(</span><span class="identifier">size_t</span> <span class="identifier">pos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">front</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">back</span><span class="special">()</span>  <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">data</span><span class="special">()</span>  <span class="keyword">const</span> <span class="special">;</span>
+</pre>
+<p>
+      Modifying the <code class="computeroutput"><span class="identifier">string_ref</span></code> (but
+      not the underlying data):
+    </p>
+<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">clear</span><span class="special">();</span>
+<span class="keyword">void</span> <span class="identifier">remove_prefix</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">);</span>
+<span class="keyword">void</span> <span class="identifier">remove_suffix</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">);</span>
+</pre>
+<p>
+      Searching:
+    </p>
+<pre class="programlisting"><span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_last_of</span> <span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+
+<span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_last_of</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">s</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+</pre>
+<p>
+      String-like operations:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_ref</span> <span class="identifier">substr</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">=</span><span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span> <span class="comment">// Creates a new string_ref</span>
+<span class="keyword">bool</span> <span class="identifier">starts_with</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="keyword">bool</span> <span class="identifier">starts_with</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">x</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="keyword">bool</span> <span class="identifier">ends_with</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="keyword">bool</span> <span class="identifier">ends_with</span><span class="special">(</span><span class="identifier">basic_string_ref</span> <span class="identifier">x</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+</pre>
+</div>
+<div class="section string_ref_history">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_ref.history"></a><a class="link" href="string_ref.html#string_ref.history" title="History">History</a>
+</h2></div></div></div>
+<h4>
+<a name="string_ref.history.h0"></a>
+      <span><a name="string_ref.history.boost_1_53"></a></span><a class="link" href="string_ref.html#string_ref.history.boost_1_53">boost
+      1.53</a>
+    </h4>
+<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">
+          Introduced
+        </li></ul></div>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"><p><small>Last revised: January 14, 2013 at 16:24:14 GMT</small></p></td>
+<td align="right"><div class="copyright-footer"></div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"></div>
+</body>
+</html>

doc/in_place_factory.qbk

@@ -1,308 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[#sec:in_place_factory]
-[section In-place Factory]
-[/===============]
-
-[section Introduction]
-
-Suppose we have a class
-
-```
-struct X
-{
-  X ( int, __std_string__ ) ;
-};
-```
-
-And a container for it which supports an empty state. That is, a container which can contain zero objects:
-
-```
-struct C
-{
-   C() : contained_(0) {}
-  ~C() { delete contained_ ; }
-  X* contained_ ;
-};
-```
-
-A container designed to support an empty state typically does not require the contained type to be
-__DefaultConstructible__, but it typically requires it to be __CopyConstructible__ as a mechanism to
-initialize the object to store:
-
-```
-struct C
-{
-   C() : contained_(0) {}
-   C ( X const& v ) : contained_ ( new X(v) ) {}
-  ~C() { delete contained_ ; }
-  X* contained_ ;
-};
-```
-
-There is a subtle problem with this: since the mechanism used to initialize the stored object is copy construction,
-there must exist a previously constructed source object to copy from. This object is likely to be temporary and serve
-no purpose besides being the source:
-
-```
-void foo()
-{
-  // Temporary object created.
-  C c( X(123,"hello") ) ;
-}
-```
-
-A solution to this problem is to support direct construction of the contained
-object right in the container's storage.
-
-In this scheme, the user supplies the arguments for the `X` constructor
-directly to the container:
-
-```
-struct C
-{
-   C() : contained_(0) {}
-   C ( X const& v ) : contained_ ( new X(v) ) {}
-   C ( int a0, __std_string__ a1 ) : contained_ ( new X(a0,a1) ) {}
-  ~C() { delete contained_ ; }
-  X* contained_ ;
-};
-```
-
-```
-void foo()
-{
-  // Wrapped object constructed in-place
-  // No temporary created.
-  C c(123,"hello");
-}
-```
-
-Clearly, this solution does not scale well since the container must duplicate all the constructor overloads
-from the contained type, or at least all those which are to be supported directly in the container.
-
-[endsect]
-[section Framework]
-
-This library proposes a framework to allow some containers to directly construct contained objects in-place without requiring
-the entire set of constructor overloads from the contained type. It also allows the container to remove the __CopyConstructible__
-requirement from the contained type since objects can be directly constructed in-place without need of a copy.
-
-The only requirement on the container is that it must provide proper storage. That is, the container should be
-correctly aligned and sized. Naturally, the container will typically support uninitialized storage to avoid the
-in-place construction to override a fully-constructed object, as this would defeat the purpose of in-place construction.
-
-For this purpose, the framework provides two concepts called: InPlaceFactories and TypedInPlaceFactories.
-Helpers to declare these classes are declared in [@../../../../boost/utility/in_place_factory.hpp `<boost/utility/in_place_factory.hpp>`]
-and [@../../../../boost/utility/typed_in_place_factory.hpp `<boost/utility/typed_in_place_factory.hpp>`].
-
-Essentially, these classes hold a sequence of actual parameters and a method to construct an object in place using these parameters.
-Each member of the family differs only in the number and type of the parameter list. The first family
-takes the type of the object to construct directly in method provided for that
-purpose, whereas the second family incorporates that type in the factory class
-itself. From the container point of view, using the framework amounts to calling the
-factory's method to contruct the object in place. From the user point of view, it amounts to creating
-the right factory object to hold the parameters and pass it to the container.
-
-The following simplified example shows the basic idea. A complete example follows the formal specification of the framework:
-
-```
-struct C
-{
-   template <class InPlaceFactory>
-   C ( InPlaceFactory const& aFactory )
-    :
-    contained_ ( uninitialized_storage() )
-   {
-     aFactory.template apply<X>(contained_);
-   }
-
-  ~C()
-  {
-    contained_ -> X::~X();
-    delete[] contained_ ;
-  }
-
-  char* uninitialized_storage() { return new char[sizeof(X)] ; }
-
-  char* contained_ ;
-};
-
-void foo()
-{
-  C c( in_place(123,"hello") ) ;
-}
-
-```
-
-[endsect]
-[section Specification]
-
-The following is the first member of the family of `InPlaceFactory` classes, along with its corresponding helper template function.
-The rest of the family varies only in the number and type of template and constructor parameters.
-
-
-```
-namespace boost {
-
-struct __in_place_factory_base__ {};
-
-template<class A0>
-class in_place_factory : public __in_place_factory_base__
-{
-  public:
-    in_place_factory ( A0 const& a0 ) : m_a0(a0) {}
-
-    template< class T >
-    void apply ( void* address ) const
-    {
-      new (address) T(m_a0);
-    }
-
-  private:
-      A0 const& m_a0 ;
-};
-
-template<class A0>
-in_place_factory<A0> in_place ( A0 const& a0 )
-{
-  return in_place_factory<A0>(a0);
-}
-
-}
-```
-
-Similarly, the following is the first member of the family of `typed_in_place_factory` classes, along with its corresponding
-helper template function. The rest of the family varies only in the number and type of template and constructor parameters.
-
-```
-namespace boost {
-
-struct __typed_in_place_factory_base__ {};
-
-template<class T, class A0>
-class typed_in_place_factory : public __typed_in_place_factory_base__
-{
-  public:
-    typed_in_place_factory ( A0 const& a0 ) : m_a0(a0) {}
-
-    void apply ( void* address ) const
-    {
-      new (address) T(m_a0);
-    }
-
-  private:
-    A0 const& m_a0 ;
-};
-
-template<class T, class A0>
-typed_in_place_factory<A0> in_place ( A0 const& a0 )
-{
-  return typed_in_place_factory<T,A0>(a0);
-}
-}
-```
-
-As you can see, the `in_place_factory` and `typed_in_place_factory` template classes vary only in the way they specify
-the target type: in the first family, the type is given as a template argument to the apply member function while in the
-second it is given directly as part of the factory class.
-
-When the container holds a unique non-polymorphic type, such as the case of [@boost:/libs/optional/index.html Boost.Optional],
-it knows the exact dynamic-type of the contained object and can pass it to the `apply()` method of a non-typed factory.
-In this case, end users can use an `in_place_factory` instance which can be constructed without the type of the object to construct.
-
-However, if the container holds heterogeneous or polymorphic objects, such as the case of [@boost:/libs/variant/index.html Boost.Variant],
-the dynamic-type of the object to be constructed must be known by the factory. In this case, end users must use a `typed_in_place_factory`
-instead.
-
-[endsect]
-[section Container-side Usage]
-
-As shown in the introductory simplified example, the container class must contain methods that accept an instance of
-these factories and pass the object's storage to the factory's apply method.
-
-However, the type of the factory class cannot be completely specified in the container class because that would
-defeat the whole purpose of the factories which is to allow the container to accept a variadic argument list
-for the constructor of its contained object.
-
-The correct function overload must be based on the only distinctive and common
-characteristic of all the classes in each family: the base class.
-
-Depending on the container class, you can use `enable_if` to generate the right overload, or use the following
-dispatch technique, which is used in the [@boost:/libs/optional/index.html Boost.Optional] class:
-
-
-```
-struct C
-{
-   C() : contained_(0) {}
-   C ( X const& v ) : contained_ ( new X(v) ) {}
-
-   template <class Expr>
-   C ( Expr const& expr )
-    :
-    contained_ ( uninitialized_storage() )
-   {
-    construct(expr,&expr);
-   }
-
-  ~C() { delete contained_ ; }
-
-  template<class InPlaceFactory>
-  void construct ( InPlaceFactory const& aFactory, boost::__in_place_factory_base__* )
-  {
-    aFactory.template apply<X>(contained_);
-  }
-
-  template<class TypedInPlaceFactory>
-  void construct ( TypedInPlaceFactory const& aFactory, boost::__typed_in_place_factory_base__* )
-  {
-    aFactory.apply(contained_);
-  }
-
-  X* uninitialized_storage() { return static_cast<X*>(new char[sizeof(X)]) ; }
-
-  X* contained_ ;
-};
-```
-
-[endsect]
-[section User-side Usage]
-
-End users pass to the container an instance of a factory object holding the actual parameters needed to construct the
-contained object directly within the container. For this, the helper template function `in_place` is used.
-
-The call `in_place(a0,a1,a2,...,an)` constructs a (non-typed) `in_place_factory` instance with the given argument list.
-
-The call `in_place<T>(a0,a1,a2,...,an)` constructs a `typed_in_place_factory` instance with the given argument list for the
-type `T`.
-
-```
-void foo()
-{
-  C a( in_place(123, "hello") ) ;    // in_place_factory passed
-  C b( in_place<X>(456, "world") ) ; // typed_in_place_factory passed
-}
-
-```
-
-[endsect]
-
-[/===============]
-[#boost.typed_in_place_factory_base]
-[xinclude tmp/in_place_factory_reference.xml]
-[/===============]
-
-[section Acknowledgments]
-
-Copyright Fernando Luis Cacciola Carballal, 2004
-
-[endsect]
-[endsect]

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doc/main.qbk

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-[/
-    Copyright (c) 2021, Alan Freitas
-
-    Distributed under the Boost Software License, Version 1.0. (See accompanying
-    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    Official repository: https://github.com/boostorg/utility
-]
-
-[/#############################################
-                  DOCUMENT INFO
-###############################################]
-
-[library Boost.Utility
-    [id utility]
-    [quickbook 1.6]
-    [copyright 2001 Beman Dawes]
-    [purpose Utility Library]
-    [license
-        Distributed under the Boost Software License, Version 1.0.
-        (See accompanying file LICENSE_1_0.txt or copy at
-        [@http://www.boost.org/LICENSE_1_0.txt])
-    ]
-    [authors [Dawes, Beman]]
-    [category template]
-    [category generic]
-]
-
-[template mdash[]'''—''']
-[template ndash[]'''–''']
-[template sect[]'''§''']
-[template hellip[]'''…''']
-
-[template indexterm1[term1]'''<indexterm><primary>'''[term1]'''</primary></indexterm>''']
-[template indexterm2[term1 term2]'''<indexterm><primary>'''[term1]'''</primary><secondary>'''[term2]'''</secondary></indexterm>''']
-
-[template include_file[path][^<'''<ulink url="https://github.com/boostorg/utility/blob/master/include/'''[path]'''">'''[path]'''</ulink>'''>]]
-[template issue[n]'''<ulink url="https://github.com/boostorg/utility/issues/'''[n]'''">#'''[n]'''</ulink>''']
-
-[/ Named Requirements ]
-
-[def __Handler__                ['Handler]]
-[def __Allocator__              [@https://en.cppreference.com/w/cpp/named_req/Allocator ['Allocator]]]
-[def __CopyAssignable__         [@https://en.cppreference.com/w/cpp/named_req/CopyAssignable ['CopyAssignable]]]
-[def __CopyConstructible__      [@https://en.cppreference.com/w/cpp/named_req/CopyConstructible ['CopyConstructible]]]
-[def __Copyable__               [@https://en.cppreference.com/w/cpp/concepts/copyable ['Copyable]]]
-[def __DefaultConstructible__   [@https://en.cppreference.com/w/cpp/named_req/DefaultConstructible ['DefaultConstructible]]]
-[def __Hash__                   [@https://en.cppreference.com/w/cpp/named_req/Hash ['Hash]]]
-[def __InputIterator__          [@https://en.cppreference.com/w/cpp/named_req/InputIterator ['InputIterator]]]
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-[def __MoveConstructible__      [@https://en.cppreference.com/w/cpp/named_req/MoveConstructible ['MoveConstructible]]]
-[def __RandomAccessIterator__   [@https://en.cppreference.com/w/cpp/named_req/RandomAccessIterator ['RandomAccessIterator]]]
-[def __Regular__                [@https://en.cppreference.com/w/cpp/concepts/regular ['Regular]]]
-[def __Swappable__              [@https://en.cppreference.com/w/cpp/named_req/Swappable ['Swappable]]]
-
-[/ Boost types ]
-[/ (Macros are defined here because these macros are often referenced in other components) ]
-[/ (operators macros link to the a table of operators because there's no doxygen reference for the operators) ]
-
-[def __BOOST_BINARY__ [link sec:BOOST_BINARY `BOOST_BINARY`]]
-[def __in_place_factory__ [link sec:in_place_factory `in_place_factory`]]
-
-[def __boost_base_from_member__ [link boost.base_from_member `boost::base_from_member`]]
-[def __boost_call_traits__ [link boost.call_traits `boost::call_traits`]]
-[def __boost_result_of__ [link boost.result_of `boost::result_of`]]
-[def __boost_tr1_result_of__ [link boost.tr1_result_of `boost::tr1_result_of`]]
-[def __boost_string_view__ [link boost.basic_string_view `boost::string_view`]]
-[def __boost_basic_string_view__ [link boost.basic_string_view `boost::basic_string_view`]]
-
-[def __additive1__ [link sec:arithmetic `additive1`]]
-[def __additive2__ [link sec:arithmetic `additive2`]]
-[def __arithmetic1__ [link sec:arithmetic `arithmetic1`]]
-[def __arithmetic2__ [link sec:arithmetic `arithmetic2`]]
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-[def __basic_string_view__ [link boost.basic_string_view `basic_string_view`]]
-[def __bidirectional_iteratable__ [link sec:arithmetic `bidirectional_iteratable`]]
-[def __bidirectional_iterator_helper__ [link sec:arithmetic `bidirectional_iterator_helper`]]
-[def __bitwise1__ [link sec:arithmetic `bitwise1`]]
-[def __bitwise2__ [link sec:arithmetic `bitwise2`]]
-[def __call_traits__ [link boost.call_traits `call_traits`]]
-[def __call_traits_T__ [link boost.call_traits `call_traits<T>`]]
-[def __call_traits_lt__T___ [link boost.call_traits `call_traits<T&>`]]
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-[def __equal_pointees_t__ [link sec:arithmetic `equal_pointees_t`]]
-[def __equality_comparable1__ [link sec:arithmetic `equality_comparable1`]]
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-[def __equivalent2__ [link sec:arithmetic `equivalent2`]]
-[def __euclidean_ring_operators1__ [link sec:arithmetic `euclidean_ring_operators1`]]
-[def __euclidean_ring_operators2__ [link sec:arithmetic `euclidean_ring_operators2`]]
-[def __field_operators1__ [link sec:arithmetic `field_operators1`]]
-[def __field_operators2__ [link sec:arithmetic `field_operators2`]]
-[def __forward_iteratable__ [link sec:arithmetic `forward_iteratable`]]
-[def __forward_iterator_helper__ [link sec:arithmetic `forward_iterator_helper`]]
-[def __get__ [link boost.get `get`]]
-[def __hash_range__ [link boost.hash_range `hash_range`]]
-[def __hash_value__ [link boost.hash_value `hash_value`]]
-[def __in_place_factory_base__ [link boost.in_place_factory_base `in_place_factory_base`]]
-[def __incrementable__ [link sec:arithmetic `incrementable`]]
-[def __indexable__ [link sec:arithmetic `indexable`]]
-[def __initialized__ [link boost.initialized `initialized`]]
-[def __initialized_value__ [link boost.initialized_value `initialized_value`]]
-[def __initialized_value_t__ [link boost.initialized_value_t `initialized_value_t`]]
-[def __input_iteratable__ [link sec:arithmetic `input_iteratable`]]
-[def __input_iterator_helper__ [link sec:arithmetic `input_iterator_helper`]]
-[def __integer_arithmetic1__ [link sec:arithmetic `integer_arithmetic1`]]
-[def __integer_arithmetic2__ [link sec:arithmetic `integer_arithmetic2`]]
-[def __integer_multiplicative1__ [link sec:arithmetic `integer_multiplicative1`]]
-[def __integer_multiplicative2__ [link sec:arithmetic `integer_multiplicative2`]]
-[def __is_chained_base__ [link sec:arithmetic `is_chained_base`]]
-[def __less_pointees__ [link boost.less_pointees `less_pointees`]]
-[def __less_pointees_t__ [link boost.less_pointees_t `less_pointees_t`]]
-[def __less_than_comparable1__ [link sec:arithmetic `less_than_comparable1`]]
-[def __less_than_comparable2__ [link sec:arithmetic `less_than_comparable2`]]
-[def __multiplicative1__ [link sec:arithmetic `multiplicative1`]]
-[def __multiplicative2__ [link sec:arithmetic `multiplicative2`]]
-[def __operator_eq__eq__ [link sec:arithmetic `operator==`]]
-[def __operator_gt__ [link sec:arithmetic `operator_gt_`]]
-[def __operator_gt__eq__ [link sec:arithmetic `operator&gt;`]]
-[def __operator_lt__ [link sec:arithmetic `operator&lt;`]]
-[def __operator_lt__eq__ [link sec:arithmetic `operator&lt;=`]]
-[def __operator_lt__lt__ [link sec:arithmetic `operator&lt;&lt;`]]
-[def __operator_not__eq__ [link sec:arithmetic `operator!=`]]
-[def __operators2__ [link sec:arithmetic `operators2`]]
-[def __operators__ [link sec:arithmetic `operators`]]
-[def __operators_lt_T__ [link sec:arithmetic `operators<T,T>`]]
-[def __ordered_euclidean_ring_operators1__ [link sec:arithmetic `ordered_euclidean_ring_operators1`]]
-[def __ordered_euclidean_ring_operators2__ [link sec:arithmetic `ordered_euclidean_ring_operators2`]]
-[def __ordered_euclidian_ring_operators1__ [link sec:arithmetic `ordered_euclidian_ring_operators1`]]
-[def __ordered_euclidian_ring_operators2__ [link sec:arithmetic `ordered_euclidian_ring_operators2`]]
-[def __ordered_field_operators1__ [link sec:arithmetic `ordered_field_operators1`]]
-[def __ordered_field_operators2__ [link sec:arithmetic `ordered_field_operators2`]]
-[def __ordered_ring_operators1__ [link sec:arithmetic `ordered_ring_operators1`]]
-[def __ordered_ring_operators2__ [link sec:arithmetic `ordered_ring_operators2`]]
-[def __output_iteratable__ [link sec:arithmetic `output_iteratable`]]
-[def __output_iterator_helper__ [link sec:arithmetic `output_iterator_helper`]]
-[def __partially_ordered1__ [link sec:arithmetic `partially_ordered1`]]
-[def __partially_ordered2__ [link sec:arithmetic `partially_ordered2`]]
-[def __random_access_iteratable__ [link sec:arithmetic `random_access_iteratable`]]
-[def __random_access_iterator_helper__ [link sec:arithmetic `random_access_iterator_helper`]]
-[def __result_of__ [link boost.result_of `result_of`]]
-[def __ring_operators1__ [link sec:arithmetic `ring_operators1`]]
-[def __ring_operators2__ [link sec:arithmetic `ring_operators2`]]
-[def __shiftable1__ [link sec:arithmetic `shiftable1`]]
-[def __shiftable2__ [link sec:arithmetic `shiftable2`]]
-[def __string_ref__ [link boost.basic_string_view `string_ref`]]
-[def __string_view__ [link boost.basic_string_view `string_view`]]
-[def __swap__ [link sec:arithmetic `swap`]]
-[def __totally_ordered1__ [link sec:arithmetic `totally_ordered1`]]
-[def __totally_ordered2__ [link sec:arithmetic `totally_ordered2`]]
-[def __tr1_result_of__ [link boost.tr1_result_of `tr1_result_of`]]
-[def __typed_in_place_factory_base__ [link boost.typed_in_place_factory_base `typed_in_place_factory_base`]]
-[def __u16string_ref__ [link boost.basic_string_view `u16string_ref`]]
-[def __u16string_view__ [link boost.basic_string_view `u16string_view`]]
-[def __u32string_ref__ [link boost.basic_string_view `u32string_ref`]]
-[def __u32string_view__ [link boost.basic_string_view `u32string_view`]]
-[def __unit_steppable__ [link sec:arithmetic `unit_steppable`]]
-[def __value_initialized__ [link boost.value_initialized `value_initialized`]]
-[def __wstring_ref__ [link boost.basic_string_view `wstring_ref`]]
-[def __wstring_view__ [link boost.basic_string_view `wstring_view`]]
-
-[/ std:: types ]
-
-[def __assert__       [@https://en.cppreference.com/w/cpp/error/assert `assert`]]
-[def __decltype__       [@https://en.cppreference.com/w/cpp/language/decltype `decltype`]]
-[def __initializer_list__       [@https://en.cppreference.com/w/cpp/utility/initializer_list `std::initializer_list`]]
-[def __nullptr__       [@https://en.cppreference.com/w/cpp/language/nullptr `nullptr`]]
-[def __std_addressof__              [@https://en.cppreference.com/w/cpp/memory/addressof `std::addressof`]]
-[def __std_array__              [@https://en.cppreference.com/w/cpp/container/array `std::array`]]
-[def __std_basic_string__             [@https://en.cppreference.com/w/cpp/string/basic_string `std::basic_string`]]
-[def __std_basic_string_view__                   [@https://en.cppreference.com/w/cpp/string/basic_string_view `std::basic_string_view`]]
-[def __std_binder1st__                [@https://en.cppreference.com/w/cpp/utility/functional/binder12 `std::binder1st`]]
-[def __std_complex__            [@https://en.cppreference.com/w/cpp/numeric/complex `std::complex`]]
-[def __std_declval__            [@https://en.cppreference.com/w/cpp/utility/declval `std::declval`]]
-[def __std_enable_if__            [@https://en.cppreference.com/w/cpp/types/enable_if `std::enable_if`]]
-[def __std_enable_if_t__            [@https://en.cppreference.com/w/cpp/types/enable_if `std::enable_if_t`]]
-[def __std_fill__                     [@https://en.cppreference.com/w/cpp/algorithm/fill `std::fill`]]
-[def __std_hash__               [@https://en.cppreference.com/w/cpp/utility/hash `std::hash`]]
-[def __std_initializer_list__       [@https://en.cppreference.com/w/cpp/utility/initializer_list `std::initializer_list`]]
-[def __std_is_nothrow_constructible__ [@https://en.cppreference.com/w/cpp/types/is_constructible `std::is_nothrow_constructible`]]
-[def __std_make_pair__                [@https://en.cppreference.com/w/cpp/utility/pair/make_pair `std::make_pair`]]
-[def __std_memory_resource__    [@https://en.cppreference.com/w/cpp/memory/memory_resource `std::pmr::memory_resource`]]
-[def __std_memset__                   [@https://en.cppreference.com/w/cpp/string/byte/memset `std::memset`]]
-[def __std_next__                   [@https://en.cppreference.com/w/cpp/iterator/next `std::next`]]
-[def __std_nullptr_t__                [@https://en.cppreference.com/w/cpp/types/nullptr_t `std::nullptr_t`]]
-[def __std_ostream__                  [@https://en.cppreference.com/w/cpp/io/basic_ostream `std::ostream`]]
-[def __std_ostream__            [@https://en.cppreference.com/w/cpp/io/basic_ostream `__std_ostream__`]]
-[def __std_pair__                     [@https://en.cppreference.com/w/cpp/utility/pair `std::pair`]]
-[def __std_polymorphic_allocator__ [@https://en.cppreference.com/w/cpp/memory/polymorphic_allocator `std::pmr::polymorphic_allocator`]]
-[def __std_prev__                   [@https://en.cppreference.com/w/cpp/iterator/prev `std::prev`]]
-[def __std_ptrdiff_t__                [@https://en.cppreference.com/w/cpp/types/ptrdiff_t `std::ptrdiff_t`]]
-[def __std_remove__                [@https://en.cppreference.com/w/cpp/algorithm/remove `std::remove`]]
-[def __std_result_of__                [@https://en.cppreference.com/w/cpp/types/result_of `std::result_of`]]
-[def __std_sort__          [@https://en.cppreference.com/w/cpp/algorithm/sort `std::sort`]]
-[def __std_streambuf__          [@https://en.cppreference.com/w/cpp/header/streambuf `std::streambuf`]]
-[def __std_string__                   [@https://en.cppreference.com/w/cpp/string/basic_string `std::string`]]
-[def __std_string_view__                   [@https://en.cppreference.com/w/cpp/string/basic_string_view `std::string_view`]]
-[def __std_unary_function__      [@https://en.cppreference.com/w/cpp/utility/functional/unary_function `std::unary_function`]]
-[def __std_unordered_map__      [@https://en.cppreference.com/w/cpp/container/unordered_map `std::unordered_map`]]
-[def __std_uses_allocator__     [@https://en.cppreference.com/w/cpp/memory/uses_allocator `std::uses_allocator`]]
-[def __std_vector__             [@https://en.cppreference.com/w/cpp/container/vector `std::vector`]]
-
-[/ Dingbats ]
-
-[def __good__ [role green \u2714]]
-[def __bad__  [role red   \u2718]]
-
-[/-----------------------------------------------------------------------------]
-
-[include overview.qbk]
-
-[include utilities.qbk]
-
-[include other.qbk]
-
-[#sec:reference]
-[section:ref Quick Reference]
-
-[/ Reference table ]
-[xinclude quickref.xml]
-
-[/ Generated reference files ]
-[/ [include reference.qbk] ]
-
-[/ Generated index ]
-[/ [xinclude index.xml] ]
-
-[endsect]

doc/other.qbk

@@ -1,29 +0,0 @@
-[/
-    Copyright (c) 2021 Alan de Freitas (alandefreitas@gmail.com)
-
-    Distributed under the Boost Software License, Version 1.0. (See accompanying
-    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    Official repository: https://github.com/boostorg/utility
-]
-
-[section:utilities More Utilities]
-
-Some utilities have been moved from Boost.Utilities to more appropriate Boost libraries:
-
-# Moved to [@boost:/libs/core/index.html Boost.Core]
-    # [@boost:/libs/core/doc/html/core/addressof.html addressof]
-    # [@boost:/libs/core/doc/html/core/checked_delete.html checked_delete]
-    # [@boost:/libs/core/doc/html/core/enable_if.html enable_if]
-    # [@boost:/libs/core/doc/html/core/noncopyable.html noncopyable]
-# Moved to [@boost:/libs/type_traits/index.html Boost.TypeTraits]
-    # [@boost:/libs/type_traits/doc/html/boost_typetraits/reference/declval.html declval]
-# Moved to [@boost:/libs/iterator/index.html Boost.Iterator]
-    # [@boost:/libs/iterator/doc/generator_iterator.htm generator iterator adaptors]
-    # [@boost:/libs/iterator/doc/html/iterator/algorithms/next_prior.html next/prior]
-# Moved to [@boost:/libs/io/index.html Boost.IO]
-    # [@boost:/libs/io/doc/html/io.html ostream_string]
-# Moved to [@boost:/libs/throw_exception/index.html Boost.ThrowException]
-    # [@boost:/libs/throw_exception/doc/html/throw_exception.html#using_boost_throw_exception throw_exception]
-
-[endsect]

doc/overview.qbk

@@ -1,46 +0,0 @@
-[/
-    Copyright (c) 2021 Alan de Freitas (alandefreitas@gmail.com)
-
-    Distributed under the Boost Software License, Version 1.0. (See accompanying
-    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    Official repository: https://github.com/boostorg/utility
-]
-
-[section Overview]
-[block'''<?dbhtml stop-chunking?>''']
-
-Boost.Utility is a collection of small, useful, and general-purpose components for language support.
-
-Over time,
-
-* several components have been moved to more appropriate Boost libraries and
-* many of these components had variants accepted into the C++ standard
-
-When the component has moved to another Boost library, Boost.Utility headers still lead to the appropriate headers
-in other libraries.
-
-[table:id Components
-    [[Boost.Utility] [Moved to Boost] [C++ Standard variant]]
-    [[[@boost:/libs/core/doc/html/core/addressof.html `addressof`]] [[@boost:/libs/core/index.html Boost.Core]] [C++11 __std_addressof__]]
-    [[__base_from_member__]      [] []]
-    [[__BOOST_BINARY__] [] [C++14 [@https://en.cppreference.com/w/cpp/language/integer_literal Binary integer literal]]]
-    [[__call_traits__]      [] []]
-    [[[@boost:/libs/core/doc/html/core/checked_delete.html `checked_delete`]] [[@boost:/libs/core/index.html Boost.Core]] []]
-    [[__compressed_pair__]      [] []]
-    [[[@boost:/libs/type_traits/doc/html/boost_typetraits/reference/declval.html `declval`]] [[@boost:/libs/type_traits/index.html Boost.TypeTraits]] [C++11 __std_declval__]]
-    [[[@boost:/libs/core/doc/html/core/enable_if.html `enable_if`]] [[@boost:/libs/core/index.html Boost.Core]] [C++11 __std_enable_if__]]
-    [[[@boost:/libs/iterator/doc/generator_iterator.htm generator iterator adaptors]] [[@boost:/libs/iterator/index.html Boost.Iterator]] []]
-    [[__in_place_factory__]      [] []]
-    [[[@boost:/libs/iterator/index.html `iterator_adaptors`]]      [[@boost:/libs/iterator/index.html Boost.Iterator]] []]
-    [[[@boost:/libs/iterator/doc/html/iterator/algorithms/next_prior.html `next` / `prior`]] [[@boost:/libs/iterator/index.html Boost.Iterator]] [C++11 __std_next__ / __std_prev__]]
-    [[[@boost:/libs/core/doc/html/core/noncopyable.html `noncopyable`]] [[@boost:/libs/core/index.html Boost.Core]] []]
-    [[[link sec:operators `operators`]]      [] []]
-    [[[@boost:/libs/io/doc/html/io.html `ostream_string`]] [[@boost:/libs/io/index.html Boost.IO]] []]
-    [[__result_of__]      [] [C++11 __std_result_of__]]
-    [[__string_view__]      [] [C++17 __std_string_view__]]
-    [[[@boost:/libs/throw_exception/doc/html/throw_exception.html#using_boost_throw_exception `throw_exception`]] [[@boost:/libs/throw_exception/index.html Boost.ThrowException]] []]
-    [[[link sec:value_init `value_init`]]      [] [C++11 [@https://en.cppreference.com/w/cpp/language/list_initialization List initialization]]]
-]
-
-[endsect]

doc/quickref.xml

@@ -1,497 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE library PUBLIC "-//Boost//DTD BoostBook XML V1.0//EN" "../../../tools/boostbook/dtd/boostbook.dtd">
-
-<!--
-    Copyright (c) 2021, Alan Freitas
-
-    Distributed under the Boost Software License, Version 1.0.
-
-    See accompanying file LICENSE_1_0.txt
-    or copy at http://boost.org/LICENSE_1_0.txt
--->
-
-<!-- See also https://tdg.docbook.org/tdg/5.1/ -->
-
-<!-- Doxygen reference -->
-<informaltable frame="all">
-    <tgroup cols="4">
-        <colspec colname="a"/>
-        <colspec colname="b"/>
-        <colspec colname="c"/>
-        <colspec colname="d"/>
-
-        <thead>
-            <row>
-                <entry valign="center" namest="a" nameend="a">
-                    <bridgehead renderas="sect2">Base from Member</bridgehead>
-                </entry>
-                <entry valign="center" namest="b" nameend="b">
-                    <bridgehead renderas="sect2">Call Traits</bridgehead>
-                </entry>
-                <entry valign="center" namest="c" nameend="c">
-                    <bridgehead renderas="sect2">Compressed Pair</bridgehead>
-                </entry>
-                <entry valign="center" namest="d" nameend="d">
-                    <bridgehead renderas="sect2">In-place Factory</bridgehead>
-                </entry>
-            </row>
-        </thead>
-        <tbody>
-            <row>
-                <!-- base_from_member -->
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Classes</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.base_from_member">base_from_member</link>
-                        </member>
-                    </simplelist>
-                </entry>
-
-                <!-- call_traits -->
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Type Traits</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.call_traits">call_traits</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.call_traits">call_traits&lt;T&amp;&gt;</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.call_traits">call_traits&lt;T[N]&gt;
-                            </link>
-                        </member>
-                        <member>
-                            <link linkend="boost.call_traits">call_traits&lt;const
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-                <entry valign="top">
-                    <bridgehead renderas="sect3">Classes</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.compressed_pair">compressed_pair</link>
-                        </member>
-                    </simplelist>
-
-                    <bridgehead renderas="sect3">Functions</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="header.boost.detail.compressed_pair_hpp">swap</link>
-                        </member>
-                    </simplelist>
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-        <colspec colname="e"/>
-
-        <thead>
-            <row>
-                <entry valign="center" namest="a" nameend="e">
-                    <bridgehead renderas="sect2">Operators</bridgehead>
-                </entry>
-            </row>
-        </thead>
-
-        <tbody>
-            <row>
-                <entry valign="top">
-                    <!-- 13 classes per cell -->
-                    <bridgehead renderas="sect3">Classes (1 of 5)</bridgehead>
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-                            <link linkend="sec:arithmetic">additive1</link>
-                        </member>
-                        <member>
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-                        <member>
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-                        </member>
-                        <member>
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-                        <member>
-                            <link linkend="sec:arithmetic">
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-                            <link linkend="sec:arithmetic">euclidean_ring_operators1
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-                            <link linkend="sec:arithmetic">
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-                                ordered_euclidean_ring_operators2
-                            </link>
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-                                ordered_euclidian_ring_operators1
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-                            <link linkend="sec:arithmetic">
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-                            <link linkend="sec:arithmetic">shiftable1</link>
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-                        </member>
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-                            <link linkend="sec:arithmetic">totally_ordered2</link>
-                        </member>
-                        <member>
-                            <link linkend="sec:arithmetic">unit_steppable</link>
-                        </member>
-                    </simplelist>
-                    <bridgehead renderas="sect3">Type Traits</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="sec:arithmetic">is_chained_base</link>
-                        </member>
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-    <tgroup cols="5">
-        <colspec colname="a"/>
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-        <colspec colname="d"/>
-        <colspec colname="e"/>
-
-        <thead>
-            <row>
-                <entry valign="center" namest="a" nameend="a">
-                    <bridgehead renderas="sect2">Result of</bridgehead>
-                </entry>
-                <entry valign="center" namest="b" nameend="d">
-                    <bridgehead renderas="sect2">String View</bridgehead>
-                </entry>
-                <entry valign="center" namest="e" nameend="e">
-                    <bridgehead renderas="sect2">Value Init</bridgehead>
-                </entry>
-            </row>
-        </thead>
-
-        <tbody>
-            <row>
-                <!-- result_of -->
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Type Traits</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.result_of">result_of</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.tr1_result_of">tr1_result_of</link>
-                        </member>
-                    </simplelist>
-                </entry>
-
-                <!-- string_view -->
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Aliases</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.basic_string_view">string_view</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">u16string_ref</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">u16string_view</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">u32string_ref</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">u32string_view</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">wstring_ref</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">wstring_view</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">string_ref</link>
-                        </member>
-                    </simplelist>
-                </entry>
-
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Classes</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
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-                        </member>
-                        <member>
-                            <link linkend="boost.basic_string_view">basic_string_view</link>
-                        </member>
-                    </simplelist>
-                    <bridgehead renderas="sect3">Functions</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="boost.hash_range">hash_range</link>
-                        </member>
-                        <member>
-                            <link linkend="boost.hash_value">hash_value</link>
-                        </member>
-                    </simplelist>
-                </entry>
-
-                <entry valign="top">
-                    <bridgehead renderas="sect3">Operators</bridgehead>
-                    <simplelist type="vert" columns="1">
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator==</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator!=</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator&lt;</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator&lt;=</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator&gt;</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator&gt;=</link>
-                        </member>
-                        <member>
-                            <link linkend="header.boost.utility.string_view_hpp">operator&lt;&lt;</link>
-                        </member>
-                    </simplelist>
-                </entry>
-
-                <!-- value_init -->
-                <entry valign="top">
-                        <bridgehead renderas="sect3">Classes</bridgehead>
-                        <simplelist type="vert" columns="1">
-                            <member>
-                                <link linkend="boost.initialized">initialized</link>
-                            </member>
-                            <member>
-                                <link linkend="boost.initialized_value_t">initialized_value_t</link>
-                            </member>
-                            <member>
-                                <link linkend="boost.value_initialized">value_initialized</link>
-                            </member>
-                        </simplelist>
-                        <bridgehead renderas="sect3">Functions</bridgehead>
-                        <simplelist type="vert" columns="1">
-                            <member>
-                                <link linkend="header.boost.utility.value_init_hpp">get</link>
-                            </member>
-                            <member>
-                                <link linkend="header.boost.utility.value_init_hpp">swap</link>
-                            </member>
-                        </simplelist>
-                        <bridgehead renderas="sect3">Constants</bridgehead>
-                        <simplelist type="vert" columns="1">
-                            <member>
-                                <link linkend="boost.initialized_value">initialized_value</link>
-                            </member>
-                        </simplelist>
-                </entry>
-            </row>
-        </tbody>
-    </tgroup>
-</informaltable>

doc/result_of.qbk

@@ -1,421 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[section Result of]
-[/===============]
-
-[section Introduction]
-
-The class template __result_of__ helps determine the type of a
-call expression. For example, given an lvalue `f` of type `F`
-and lvalues `t1`,`t2`, ..., `tN` of types `T1`, `T2`, ..., `TN`,
-respectively, the type __result_of__`<F(T1, T2, ..., TN)>::type` defines
-the result type of the expression `f(t1, t2, ...,tN)`.
-
-This implementation permits the type `F` to be a function pointer,
-function reference, member function pointer, or class type. By default,
-N may be any value between 0 and 16. To change the upper limit, define
-the macro `BOOST_RESULT_OF_NUM_ARGS` to the maximum value for N. Class
-template __result_of__ resides in the header
-[@../../../../boost/utility/result_of.hpp `<boost/utility/result_of.hpp>`].
-
-If your compiler's support for __decltype__ is adequate, __result_of__
-automatically uses it to deduce the type of the call expression, in
-which case __result_of__`<F(T1, T2, ..., TN)>::type` names the type
-__decltype__`(boost::declval<F>()(boost::declval<T1>(),
-boost::declval<T2>(), ..., boost::declval<TN>()))`, as in the
-following example.
-
-```
-struct functor {
-    template<class T>
-    T operator()(T x)
-    {
-        return x;
-    }
-};
-
-typedef __boost_result_of__<functor(int)>::type type; // type is int
-```
-
-You can test whether __result_of__ is using __decltype__ by checking if
-the macro `BOOST_RESULT_OF_USE_DECLTYPE` is defined after
-including `result_of.hpp`. You can also force __result_of__ to use
-__decltype__ by defining `BOOST_RESULT_OF_USE_DECLTYPE` prior
-to including `result_of.hpp`.
-
-If __decltype__ is not used, then automatic result type deduction of function
-objects is not possible. Instead, __result_of__ uses the following protocol
-to allow the programmer to specify a type. When `F` is a class type with a
-member type `result_type`, `result_of<F(T1, T2, ..., TN)>::type` is
-`F::result_type`. When `F` does not contain `result_type`,
-`result_of<F(T1, T2, ..., TN)>::type` is
-`F::result<F(T1, T2, ..., TN)>::type` when
-`N > 0` or `void` when `N = 0`.
-
-Note that it is the responsibility of the programmer to ensure that
-function objects accurately advertise their result
-type via this protocol, as in the following example.
-
-```
-struct functor {
-    template <class> struct result;
-
-    template<class F, class T>
-    struct result<F(T)> {
-        typedef T type;
-    };
-
-    template<class T>
-    T operator()(T x)
-    {
-        return x;
-    }
-};
-
-typedef __boost_result_of__<functor(int)>::type type; // type is int
-```
-
-Since __decltype__ is a language feature standardized in C++11, if you are
-writing a function object to be used with __result_of__, for maximum
-portability, you might consider following the above protocol
-even if your compiler has proper __decltype__ support.
-
-If you wish to continue to use the protocol on compilers that
-support __decltype__, there are two options:
-
-* You can use __boost_tr1_result_of__, which is also defined in
-[@../../../boost/utility/result_of.hpp `<boost/utility/result_of.hpp>`].
-
-* Alternatively, you can define the macro `BOOST_RESULT_OF_USE_TR1`,
-which causes __result_of__ to use the protocol described above instead
-of __decltype__. If you choose to follow the protocol, take care to
-ensure that the `result_type` and `result<>` members accurately
-represent the return type of `operator()` given a call expression.
-
-Additionally, __boost_result_of__ provides a third mode of operation,
-which some users may find convenient. When
-`BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK` is defined,
-__boost_result_of__ behaves as follows. If the function object has a member
-type `result_type` or member template `result<>`, then __boost_result_of__
-will use the TR1 protocol.
-
-Otherwise, __boost_result_of__ will use __decltype__. Using TR1 with
-a __decltype__ fallback may workaround certain problems at the cost of portability.
-For example:
-
-* Deficient compiler: If your code requires __boost_result_of__ to work
-with incomplete return types but your compiler's __decltype__ implementation
-does not support incomplete return types, then you can use the TR1 protocol
-as a workaround. Support for incomplete return types was added late in the
-C++11 standardization process
-(see [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf N3276])
-and is not implemented by some compilers.
-
-* Deficient legacy code: If your existing TR1 function object advertises a different type than
-the actual result type deduced by __decltype__, then using TR1 with a __decltype__ fallback
-will allow you to work with both your existing TR1 function objects and new C++11
-function object. This situation could occur if your legacy function objects
-misused the TR1 protocol. See the documentation on known [link sec:result_of_tr1_diff differences]
-between __boost_result_of__ and TR1.
-
-* [#BOOST_NO_RESULT_OF] This implementation of __result_of__ requires class template
-partial specialization, the ability to parse function types properly, and support
-for SFINAE. If __result_of__ is not supported by your compiler, including the header
-[@../../../boost/utility/result_of.hpp `<boost/utility/result_of.hpp>`] will define
-the macro `BOOST_NO_RESULT_OF`.
-
-For additional information about __result_of__, see the C++ Library
-Technical Report, [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf N1836],
-or, for motivation and design rationale, the __result_of__
-[@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2003/n1454.html proposal].
-
-[endsect]
-
-[#sec:result_of_guidelines]
-[section Usage guidelines for __boost_result_of__]
-
-The following are general suggestions about when and how to use __boost_result_of__.
-
-# If you are targeting C++11 and are not concerned about portability to
-non-compliant compilers or previous versions of the standard, then use
-`__std_result_of__`. If `__std_result_of__` meets your needs, then
-there's no reason to stop using it.
-
-# If you are targeting C++11 but may port your code to legacy compilers
-at some time in the future, then use __boost_result_of__ with __decltype__.
-When __decltype__ is used __boost_result_of__ and `__std_result_of__` are usually
-interchangeable. See the documentation on known [link sec:result_of_cxx11_diff differences]
-between __boost_result_of__ and C++11 __std_result_of__.
-
-# If compiler portability is required, use __boost_result_of__ with the TR1 protocol
-
-Regardless of how you configure __boost_result_of__, it is
-important to bear in mind that the return type of a
-function may change depending on its arguments, and
-additionally, the return type of a member function may
-change depending on the cv-qualification of the
-object. __boost_result_of__ must be passed
-the appropriately cv-qualified types in order to
-deduce the corresponding return type.
-
-For example:
-
-```
-struct functor {
-    int& operator()(int);
-    int const& operator()(int) const;
-
-    float& operator()(float&);
-    float const& operator()(float const&);
-};
-
-typedef __boost_result_of__<
-    functor(int)
->::type type1; // type1 is int &
-
-typedef __boost_result_of__<
-    const functor(int)
->::type type2; // type2 is int const &
-
-typedef __boost_result_of__<
-    functor(float&)
->::type type3; // type3 is float &
-
-typedef __boost_result_of__<
-    functor(float const&)
->::type type4; // type4 is float const &
-```
-
-[endsect]
-
-[#sec:result_of_tr1_protocol_guidelines]
-[section Usage guidelines for the TR1 result_of protocol]
-
-On compliant C++11 compilers, __boost_result_of__ can
-use __decltype__ to deduce the type of any
-call expression, including calls to function
-objects. However, on pre-C++11 compilers or on
-compilers without adequate decltype support,
-additional scaffolding is needed from function
-objects as described above. The following are
-suggestions about how to use the TR1 protocol.
-
-* When the return type does not depend on the
-argument types or the cv-qualification of the
-function object, simply
-define `result_type`. There is no need
-to use the `result` template unless the
-return type varies.</li>
-
-* Use the protocol specified type when defining
-function prototypes. This can help ensure the
-actual return type does not get out of sync with
-the protocol specification. For example:
-
-```
-struct functor {
-    typedef int result_type;
-    result_type operator()(int);
-};
-```
-
-* Always specify the `result` specialization near the corresponding
-`operator()` overload. This can make it easier to keep the specializations
-in sync with the overloads. For example:
-
-```
-struct functor {
-    template<class> struct result;
-
-    template<class F>
-    struct result<F(int)> {
-        typedef int& type;
-    };
-    result<functor(int)>::type operator()(int);
-
-    template<class F>
-    struct result<const F(int)> {
-        typedef int const& type;
-    };
-    result<const functor(int)>::type operator()(int) const;
-};
-```
-
-* Use type transformations to simplify
-the `result` template specialization. For
-example, the following uses [@../type_traits/doc/html/index.html Boost.TypeTraits]
-to specialize the `result` template for
-a single `operator()` that can be called on
-both a const and non-const function object with
-either an lvalue or rvalue argument.
-
-```
-struct functor {
-    template<class> struct result;
-
-    template<class F, class T>
-    struct result<F(T)>
-        : boost::remove_cv<
-              typename boost::remove_reference<T>::type
-          >
-    {};
-
-    template<class T>
-    T operator()(T const&amp; x) const;
-};
-```
-
-[endsect]
-
-[#sec:result_of_tr1_diff]
-[section Known differences between __boost_result_of__ and __boost_tr1_result_of__]
-
-When using __decltype__, __boost_result_of__ ignores the TR1 protocol and instead deduces the
-return type of function objects directly via __decltype__. In most situations, users
-will not notice a difference, so long as they use the protocol correctly. The following are situations in
-which the type deduced by __boost_result_of__ is known to differ depending on whether
-__decltype__ or the TR1 protocol is used.
-
-TR1 protocol misusage: When using the TR1 protocol, __boost_result_of__ cannot
-detect whether the actual type of a call to a function object is the same as the
-type specified by the protocol, which allows for the possibility of inadvertent
-mismatches between the specified type and the actual type. When using __decltype__,
-these subtle bugs may result in compilation errors. For example:
-
-```
-struct functor {
-   typedef short result_type;
-   int operator()(short);
-};
-
-#ifdef BOOST_RESULT_OF_USE_DECLTYPE
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<__boost_result_of__<functor(short)>::type, int>::value
-));
-
-#else
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<__boost_result_of__<functor(short)>::type, short>::value
-));
-
-#endif
-```
-
-Note that the user can force __boost_result_of__ to use the TR1
-protocol even on platforms that support __decltype__ by
-defining `BOOST_RESULT_OF_USE_TR1`.
-
-Nullary function objects: When using the TR1 protocol, __boost_result_of__
-cannot always deduce the type of calls to nullary function objects, in which case the
-type defaults to void. When using __decltype__, __boost_result_of__ always gives the
-actual type of the call expression. For example:
-
-```
-struct functor {
-   template<class> struct result {
-       typedef int type;
-   };
-   int operator()();
-};
-
-#ifdef BOOST_RESULT_OF_USE_DECLTYPE
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<__boost_result_of__<functor()>::type, int>::value
-));
-
-#else
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<__boost_result_of__<functor()>::type, void>::value
-));
-
-#endif
-```
-
-Note that there are some workarounds for the nullary function problem.
-So long as the return type does not vary, `result_type` can always be used to
-specify the return type regardless of arity. If the return type does vary,
-then the user can specialize __boost_result_of__ itself for nullary calls.
-
-Non-class prvalues and cv-qualification: When using the TR1 protocol, __boost_result_of__ will
-report the cv-qualified type specified by `result_type` or the `result` template regardless of
-the actual cv-qualification of the call expression. When using __decltype__, __boost_result_of__
-will report the actual type of the call expression, which is not cv-qualified when the expression
-is a non-class prvalue. For example:
-
-```
-struct functor {
-   template<class> struct result;
-   template<class F, class T> struct result<F(const T)> {
-       typedef const T type;
-   };
-
-   const short operator()(const short);
-   int const & operator()(int const &);
-};
-
-// Non-prvalue call expressions work the same with or without decltype.
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<
-       __boost_result_of__<functor(int const &)>::type,
-       int const &
-::value
-));
-
-// Non-class prvalue call expressions are not actually cv-qualified,
-// but only the decltype-based result_of reports this accurately.
-
-#ifdef BOOST_RESULT_OF_USE_DECLTYPE
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<
-       __boost_result_of__<functor(const short)>::type,
-       short
-::value
-));
-
-#else
-
-BOOST_STATIC_ASSERT((
-   boost::is_same<
-       __boost_result_of__<functor(const short)>::type,
-       const short
-::value
-));
-
-#endif
-```
-
-[endsect]
-
-[#sec:result_of_cxx11_diff]
-[section Known differences between __boost_result_of__ and C++11 result_of]
-
-When using __decltype__, __boost_result_of__ implements most of the C++11 __std_result_of__
-specification. One known exception is that __boost_result_of__ does not implement the
-requirements regarding pointers to member data.
-
-[endsect]
-
-[/===============]
-[xinclude tmp/result_of_reference.xml]
-[/===============]
-
-[section Acknowledgments]
-
-Created by Doug Gregor. Contributions from Daniel Walker, Eric Niebler, Michel Morin and others.
-
-[endsect]
-
-[endsect]

doc/string_ref.qbk

@@ -0,0 +1,167 @@
+[/
+ / Copyright (c) 2012 Marshall Clow
+ /
+ / Distributed under the Boost Software License, Version 1.0. (See accompanying
+ / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ /]
+
+[article String_Ref
+    [quickbook 1.5]
+    [authors [Clow, Marshall]]
+    [copyright 2012 Marshall Clow]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[/===============]
+[section Overview]
+[/===============]
+
+Boost.StringRef is an implementation of Jeffrey Yaskin's [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html N3442:
+string_ref: a non-owning reference to a string]. 
+
+When you are parsing/processing strings from some external source, frequently you want to pass a piece of text to a procedure for specialized processing. The canonical way to do this is as a `std::string`, but that has certain drawbacks:
+
+1) If you are processing a buffer of text (say a HTTP response or the contents of a file), then you have to create the string from the text you want to pass, which involves memory allocation and copying of data.
+
+2) if a routine receives a constant `std::string` and wants to pass a portion of that string to another routine, then it must create a new string of that substring.
+
+3) A routine receives a constant `std::string` and wants to return a portion of the string, then it must create a new string to return.
+
+`string_ref` is designed to solve these efficiency problems. A `string_ref` is a read-only reference to a contiguous sequence of characters, and provides much of the functionality of `std::string`. A `string_ref` is cheap to create, copy and pass by value, because it does not actually own the storage that it points to. 
+
+A `string_ref` is implemented as a small struct that contains a pointer to the start of the character data and a count. A `string_ref` is cheap to create and cheap to copy.
+
+`string_ref` acts as a container; it includes all the methods that you would expect in a container, including iteration support, `operator []`, `at` and `size`. It can be used with any of the iterator-based algorithms in the STL - as long as you don't need to change the underlying data (`sort` and `remove`, for example, will not work)
+
+Besides generic container functionality, `string_ref` provides a subset of the interface of `std::string`. This makes it easy to replace parameters of type `const std::string &` with `boost::string_ref`. Like `std::string`, `string_ref` has a static member variable named `npos` to denote the result of failed searches, and to mean "the end".
+
+Because a `string_ref` does not own the data that it "points to", it introduces lifetime issues into code that uses it. The programmer must ensure that the data that a `string_ref` refers to exists as long as the `string_ref` does.
+
+[endsect]
+
+
+[/===============]
+[section Examples]
+[/===============]
+
+Integrating `string_ref` into your code is fairly simple. Wherever you pass a `const std::string &` or `std::string` as a parameter, that's a candidate for passing a `boost::string_ref`.
+
+    std::string extract_part ( const std::string &bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == 'C' ) { /* do something */ }
+    
+Let's figure out what happens in this (contrived) example.
+
+First, a temporary string is created from the string literal `"ABCDEFG"`, and it is passed (by reference) to the routine `extract_part`. Then a second string is created in the call `std::string::substr` and returned to `extract_part` (this copy may be elided by RVO). Then `extract_part` returns that string back to the caller (again this copy may be elided). The first temporary string is deallocated, and `front` is called on the second string, and then it is deallocated as well.
+
+Two `std::string`s are created, and two copy operations. That's (potentially) four memory allocations and deallocations, and the associated copying of data.
+
+Now let's look at the same code with `string_ref`:
+
+    boost::string_ref extract_part ( boost::string_ref bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == "C" ) { /* do something */ }
+
+No memory allocations. No copying of character data. No changes to the code other than the types. There are two `string_ref`s created, and two `string_ref`s copied, but those are cheap operations.
+
+[endsect]
+
+
+[/=================]
+[section:reference Reference ]
+[/=================]
+
+The header file "string_ref.hpp" defines a template `boost::basic_string_ref`, and four specializations - for `char` / `wchar_t` / `char16_t` / `char32_t` .
+
+`#include <boost/utility/string_ref.hpp>`
+
+Construction and copying:
+
+    BOOST_CONSTEXPR basic_string_ref ();    // Constructs an empty string_ref
+    BOOST_CONSTEXPR basic_string_ref(const charT* str); // Constructs from a NULL-terminated string
+    BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len); // Constructs from a pointer, length pair
+    template<typename Allocator>
+    basic_string_ref(const std::basic_string<charT, traits, Allocator>& str); // Constructs from a std::string
+    basic_string_ref (const basic_string_ref &rhs);
+    basic_string_ref& operator=(const basic_string_ref &rhs);
+
+`string_ref` does not define a move constructor nor a move-assignment operator because copying a `string_ref` is just a cheap as moving one.
+
+Basic container-like functions:
+
+    BOOST_CONSTEXPR size_type size()     const ;
+    BOOST_CONSTEXPR size_type length()   const ;
+    BOOST_CONSTEXPR size_type max_size() const ;
+    BOOST_CONSTEXPR bool empty()         const ;
+    
+    // All iterators are const_iterators
+    BOOST_CONSTEXPR const_iterator  begin() const ;
+    BOOST_CONSTEXPR const_iterator cbegin() const ;
+    BOOST_CONSTEXPR const_iterator    end() const ;
+    BOOST_CONSTEXPR const_iterator   cend() const ;
+    const_reverse_iterator         rbegin() const ;
+    const_reverse_iterator        crbegin() const ;
+    const_reverse_iterator           rend() const ;
+    const_reverse_iterator          crend() const ;
+
+Access to the individual elements (all of which are const):
+
+    BOOST_CONSTEXPR const charT& operator[](size_type pos) const ;
+    const charT& at(size_t pos) const ;
+    BOOST_CONSTEXPR const charT& front() const ;
+    BOOST_CONSTEXPR const charT& back()  const ;
+    BOOST_CONSTEXPR const charT* data()  const ;
+
+Modifying the `string_ref` (but not the underlying data):
+
+    void clear();
+    void remove_prefix(size_type n);
+    void remove_suffix(size_type n);
+
+Searching:
+
+    size_type find(basic_string_ref s) const ;
+    size_type find(charT c) const ;
+    size_type rfind(basic_string_ref s) const ;
+    size_type rfind(charT c) const ;
+    size_type find_first_of(charT c) const ;
+    size_type find_last_of (charT c) const ;
+        
+    size_type find_first_of(basic_string_ref s) const ;
+    size_type find_last_of(basic_string_ref s) const ;
+    size_type find_first_not_of(basic_string_ref s) const ;
+    size_type find_first_not_of(charT c) const ;
+    size_type find_last_not_of(basic_string_ref s) const ;
+    size_type find_last_not_of(charT c) const ;
+
+String-like operations:
+
+    BOOST_CONSTEXPR basic_string_ref substr(size_type pos, size_type n=npos) const ; // Creates a new string_ref
+    bool starts_with(charT c) const ;
+    bool starts_with(basic_string_ref x) const ;
+    bool ends_with(charT c) const ;
+    bool ends_with(basic_string_ref x) const ;
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.53]
+* Introduced
+    
+
+[endsect]
+
+
+
+

doc/string_view.qbk

@@ -1,209 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[section String View]
-[/===============]
-
-[section Introduction]
-
-The class __boost_string_view__ and other classes derived from __basic_string_view__ represent references to strings or substrings. When you are parsing/processing strings from some external source, frequently you want to pass a piece of text to a procedure for specialized processing. Before __std_string_view__, the canonical way to do this used to be a __std_string__, but that has certain drawbacks:
-
-1) If you are processing a buffer of text (say a HTTP response or the contents of a file), then you have to create the string from the text you want to pass, which involves memory allocation and copying of data.
-
-2) If a routine receives a constant __std_string__ and wants to pass a portion of that string to another routine, then it must create a new string of that substring.
-
-3) If a routine receives a constant __std_string__ and wants to return a portion of the string, then it must create a new string to return.
-
-__boost_string_view__ is designed to solve these efficiency problems. A __boost_string_view__ is a read-only reference to a contiguous sequence of characters, and provides much of the functionality of __std_string__. A __boost_string_view__ is cheap to create, copy and pass by value, because it does not actually own the storage that it points to.
-
-A __boost_string_view__ is implemented as a small struct that contains a pointer to the start of the character `data` and a `count`. A __boost_string_view__ is cheap to create and cheap to copy.
-
-__boost_string_view__ acts as a container; it includes all the methods that you would expect in a container, including iteration support, `operator[]`, `at` and `size`. It can be used with any of the iterator-based algorithms in the STL - as long as you do not need to change the underlying data. For example, __std_sort__ and __std_remove__ will not work.
-
-Besides generic container functionality, __boost_string_view__ provides a subset of the interface of __std_string__. This makes it easy to replace parameters of type `const __std_string__ &` with __boost_string_view__. Like __std_string__, __boost_string_view__ has a static member variable named `npos` to denote the result of failed searches, and to mean "the end".
-
-[caution Because a __boost_string_view__ does not own the data that it refers to, it introduces lifetime issues into code that uses it. The programmer must ensure that the data that a __string_view__ refers to exists as long as the __string_view__ does.]
-
-[note
-
-Boost.Utility also includes the class __string_ref__:
-
-- __string_ref__ is the initial implementation of Jeffrey Yaskin's [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html N3442:
-string_ref: a non-owning reference to a string].
-
-- __string_view__ is an updated implementation to reflect the Library Fundamentals TS [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html N4480: \[string.view\]].
-
-Please prefer __string_view__ / __basic_string_view__ over __string_ref__ / __basic_string_ref__:
-
-- The __basic_string_view__ class better matches __std_basic_string_view__.
-
-- __basic_string_view__ has WAY more constexpr support.
-
-- Code that uses __basic_string_ref__ should continue to work.
-
-- Not much code depends on __basic_string_ref__ anymore.
-
-
-]
-[endsect]
-
-[/===============]
-[section Examples]
-[/===============]
-
-Integrating __string_view__ into your code is fairly simple. Wherever you pass a `const __std_string__ &` or __std_string__ as a parameter, that's a candidate for passing a __boost_string_view__.
-
-```
-__std_string__ extract_part ( const __std_string__ &bar ) {
-    return bar.substr ( 2, 3 );
-}
-
-if ( extract_part ( "ABCDEFG" ).front() == 'C' ) { /* do something */ }
-```
-
-Let's figure out what happens in this contrived example.
-
-* First, a temporary string is created from the string literal `"ABCDEFG"`, and it is passed (by reference) to the routine `extract_part`.
-* Then a second string is created in the call `__std_string__::substr` and returned to `extract_part` (this copy may be elided by RVO).
-* Then `extract_part` returns that string back to the caller (again this copy may be elided).
-* The first temporary string is deallocated, and `front` is called on the second string, and then it is deallocated as well.
-
-Two __std_string__ s are created, and two copy operations. That is potentially four memory allocations and deallocations, and the associated copying of data.
-
-Now let's look at the same code with __string_view__:
-
-```
-__boost_string_view__ extract_part ( __boost_string_view__ bar ) {
-    return bar.substr ( 2, 3 );
-}
-
-if ( extract_part ( "ABCDEFG" ).front() == "C" ) { /* do something */ }
-```
-
-No memory allocations. No copying of character data. No changes to the code other than the types. There are two __string_view__ s created, and two __string_view__ s copied, but those are cheap operations.
-[endsect]
-
-[/=================]
-[section:reference Synopsis]
-[/=================]
-
-The header file [@../../../../boost/utility/string_view.hpp `<boost/utility/string_view.hpp>`] defines a template __boost_basic_string_view__, and four specializations __string_view__, __wstring_view__, __u16string_view__, __u32string_view__ - for `char` / `wchar_t` / `char16_t` / `char32_t`.
-
-`#include <boost/utility/string_view.hpp>`
-
-Construction and copying:
-
-```
-constexpr basic_string_view ();    // Constructs an empty string_view
-constexpr basic_string_view(const charT* str); // Constructs from a NULL-terminated string
-constexpr basic_string_view(const charT* str, size_type len); // Constructs from a pointer, length pair
-template<typename Allocator>
-basic_string_view(const __std_basic_string__<charT, traits, Allocator>& str); // Constructs from a std::string
-basic_string_view (const basic_string_view &rhs);
-basic_string_view& operator=(const basic_string_view &rhs);
-```
-
-__string_view__ does not define a move constructor nor a move-assignment operator because copying a __string_view__ is just a cheap as moving one.
-
-Basic container-like functions:
-
-```
-constexpr size_type size()     const ;
-constexpr size_type length()   const ;
-constexpr size_type max_size() const ;
-constexpr bool empty()         const ;
-
-// All iterators are const_iterators
-constexpr const_iterator  begin() const ;
-constexpr const_iterator cbegin() const ;
-constexpr const_iterator    end() const ;
-constexpr const_iterator   cend() const ;
-const_reverse_iterator         rbegin() const ;
-const_reverse_iterator        crbegin() const ;
-const_reverse_iterator           rend() const ;
-const_reverse_iterator          crend() const ;
-```
-
-Access to the individual elements (all of which are const):
-
-```
-constexpr const charT& operator[](size_type pos) const ;
-const charT& at(size_t pos) const ;
-constexpr const charT& front() const ;
-constexpr const charT& back()  const ;
-constexpr const charT* data()  const ;
-```
-
-Modifying the __string_view__ (but not the underlying data):
-
-```
-void clear();
-void remove_prefix(size_type n);
-void remove_suffix(size_type n);
-```
-
-Searching:
-
-```
-size_type find(basic_string_view s) const ;
-size_type find(charT c) const ;
-size_type rfind(basic_string_view s) const ;
-size_type rfind(charT c) const ;
-size_type find_first_of(charT c) const ;
-size_type find_last_of (charT c) const ;
-
-size_type find_first_of(basic_string_view s) const ;
-size_type find_last_of(basic_string_view s) const ;
-size_type find_first_not_of(basic_string_view s) const ;
-size_type find_first_not_of(charT c) const ;
-size_type find_last_not_of(basic_string_view s) const ;
-size_type find_last_not_of(charT c) const ;
-```
-
-String-like operations:
-
-```
-constexpr basic_string_view substr(size_type pos, size_type n=npos) const ; // Creates a new string_view
-bool starts_with(charT c) const ;
-bool starts_with(basic_string_view x) const ;
-bool ends_with(charT c) const ;
-bool ends_with(basic_string_view x) const ;
-```
-[endsect]
-
-
-[/===============]
-[section History]
-[/===============]
-
-[h5 boost 1.71]
-* Glen Fernandes updated the implementation of the stream insertion operator to
-write directly to the `basic_streambuf` and refactored that functionality into
-a common utility.
-
-[h5 boost 1.53]
-* Introduced
-
-[endsect]
-
-[/===============]
-[xinclude tmp/string_view_reference.xml]
-[/===============]
-
-[/===============]
-[section Acknowledgments]
-[/===============]
-
-Author: Clow, Marshall
-
-Copyright 2012 Marshall Clow
-
-[endsect]
-
-[endsect]

doc/tmp/.gitignore

@@ -1,2 +0,0 @@
-*.qbk
-*.xml

doc/utilities.qbk

@@ -1,32 +0,0 @@
-[/
-    Copyright (c) 2021 Alan de Freitas (alandefreitas@gmail.com)
-
-    Distributed under the Boost Software License, Version 1.0. (See accompanying
-    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    Official repository: https://github.com/boostorg/utility
-]
-
-[section:utilities Utilities]
-
-The entire contents of Boost.Utility are in `namespace boost`.
-
-[warning
-
-Direct use of the header [@../../../../boost/utility.hpp `<boost/utility.hpp>`] is discouraged and it will be deprecated.
-
-Please include the headers relative to individual components instead.
-
-]
-
-[include base_from_member.qbk]
-[include BOOST_BINARY.qbk]
-[include call_traits.qbk]
-[include compressed_pair.qbk]
-[include in_place_factory.qbk]
-[include operators.qbk]
-[include result_of.qbk]
-[include string_view.qbk]
-[include value_init.qbk]
-
-[endsect]

doc/value_init.qbk

@@ -1,584 +0,0 @@
-[/
- / Copyright (c) 2012 Marshall Clow
- / Copyright (c) 2021, Alan Freitas
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
-
-[/===============]
-[#sec:value_init]
-[section Value Init]
-
-[/===============]
-
-[section Introduction]
-
-Constructing and initializing objects in a generic way is difficult in
-C++. The problem is that there are several different rules that apply
-for initialization. Depending on the type, the value of a newly constructed
-object can be zero-initialized (logically 0), default-constructed (using
-the default constructor), or indeterminate. When writing generic code,
-this problem must be addressed. The template __value_initialized__ provides
-a solution with consistent syntax for value initialization of scalar,
-union and class types. Moreover, __value_initialized__ offers a workaround to various
-compiler issues regarding value-initialization.
-
-Furthermore, a `const` object __initialized_value__ is provided,
-to avoid repeating the type name when retrieving the value from a
-`__value_initialized__<T>` object.
-
-There are various ways to initialize a variable, in C++. The following
-declarations all ['may] have a local variable initialized to its default
-value:
-
-```
-T1 var1;
-T2 var2 = 0;
-T3 var3 = {};
-T4 var4 = T4();
-```
-
-Unfortunately, whether or not any of those declarations correctly
-initialize the variable very much depends on its type. The first
-declaration is valid for any __DefaultConstructible__ type by definition.
-
-However, it does not always do an initialization. It correctly initializes
-the variable when it's an instance of a class, and the author of the class
-has provided a proper default constructor. On the other hand, the value of
-`var1` is ['indeterminate] when its type is an arithmetic type, like `int`,
-`float`, or `char`.
-
-An arithmetic variable is of course initialized properly by the second declaration,
-`T2 var2 = 0`. But this initialization form will not usually work for a
-class type, unless the class was especially written to support being
-initialized that way.
-
-The third form, `T3 var3 = {}`, initializes an aggregate, typically a "C-style"
-`struct` or a "C-style" array. However, at the time this library was developed,
-the syntax did not allow for a class that has an explicitly declared constructor.
-
-The fourth form is the most generic form of them, as it can be used to initialize
-arithmetic types, class types, aggregates, pointers, and other types.
-The declaration,  `T4 var4 = T4()`, should be read as follows: First a temporary
-object is created, by `T4()`. This object is [link sec:valueinit value-initialized].
-Next the temporary object is copied to the named variable, `var4`. Afterwards,
-the temporary is destroyed. While the copying and the destruction are likely to
-be optimized away, C++ still requires the type `T4` to be __CopyConstructible__.
-So `T4` needs to be ['both] __DefaultConstructible__ ['and] __CopyConstructible__.
-
-A class may not be CopyConstructible, for example because it may have a
-private and undefined copy constructor, or because it may be derived from
-`boost::noncopyable`. Scott Meyers \[[link sec:references 2]\] explains why a
-class would be defined like that.
-
-There is another, less obvious disadvantage to the fourth form, `T4 var4 = T4()`:
-It suffers from various [link sec:compiler_issues compiler issues], causing
-a variable to be left uninitialized in some compiler specific cases.
-
-The template __value_initialized__ offers a generic way to initialize
-an object, like `T4 var4 = T4()`, but without requiring its type
-to be __CopyConstructible__. And it offers a workaround to those compiler issues
-regarding value-initialization as well. It allows getting an initialized
-variable of any type; it ['only] requires the type to be __DefaultConstructible__.
-A properly ['value-initialized] object of type `T` is constructed by the following
-declaration:
-
-```
-value_initialized<T> var;
-```
-
-The template __initialized__ offers both value-initialization and direct-initialization.
-It is especially useful as a data member type, allowing the very same object
-to be either direct-initialized or value-initialized.
-
-The `const` object __initialized_value__ allows value-initializing a variable as follows:
-
-```
-T var = initialized_value;
-```
-
-This form of initialization is semantically equivalent to `T4 var4 = T4()`,
-but robust against the aforementioned compiler issues.
-
-[endsect]
-
-[#sec:details]
-[section Details]
-
-The C++ standard \[[link sec:references 3]\] contains the definitions
-of `zero-initialization` and `default-initialization`. Informally, zero-initialization
-means that the object is given the initial value `0` converted to the type and
-default-initialization means that [@https://en.cppreference.com/w/cpp/named_req/PODType POD] \[[link sec:references 4]\] types are zero-initialized,
-while non-POD class types are initialized with their corresponding default constructors.
-
-A ['declaration] can contain an ['initializer], which specifies the
-object's initial value. The initializer can be just '()', which states that
-the object shall be value-initialized (but see below). However, if a ['declaration]
-has no ['initializer] and it is of a non-`const`, non-`static` POD type, the
-initial value is indeterminate: (see [sect]8.5, \[dcl.init\], for the
-accurate definitions).
-
-```
-int x; // no initializer. x value is indeterminate.
-__std_string__ s; // no initializer, s is default-constructed.
-
-int y = int();
-// y is initialized using copy-initialization
-// but the temporary uses an empty set of parentheses as the initializer,
-// so it is default-constructed.
-// A default constructed POD type is zero-initialized,
-// therefore, y == 0.
-
-void foo ( __std_string__ ) ;
-foo ( __std_string__() ) ;
-// the temporary string is default constructed
-// as indicated by the initializer ()
-```
-
-[#sec:valueinit]
-[h5 value-initialization]
-
-The first [@http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html Technical
-Corrigendum for the C++ Standard] (TC1), whose draft was released to the public in
-November 2001, introduced [@http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#178 Core
-Issue 178], among many other issues.
-
-That issue introduced the new concept of `value-initialization`, and also fixed the
-wording for zero-initialization. Informally, value-initialization is similar to
-default-initialization with the exception that in some cases non-static data members
-and base class sub-objects are also value-initialized.
-
-The difference is that an object that is value-initialized will not have, or at least
-is less likely to have, indeterminate values for data members and base class sub-objects;
-unlike the case of an object default constructed (see Core Issue 178 for a
-normative description).
-
-In order to specify value-initialization of an object we need to use the
-empty-set initializer: `()`.
-
-As before, a declaration with no initializer specifies default-initialization,
-and a declaration with a non-empty initializer specifies copy (`=xxx`) or
-direct (`xxx`) initialization.
-
-```
-template<class T> void eat(T);
-
-int x ; // indeterminate initial value.
-
-__std_string__ s; // default-initialized.
-
-eat ( int() ) ; // value-initialized
-
-eat ( __std_string__() ) ; // value-initialized
-```
-
-[#sec:valueinitsyn]
-[h5 value-initialization syntax]
-
-Value initialization is specified using `()`. However, the empty set of
-parentheses is not permitted by the syntax of initializers because it is
-parsed as the declaration of a function taking no arguments:
-
-```
-int x() ; // declares function int(*)()
-```
-
-Thus, the empty `()` must be put in some other initialization context.
-
-One alternative is to use copy-initialization syntax:
-
-```
-int x = int();
-```
-
-This works perfectly fine for POD types. But for non-POD class types,
-copy-initialization searches for a suitable constructor, which could be,
-for instance, the copy-constructor. It also searches for a suitable conversion
-sequence but this does not apply in this context.
-
-For an arbitrary unknown type, using this syntax may not have the
-value-initialization effect intended because we don't know if a copy
-from a default constructed object is exactly the same as a default
-constructed object, and the compiler is allowed, in
-some cases, but never required to, optimize the copy away.
-
-One possible generic solution is to use value-initialization of a non static
-data member:
-
-```
-template<class T>
-struct W
-{
-    // value-initialization of 'data' here.
-    W() : data() {}
-
-    T data;
-};
-
-W<int> w;
-// w.data is value-initialized for any type.
-```
-
-This is the solution as it was supplied by earlier versions of the
-`__value_initialized__<T>` template class. Unfortunately this approach
-suffered from various compiler issues.
-
-[#sec:compiler_issues]
-[h5 Compiler issues]
-
-Various compilers have not yet fully implemented value-initialization.
-So when an object should be ['value-initialized] according to the C++ Standard,
-it ['may] in practice still be left uninitialized, because of those
-compiler issues. It is hard to make a general statement on what those issues
-are like, because they depend on the compiler you are using, its version number,
-and the type of object you would like to have value-initialized.
-
-All compilers we have tested so far support value-initialization for arithmetic types properly.
-However, various compilers may leave some types of ['aggregates] uninitialized, when they
-should be value-initialized. Value-initialization of objects of a pointer-to-member type may also
-go wrong on various compilers.
-
-At the moment of writing, May 2010, the following reported issues regarding
-value-initialization are still there in current compiler releases:
-
-
-
-* [@https://connect.microsoft.com/VisualStudio/feedback/details/100744 Microsoft Visual Studio Feedback ID 100744, Value-initialization in new-expression]: Reported by Pavel Kuznetsov (MetaCommunications Engineering), 2005.
-* [@http://connect.microsoft.com/VisualStudio/feedback/details/484295 Microsoft Visual Studio Feedback ID 484295, VC++ does not value-initialize members of derived classes without user-declared constructor] Reported by Sylvester Hesp, 2009.
-* [@https://connect.microsoft.com/VisualStudio/feedback/details/499606 Microsoft Visual Studio Feedback ID 499606, Presence of copy constructor breaks member class initialization] Reported by Alex Vakulenko, 2009
-* [@http://qc.embarcadero.com/wc/qcmain.aspx?d=83751 Embarcadero/C++Builder Report 83751, Value-initialization: arrays should have each element value-initialized] Reported by Niels Dekker (LKEB), 2010.
-* [@http://qc.embarcadero.com/wc/qcmain.aspx?d=83851 Embarcadero/C++Builder Report 83851, Value-initialized temporary triggers internal backend error C1798] Reported by Niels Dekker, 2010.
-* [@http://qc.embarcadero.com/wc/qcmain.aspx?d=84279 Embarcadero/C++Builder Report 84279, Internal compiler error (F1004), value-initializing member function pointer by "new T()"] Reported by Niels Dekker, 2010
-* Sun CR 6947016, Sun 5.10 may fail to value-initialize an object of a non-POD aggregate. Reported to Steve Clamage by Niels Dekker, 2010.
-* IBM's XL V10.1 and V11.1 may fail to value-initialize a temporary of a non-POD aggregate. Reported to Michael Wong by Niels Dekker, 2010.
-* Intel support issue 589832, Attempt to value-initialize pointer-to-member triggers internal error on Intel 11.1. Reported by John Maddock, 2010.
-
-Note that all known GCC issues regarding value-initialization are fixed with GCC version 4.4, including
-[@http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30111 GCC Bug 30111]. Clang also has completely implemented
-value-initialization, as far as we know, now that [@http://llvm.org/bugs/show_bug.cgi?id=7139 Clang Bug 7139]
-is fixed.
-
-New versions of __value_initialized__ (Boost release version 1.35 or higher) offer a workaround to these
-issues: __value_initialized__ may now clear its internal data, prior to constructing the object that it
-contains. It will do so for those compilers that need to have such a workaround, based on the
-[@boost:/libs/config/doc/html/boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_defects
-compiler defect macro] `BOOST_NO_COMPLETE_VALUE_INITIALIZATION`.
-
-[endsect]
-
-[#sec:types]
-[section Types and objects]
-
-[#sec:val_init]
-[section `template class value_initialized<T>`]
-
-```
-namespace boost {
-
-template<class T>
-class __value_initialized__
-{
-
-  public :
-
-    __value_initialized__() : x() {}
-
-    operator T const &() const { return x ; }
-
-    operator T&() { return x ; }
-
-    T const &data() const { return x ; }
-
-    T& data() { return x ; }
-
-    void swap( __value_initialized__& );
-
-  private :
-
-    [unspecified] x ;
-
-} ;
-
-template<class T>
-
-T const& get ( __value_initialized__<T> const& x )
-{
-  return x.data();
-}
-
-template<class T>
-T& get ( __value_initialized__<T>& x )
-{
-  return x.data();
-}
-
-template<class T>
-void swap ( __value_initialized__<T>& lhs, __value_initialized__<T>& rhs )
-{
-  lhs.swap(rhs);
-}
-
-} // namespace boost
-```
-
-An object of this template class is a `T`-wrapper convertible to `'T&'` whose
-wrapped object (data member of type `T`) is [link sec:valueinit value-initialized] upon default-initialization
-of this wrapper class:
-
-```
-int zero = 0;
-__value_initialized__<int> x;
-assert( x == zero ) ;
-
-__std_string__ def;
-__value_initialized__< __std_string__ > y;
-assert( y == def ) ;
-```
-
-The purpose of this wrapper is to provide a consistent syntax for value initialization
-of scalar, union and class types (POD and non-POD) since the correct syntax for value
-initialization varies (see [link sec:valueinitsyn value-initialization syntax]).
-
-The wrapped object can be accessed either through the conversion operator
-`T&`, the member function `data()`, or the non-member function `get()`:
-
-```
-void watch(int);
-
-__value_initialized__<int> x;
-
-watch(x) ; // operator T& used.
-watch(x.data());
-watch( get(x) ) // function get() used
-```
-
-Both `const` and non-`const` objects can be wrapped. Mutable objects can be
-modified directly from within the wrapper but constant objects cannot:
-
-When `T` is a __Swappable__ type, `__value_initialized__<T>`
-is swappable as well, by calling its `swap` member function
-as well as by calling `boost::swap`.
-
-```
-__value_initialized__<int> x;
-static_cast<int&>(x) = 1 ; // OK
-get(x) = 1 ; // OK
-
-__value_initialized__<int const> y ;
-static_cast<int&>(y) = 1 ; // ERROR: cannot cast to int&
-static_cast<int const&>(y) = 1 ; // ERROR: cannot modify a const value
-get(y) = 1 ; // ERROR: cannot modify a const value
-```
-
-[warning
-
-The __value_initialized__ implementation of Boost version 1.40.0 and older
-allowed ['non-const] access to the wrapped object, from a constant wrapper,
-both by its conversion operator and its `data()` member function.
-
-For example:
-
-```
-__value_initialized__<int> const x_c;
-int& xr = x_c ; // OK, conversion to int& available even though x_c is itself const.
-xr = 2 ;
-```
-
-The reason for this obscure behavior was that some compilers did not accept the following valid code:
-
-```
-struct X
-{
-  operator int&() ;
-    operator int const&() const ;
-  };
-  X x ;
-  (x == 1) ; // ERROR HERE!
-```
-
-The current version of __value_initialized__ no longer has this obscure behavior.
-As compilers nowadays widely support overloading the conversion operator by having a `const`
-and a `non-const` version, we have decided to fix the issue accordingly. So the current version
-supports the idea of logical constness.
-
-]
-
-[h5 Recommended practice: The non-member get() idiom]
-
-The obscure behavior of being able to modify a non-`const`
-wrapped object from within a constant wrapper (as was supported by previous
-versions of __value_initialized__) can be avoided if access to the wrapped object
-is always performed with the `get()` idiom:
-
-```
-value_initialized<int> x;
-get(x) = 1; // OK
-value_initialized<int const> cx;
-get(x) = 1; // ERROR: Cannot modify a const object
-
-value_initialized<int> const x_c;
-get(x_c) = 1; // ERROR: Cannot modify a const object
-
-value_initialized<int const> const cx_c;
-get(cx_c) = 1; // ERROR: Cannot modify a const object
-```
-
-[endsect]
-
-[#sec:initialized]
-[section `template class initialized<T>`]
-
-
-```
-namespace boost {
-
-template<class T>
-class __initialized__
-{
-
-  public :
-
-    __initialized__() : x() {}
-
-    explicit __initialized__(T const & arg) : x(arg) {}
-
-    operator T const &() const;
-
-    operator T&();
-
-    T const &data() const;
-
-    T& data();
-
-    void swap( __initialized__& );
-
-  private :
-
-    [unspecified] x ;
-
-};
-
-template<class T>
-T const& get ( __initialized__<T> const& x );
-
-template<class T>
-T& get ( __initialized__<T>& x );
-
-template<class T>
-void swap ( __initialized__<T>& lhs, __initialized__<T>& rhs );
-
-} // namespace boost
-```
-
-The template class `boost::__initialized__<T>` supports both value-initialization
-and direct-initialization, so its interface is a superset of the interface
-of `__value_initialized__<T>`: Its default-constructor value-initializes the
-wrapped object just like the default-constructor of `__value_initialized__<T>`,
-but `boost::__initialized__<T>` also offers an extra `explicit`
-constructor, which direct-initializes the wrapped object by the specified value.
-
-`__initialized__<T>` is especially useful when the wrapped
-object must be either value-initialized or direct-initialized, depending on
-runtime conditions. For example, `__initialized__<T>` could
-hold the value of a data member that may be value-initialized by some
-constructors, and direct-initialized by others.
-
-On the other hand, if it is known beforehand that the
-object must ['always] be value-initialized, `__value_initialized__<T>`
-may be preferable. And if the object must always be
-direct-initialized, none of the two wrappers really needs to be used.
-
-[endsect]
-
-[#sec:initialized_value]
-[section `initialized_value`]
-
-```
-namespace boost {
-class __initialized_value_t__
-{
-  public :
-    template <class T> operator T() const ;
-};
-
-__initialized_value_t__ const initialized_value = {} ;
-
-} // namespace boost
-```
-
-__initialized_value__ provides a convenient way to get
-an initialized value: its conversion operator provides an appropriate
-['value-initialized] object for any __CopyConstructible__ type.
-
-Suppose you need to have an initialized variable of type `T`.
-You could do it as follows:
-
-```
-T var = T();
-```
-
-But as mentioned before, this form suffers from various compiler issues.
-The template __value_initialized__ offers a workaround:
-
-```
-T var = get( __value_initialized__<T>() );
-```
-
-Unfortunately both forms repeat the type name, which
-is rather short now (`T`), but could of course be
-more like `Namespace::Template<Arg>::Type`.
-
-Instead, one could use __initialized_value__ as follows:
-
-```
-T var = __initialized_value__;
-```
-
-[endsect]
-[endsect]
-
-[#sec:references]
-[section References]
-
-# Bjarne Stroustrup, Gabriel Dos Reis, and J. Stephen Adamczyk wrote various papers,
-proposing to extend the support for brace-enclosed ['initializer lists]
-in C++. This [@https://en.cppreference.com/w/cpp/language/list_initialization feature] has
-now been available since C++11. This would allow a variable `var` of any __DefaultConstructible__ type
-`T` to be ['value-initialized] by doing `T var = {}`. The papers are listed at Bjarne's web page,
-[@http://www.research.att.com/~bs/WG21.html My C++ Standards committee papers].
-
-# Scott Meyers, Effective C++, Third Edition, item 6, ['Explicitly disallow the use of
-compiler-generated functions you do not want], [@http://www.aristeia.com/books.html Scott Meyers: Books and CDs]
-
-# The C++ Standard, Second edition (2003), ISO/IEC 14882:2003
-
-# POD stands for [@https://en.cppreference.com/w/cpp/named_req/PODType "Plain Old Data"]
-
-[endsect]
-
-[/===============]
-[xinclude tmp/value_init_reference.xml]
-[/===============]
-
-[#sec:acknowledgements]
-[section Acknowledgements]
-
-__value_initialized__ was developed by Fernando Cacciola, with help and suggestions
-from David Abrahams and Darin Adler.
-
-Special thanks to Bjorn Karlsson who carefully edited and completed this documentation.
-
-__value_initialized__ was reimplemented by Fernando Cacciola and Niels Dekker
-for Boost release version 1.35 (2008), offering a workaround to various compiler issues.
-
-`boost::__initialized__` was very much inspired by feedback from Edward Diener and Jeffrey Hellrung.
-
-__initialized_value__ was written by Niels Dekker, and added to Boost release version 1.36 (2008).
-
-Developed by [@mailto:fernando_cacciola@hotmail.com Fernando Cacciola]. The latest version of
-this file can be found at [@http://www.boost.org www.boost.org].
-
-[endsect]
-
-[endsect]

enable_if.html

@@ -1,19 +1,464 @@
-<html>
-<head>
-    <title>Boost.EnableIf</title>
-    <meta http-equiv="refresh" content="0; URL=../core/doc/html/core/enable_if.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="../core/doc/html/core/enable_if.html">../core/doc/html/core/enable_if.html</a>
-<hr>
-<tt>
-    Boost.EnableIf<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
-</body>
-</html>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
+            "http://www.w3.org/TR/REC-html40/loose.dtd">
+<HTML>
+<HEAD><TITLE>enable_if</TITLE>
+
+<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<META name="GENERATOR" content="Microsoft FrontPage 5.0">
+</HEAD>
+<BODY >
+<!--HEVEA command line is: hevea -nosymb -noiso -pedantic -v enable_if_docs_for_boost.tex -->
+<!--HTMLHEAD-->
+<!--ENDHTML-->
+<!--PREFIX <ARG ></ARG>-->
+<!--CUT DEF section 1 -->
+<BR>
+<BR>
+
+
+<h1>
+<img border="0" src="../../boost.png" align="center" width="277" height="86">enable_if</h1>
+<BR>
+<BR>
+Copyright 2003 Jaakko J&auml;rvi, Jeremiah Willcock, Andrew Lumsdaine.<BR>
+Copyright 2011 Matt Calabrese.<BR>
+<BR>
+<!--TOC section Introduction-->
+
+<H2><A NAME="htoc1">1</A>&nbsp;&nbsp;Introduction</H2><!--SEC END -->
+
+<A NAME="introduction"></A>
+The <TT>enable_if</TT> family of templates is a set of tools to allow a function template or a class template specialization 
+to include or exclude itself from a set of matching functions or specializations
+based on properties of its template arguments. 
+For example, one can define function templates that
+are only enabled for, and thus only match, an arbitrary set of types
+defined by a traits class. The <TT>enable_if</TT> templates can also be
+applied to enable class template specializations. Applications of
+<TT>enable_if</TT> are discussed in length
+in&nbsp;[<A HREF="#jarvi:03:cuj_arbitrary_overloading"><CITE>1</CITE></A>] and&nbsp;[<A HREF="#jarvi:03:c++typeclasses"><CITE>2</CITE></A>].<BR>
+<BR>
+<!--TOC subsection Synopsis-->
+
+<H3><A NAME="htoc2">1.1</A>&nbsp;&nbsp;Synopsis</H3><!--SEC END -->
+
+<A NAME="sec:synopsis"></A>
+<PRE>namespace boost {
+  template &lt;class Cond, class T = void&gt; struct enable_if;
+  template &lt;class Cond, class T = void&gt; struct disable_if;
+  template &lt;class Cond, class T&gt; struct lazy_enable_if;
+  template &lt;class Cond, class T&gt; struct lazy_disable_if;
+
+  template &lt;bool B, class T = void&gt; struct enable_if_c;
+  template &lt;bool B, class T = void&gt; struct disable_if_c;
+  template &lt;bool B, class T&gt; struct lazy_enable_if_c;
+  template &lt;bool B, class T&gt; struct lazy_disable_if_c;
+}
+</PRE>
+<!--TOC subsection Background-->
+
+<H3><A NAME="htoc3">1.2</A>&nbsp;&nbsp;Background</H3><!--SEC END -->
+
+<A NAME="sec:background"></A>
+Sensible operation of template function overloading in C++ relies
+on the <EM>SFINAE</EM> (substitution-failure-is-not-an-error)
+principle&nbsp;[<A HREF="#vandevoorde2002:templates"><CITE>3</CITE></A>]: if an invalid argument
+or return type is formed during the instantiation of a function
+template, the instantiation is removed from the overload resolution
+set instead of causing a compilation error. The following example, 
+taken from&nbsp;[<A HREF="#jarvi:03:cuj_arbitrary_overloading"><CITE>1</CITE></A>],
+demonstrates why this is important:
+<PRE>int negate(int i) { return -i; }
+
+template &lt;class F&gt;
+typename F::result_type negate(const F&amp; f) { return -f(); }
+
+</PRE>
+Suppose the compiler encounters the call <TT>negate(1)</TT>. The first
+definition is obviously a better match, but the compiler must
+nevertheless consider (and instantiate the prototypes) of both
+definitions to find this out. Instantiating the latter definition with
+<TT>F</TT> as <TT>int</TT> would result in:
+<PRE>int::result_type negate(const int&amp;);
+
+</PRE>
+where the return type is invalid. If this were an error, adding an unrelated function template 
+(that was never called) could break otherwise valid code.
+Due to the SFINAE principle the above example is not, however, erroneous. 
+The latter definition of <TT>negate</TT> is simply removed from the overload resolution set.<BR>
+<BR>
+The <TT>enable_if</TT> templates are tools for controlled creation of the SFINAE
+conditions.<BR>
+<BR>
+<!--TOC section The <TT>enable_if</TT> templates-->
+
+<H2><A NAME="htoc4">2</A>&nbsp;&nbsp;The <TT>enable_if</TT> templates</H2><!--SEC END -->
+
+<A NAME="enable_if"></A>
+The names of the <TT>enable_if</TT> templates have three parts: an optional <TT>lazy_</TT> tag, 
+either <TT>enable_if</TT> or <TT>disable_if</TT>, and an optional <TT>_c</TT> tag.
+All eight combinations of these parts are supported.
+The meaning of the <TT>lazy_</TT> tag is described in Section&nbsp;<A HREF="#sec:enable_if_lazy">3.3</A>.
+The second part of the name indicates whether a true condition argument should 
+enable or disable the current overload.
+The third part of the name indicates whether the condition argument is a <TT>bool</TT> value 
+(<TT>_c</TT> suffix), or a type containing a static <TT>bool</TT> constant named <TT>value</TT> (no suffix).
+The latter version interoperates with Boost.MPL. <BR>
+<BR>
+The definitions of <TT>enable_if_c</TT> and <TT>enable_if</TT> are as follows (we use <TT>enable_if</TT> templates 
+unqualified but they are in the <TT>boost</TT> namespace).
+<PRE>template &lt;bool B, class T = void&gt;
+struct enable_if_c {
+  typedef T type;
+};
+
+template &lt;class T&gt;
+struct enable_if_c&lt;false, T&gt; {};
+
+template &lt;class Cond, class T = void&gt;
+struct enable_if : public enable_if_c&lt;Cond::value, T&gt; {};
+
+</PRE>
+An instantiation of the <TT>enable_if_c</TT> template with the parameter
+<TT>B</TT> as <TT>true</TT> contains a member type <TT>type</TT>, defined
+to be <TT>T</TT>. If <TT>B</TT> is
+<TT>false</TT>, no such member is defined. Thus 
+<TT>enable_if_c&lt;B, T&gt;::type</TT> is either a valid or an invalid type
+expression, depending on the value of <TT>B</TT>.
+When valid, <TT>enable_if_c&lt;B, T&gt;::type</TT> equals <TT>T</TT>.
+The <TT>enable_if_c</TT> template can thus be used for controlling when functions are considered for
+overload resolution and when they are not. 
+For example, the following function is defined for all arithmetic types (according to the
+classification of the <A HREF="../type_traits/index.html">Boost type_traits library</A>):
+<PRE>template &lt;class T&gt;
+typename enable_if_c&lt;boost::is_arithmetic&lt;T&gt;::value, T&gt;::type 
+foo(T t) { return t; }
+
+</PRE>
+The <TT>disable_if_c</TT> template is provided as well, and has the
+same functionality as <TT>enable_if_c</TT> except for the negated condition. The following
+function is enabled for all non-arithmetic types.
+<PRE>template &lt;class T&gt;
+typename disable_if_c&lt;boost::is_arithmetic&lt;T&gt;::value, T&gt;::type 
+bar(T t) { return t; }
+
+</PRE>
+For easier syntax in some cases and interoperation with Boost.MPL we provide versions of
+the <TT>enable_if</TT> templates taking any type with a <TT>bool</TT> member constant named 
+<TT>value</TT> as the condition argument.
+The MPL <TT>bool_</TT>, <TT>and_</TT>, <TT>or_</TT>, and <TT>not_</TT> templates are likely to be 
+useful for creating such types. Also, the traits classes in the Boost.Type_traits library 
+follow this convention. 
+For example, the above example function <TT>foo</TT> can be alternatively written as:
+<PRE>template &lt;class T&gt;
+typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+foo(T t) { return t; }
+
+</PRE>
+
+<!--TOC section Using <TT>enable_if</TT>-->
+
+<H2><A NAME="htoc5">3</A>&nbsp;&nbsp;Using <TT>enable_if</TT></H2><!--SEC END -->
+
+<A NAME="sec:using_enable_if"></A>
+The <TT>enable_if</TT> templates are defined in
+<TT>boost/utility/enable_if.hpp</TT>, which is included by <TT>boost/utility.hpp</TT>.<BR>
+<BR>
+With respect to function templates, <TT>enable_if</TT> can be used in multiple different ways:
+
+<UL>
+<LI>As the return type of an instantiatied function
+<LI>As an extra parameter of an instantiated function
+<LI>As an extra template parameter (useful only in a compiler that supports C++0x default
+arguments for function template parameters, see <A href="#sec:enable_if_0x">Enabling function
+templates in C++0x</a> for details)
+</UL>
+
+In the previous section, the return type form of <TT>enable_if</TT> was shown. As an example
+of using the form of <TT>enable_if</TT> that works via an extra function parameter, the
+<TT>foo</TT> function in the previous section could also be written
+as:
+<PRE>template &lt;class T&gt;
+T foo(T t, typename enable_if&lt;boost::is_arithmetic&lt;T&gt; &gt;::type* dummy = 0); 
+
+</PRE>Hence, an extra parameter of type <TT>void*</TT> is added, but it is given 
+a default value to keep the parameter hidden from client code.
+Note that the second template argument was not given to <TT>enable_if</TT>, as the default 
+<TT>void</TT> gives the desired behavior.<BR>
+<BR>
+Which way to write the enabler is largely a matter of taste, but for certain functions, only a
+subset of the options is possible:
+<UL><LI>
+Many operators have a fixed number of arguments, thus <TT>enable_if</TT> must be used either in the
+return type or in an extra template parameter.
+<LI>Functions that have a variadic parameter list must use either the return type form or an extra
+template parameter.
+<LI>Constructors do not have a return type so you must use either an extra function parameter or an
+extra template parameter.
+<LI>Constructors that have a variadic parameter list must an extra template parameter.
+<LI>Conversion operators can only be written with an extra template parameter.
+</UL>
+<!--TOC subsection Enabling function templates in C++0x-->
+
+<A NAME="sec:enable_if_0x"></A>
+<H3><A NAME="htoc7">3.1</A>&nbsp;&nbsp;Enabling function templates in C++0x</H3><!--SEC END -->
+
+In a compiler which supports C++0x default arguments for function template parameters, you can
+enable and disable function templates by adding an additional template parameter. This approach
+works in all situations where you would use either the return type form of <TT>enable_if</TT> or
+the function parameter form, including operators, constructors, variadic function templates, and
+even overloaded conversion operations.
+
+As an example:
+
+<PRE>#include &lt;boost/type_traits/is_arithmetic.hpp&gt;
+#include &lt;boost/type_traits/is_pointer.hpp&gt;
+#include &lt;boost/utility/enable_if.hpp&gt;
+
+class test
+{
+public:
+  // A constructor that works for any argument list of size 10
+  template&lt; class... T
+          , typename boost::enable_if_c&lt; sizeof...( T ) == 10, int &gt;::type = 0
+          &gt;
+  test( T&amp;&amp;... );
+
+  // A conversion operation that can convert to any arithmetic type
+  template&lt; class T
+          , typename boost::enable_if&lt; boost::is_arithmetic&lt; T &gt;, int &gt;::type = 0
+          &gt;
+  operator T() const;
+
+  // A conversion operation that can convert to any pointer type
+  template&lt; class T
+          , typename boost::enable_if&lt; boost::is_pointer&lt; T &gt;, int &gt;::type = 0
+          &gt;
+  operator T() const;
+};
+
+int main()
+{
+  // Works
+  test test_( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 );
+
+  // Fails as expected
+  test fail_construction( 1, 2, 3, 4, 5 );
+
+  // Works by calling the conversion operator enabled for arithmetic types
+  int arithmetic_object = test_;
+
+  // Works by calling the conversion operator enabled for pointer types
+  int* pointer_object = test_;
+
+  // Fails as expected
+  struct {} fail_conversion = test_;
+}
+
+</PRE>
+
+<!--TOC subsection Enabling template class specializations-->
+
+<H3><A NAME="htoc7">3.2</A>&nbsp;&nbsp;Enabling template class specializations</H3><!--SEC END -->
+
+<A NAME="sec:enable_if_classes"></A>
+Class template specializations can be enabled or disabled with <TT>enable_if</TT>.
+One extra template parameter needs to be added for the enabler expressions.
+This parameter has the default value <TT>void</TT>.
+For example:
+<PRE>template &lt;class T, class Enable = void&gt; 
+class A { ... };
+
+template &lt;class T&gt;
+class A&lt;T, typename enable_if&lt;is_integral&lt;T&gt; &gt;::type&gt; { ... };
+
+template &lt;class T&gt;
+class A&lt;T, typename enable_if&lt;is_float&lt;T&gt; &gt;::type&gt; { ... };
+
+</PRE>Instantiating <TT>A</TT> with any integral type matches the first specialization,
+whereas any floating point type matches the second one. All other types
+match the primary template.
+The condition can be any compile-time boolean expression that depends on the 
+template arguments of the class.
+Note that again, the second argument to <TT>enable_if</TT> is not needed; the default (<TT>void</TT>) 
+is the correct value.<BR>
+<BR>
+<!--TOC subsection Overlapping enabler conditions-->
+
+<H3><A NAME="htoc8">3.3</A>&nbsp;&nbsp;Overlapping enabler conditions</H3><!--SEC END -->
+
+<A NAME="sec:overlapping_conditions"></A>
+Once the compiler has examined the enabling conditions and included the
+function into the overload resolution set, normal C++ overload resolution 
+rules are used to select the best matching function.
+In particular, there is no ordering between enabling conditions.
+Function templates with enabling conditions that are not mutually exclusive can 
+lead to ambiguities. For example:
+<PRE>template &lt;class T&gt;
+typename enable_if&lt;boost::is_integral&lt;T&gt;, void&gt;::type 
+foo(T t) {}
+
+template &lt;class T&gt;
+typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, void&gt;::type 
+foo(T t) {}
+
+</PRE>
+All integral types are also arithmetic. Therefore, say, for the call <TT>foo(1)</TT>,
+both conditions are true and both functions are thus in the overload resolution set.
+They are both equally good matches and thus ambiguous.
+Of course, more than one enabling condition can be simultaneously true as long as 
+other arguments disambiguate the functions.<BR>
+<BR>
+The above discussion applies to using <TT>enable_if</TT> in class template
+partial specializations as well.<BR>
+<BR>
+<!--TOC subsection Lazy <TT>enable_if</TT>-->
+
+<H3><A NAME="htoc9">3.4</A>&nbsp;&nbsp;Lazy <TT>enable_if</TT></H3><!--SEC END -->
+
+<A NAME="sec:enable_if_lazy"></A>
+In some cases it is necessary to avoid instantiating part of a
+function signature unless an enabling condition is true. For example:
+<PRE>template &lt;class T, class U&gt; class mult_traits;
+
+template &lt;class T, class U&gt;
+typename enable_if&lt;is_multipliable&lt;T, U&gt;, typename mult_traits&lt;T, U&gt;::type&gt;::type
+operator*(const T&amp; t, const U&amp; u) { ... }
+
+</PRE>Assume the class template <TT>mult_traits</TT> is a traits class defining 
+the resulting type of a multiplication operator. The <TT>is_multipliable</TT> traits
+class specifies for which types to enable the operator. Whenever
+<TT>is_multipliable&lt;A, B&gt;::value</TT> is <TT>true</TT> for some types <TT>A</TT> and <TT>B</TT>,
+then <TT>mult_traits&lt;A, B&gt;::type</TT> is defined.<BR>
+<BR>
+Now, trying to invoke (some other overload) of <TT>operator*</TT> with, say, operand types <TT>C</TT> and <TT>D</TT> 
+for which <TT>is_multipliable&lt;C, D&gt;::value</TT> is <TT>false</TT> 
+and <TT>mult_traits&lt;C, D&gt;::type</TT> is not defined is an error on some compilers. 
+The SFINAE principle is not applied because
+the invalid type occurs as an argument to another template. The <TT>lazy_enable_if</TT> 
+and <TT>lazy_disable_if</TT> templates (and their <TT>_c</TT> versions) can be used in such
+situations:
+<PRE>template&lt;class T, class U&gt;
+typename lazy_enable_if&lt;is_multipliable&lt;T, U&gt;, mult_traits&lt;T, U&gt; &gt;::type
+operator*(const T&amp; t, const U&amp; u) { ... }
+
+</PRE>The second argument of <TT>lazy_enable_if</TT> must be a class type
+that defines a nested type named <TT>type</TT> whenever the first
+parameter (the condition) is true.<BR>
+<BR>
+<!--TOC paragraph Note-->
+
+<H5>Note</H5><!--SEC END -->
+
+Referring to one member type or static constant in a traits class
+causes all of the members (type and static constant) of that
+specialization to be instantiated. Therefore, if your traits classes
+can sometimes contain invalid types, you should use two distinct
+templates for describing the conditions and the type mappings. In the
+above example, <TT>is_multipliable&lt;T, U&gt;::value</TT> defines when
+<TT>mult_traits&lt;T, U&gt;::type</TT> is valid.<BR>
+<BR>
+<!--TOC subsection Compiler workarounds-->
+
+<H3><A NAME="htoc10">3.5</A>&nbsp;&nbsp;Compiler workarounds</H3><!--SEC END -->
+
+<A NAME="sec:workarounds"></A>
+Some compilers flag functions as ambiguous if the only distinguishing factor is a different 
+condition in an enabler (even though the functions could never be ambiguous). For example,
+some compilers (e.g. GCC 3.2) diagnose the following two functions as ambiguous:
+<PRE>template &lt;class T&gt;
+typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+foo(T t);
+
+template &lt;class T&gt;
+typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+foo(T t);
+
+</PRE>Two workarounds can be applied:
+<UL><LI>
+Use an extra dummy parameter which disambiguates the functions. Use a default value for
+it to hide the parameter from the caller. For example:
+<PRE>template &lt;int&gt; struct dummy { dummy(int) {} };
+
+template &lt;class T&gt;
+typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+foo(T t, dummy&lt;0&gt; = 0);
+
+template &lt;class T&gt;
+typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+foo(T t, dummy&lt;1&gt; = 0);
+</PRE><BR>
+<BR>
+<LI>Define the functions in different namespaces and bring them into a common
+namespace with <TT>using</TT> declarations:
+<PRE>namespace A {
+  template &lt;class T&gt;
+  typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+  foo(T t);
+}
+
+namespace B {
+  template &lt;class T&gt;
+  typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
+  foo(T t);
+}
+
+using A::foo;
+using B::foo;
+
+</PRE>
+Note that the second workaround above cannot be used for member
+templates. On the other hand, operators do not accept extra arguments,
+which makes the first workaround unusable. As the net effect,
+neither of the workarounds are of assistance for templated operators that
+need to be defined as member functions (assignment and
+subscript operators).
+</UL>
+<!--TOC section Acknowledgements-->
+
+<H2><A NAME="htoc10">4</A>&nbsp;&nbsp;Acknowledgements</H2><!--SEC END -->
+
+We are grateful to Howard Hinnant, Jason Shirk, Paul Mensonides, and Richard
+Smith whose findings have influenced the library.<BR>
+<BR>
+<!--TOC section References-->
+
+<H2>References</H2><!--SEC END -->
+<DL COMPACT=compact><DT><A NAME="jarvi:03:cuj_arbitrary_overloading"><FONT COLOR=purple>[1]</FONT></A><DD>
+Jaakko J&auml;rvi, Jeremiah Willcock, Howard Hinnant, and Andrew Lumsdaine.
+Function overloading based on arbitrary properties of types.
+<EM>C/C++ Users Journal</EM>, 21(6):25--32, June 2003.<BR>
+<BR>
+<DT><A NAME="jarvi:03:c++typeclasses"><FONT COLOR=purple>[2]</FONT></A><DD>
+Jaakko J&auml;rvi, Jeremiah Willcock, and Andrew Lumsdaine.
+Concept-controlled polymorphism.
+In Frank Pfennig and Yannis Smaragdakis, editors, <EM>Generative
+ Programming and Component Engineering</EM>, volume 2830 of <EM>LNCS</EM>, pages
+ 228--244. Springer Verlag, September 2003.<BR>
+<BR>
+<DT><A NAME="vandevoorde2002:templates"><FONT COLOR=purple>[3]</FONT></A><DD>
+David Vandevoorde and Nicolai&nbsp;M. Josuttis.
+<EM>C++ Templates: The Complete Guide</EM>.
+Addison-Wesley, 2002.</DL>
+
+<hr/>
+   <p>Copyright Jaakko J&auml;rvi<sup>*</sup>, Jeremiah Willcock<sup>*</sup>, Andrew Lumsdaine<sup>*</sup>, Matt Calabrese<BR>
+<EM>{jajarvi|jewillco|lums}@osl.iu.edu, rivorus@gmail.com</EM><BR>
+<sup>*</sup>Indiana University<BR>
+Open Systems Lab<br/>
+Use, modification and distribution are subject to the
+Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt
+or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
+   http://www.boost.org/LICENSE_1_0.txt
+</a>).
+</p>
+<!--HTMLFOOT-->
+<!--ENDHTML-->
+<!--FOOTER-->
+<HR SIZE=2>
+<BLOCKQUOTE><EM>This document was translated from L<sup>A</sup>T<sub>E</sub>X by
+</EM><A HREF="http://pauillac.inria.fr/~maranget/hevea/index.html"><EM>H<FONT SIZE=2><sup>E</sup></FONT>V<FONT SIZE=2><sup>E</sup></FONT>A</EM></A><EM>.
+</EM></BLOCKQUOTE>
+</BODY>
+</HTML>

enable_if/test/Jamfile.v2

@@ -0,0 +1,23 @@
+# Copyright David Abrahams 2003.
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or copy at 
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# For more information, see http://www.boost.org/
+
+project
+    : requirements <library>/boost/test//boost_test_exec_monitor
+    ;
+
+test-suite utility/enable_if
+        :
+        [ run constructors.cpp ]
+        [ run dummy_arg_disambiguation.cpp ]
+        [ run lazy.cpp ]
+        [ run lazy_test.cpp ]
+        [ run member_templates.cpp ]
+        [ run namespace_disambiguation.cpp ]
+        [ run no_disambiguation.cpp ]
+        [ run partial_specializations.cpp ]
+    ;
+

enable_if/test/constructors.cpp

@@ -0,0 +1,62 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits.hpp>
+
+using boost::enable_if;
+using boost::disable_if;
+using boost::is_arithmetic;
+
+struct container {
+  bool my_value;
+
+  template <class T>
+  container(const T&, const typename enable_if<is_arithmetic<T>, T>::type * = 0):
+  my_value(true) {}
+
+  template <class T>
+  container(const T&, const typename disable_if<is_arithmetic<T>, T>::type * = 0):
+  my_value(false) {}
+};
+
+// example from Howard Hinnant (tests enable_if template members of a templated class)
+template <class charT>
+struct xstring
+{
+  template <class It>
+  xstring(It begin, It end, typename 
+          disable_if<is_arithmetic<It> >::type* = 0)
+    : data(end-begin) {}
+  
+  int data;
+};
+
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(container(1).my_value);
+  BOOST_CHECK(container(1.0).my_value);
+
+  BOOST_CHECK(!container("1").my_value);  
+  BOOST_CHECK(!container(static_cast<void*>(0)).my_value);  
+
+  char sa[] = "123456";
+  BOOST_CHECK(xstring<char>(sa, sa+6).data == 6);
+
+
+  return 0;
+}
+

enable_if/test/dummy_arg_disambiguation.cpp

@@ -0,0 +1,46 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::enable_if;
+using boost::disable_if;
+using boost::is_arithmetic;
+
+template <int N> struct dummy {
+  dummy(int) {};
+};
+
+template<class T>
+typename enable_if<is_arithmetic<T>, bool>::type
+arithmetic_object(T t, dummy<0> = 0) { return true; }
+
+template<class T>
+typename disable_if<is_arithmetic<T>, bool>::type
+arithmetic_object(T t, dummy<1> = 0) { return false; }
+
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(arithmetic_object(1));
+  BOOST_CHECK(arithmetic_object(1.0));
+
+  BOOST_CHECK(!arithmetic_object("1"));  
+  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
+
+  return 0;
+}
+

enable_if/test/lazy.cpp

@@ -0,0 +1,82 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+using boost::enable_if_c;
+using boost::lazy_enable_if_c;
+
+// This class provides a reduced example of a traits class for
+// computing the result of multiplying two types.  The member typedef
+// 'type' in this traits class defines the return type of this
+// operator.  The return type member is invalid unless both arguments
+// for mult_traits are values that mult_traits expects (ints in this
+// case).  This kind of situation may arise if a traits class only
+// makes sense for some set of types, not all C++ types.
+
+template <class T> struct is_int {
+  BOOST_STATIC_CONSTANT(bool, value = (boost::is_same<T, int>::value));
+};
+
+template <class T, class U>
+struct mult_traits {
+  typedef typename T::does_not_exist type;
+};
+
+template <>
+struct mult_traits<int, int> {
+  typedef int type;
+};
+
+
+// Next, a forwarding function mult() is defined.  It is enabled only
+// when both arguments are of type int.  The first version, using
+// non-lazy enable_if_c does not work.
+
+#if 0
+template <class T, class U>
+typename enable_if_c<
+  is_int<T>::value && is_int<U>::value,
+  typename mult_traits<T, U>::type
+>::type
+mult(const T& x, const U& y) {return x * y;}
+#endif
+
+// A correct version uses lazy_enable_if_c.
+// This template removes compiler errors from invalid code used as an
+// argument to enable_if_c.
+
+#if 1
+template <class T, class U>
+typename lazy_enable_if_c<
+  is_int<T>::value & is_int<U>::value,
+  mult_traits<T, U> 
+>::type
+mult(const T& x, const U& y) {return x * y;}
+#endif
+
+double mult(int i, double d) { return (double)i * d; }
+
+int test_main(int, char*[])
+{
+
+
+  BOOST_CHECK(mult(1, 2) == 2);
+
+  BOOST_CHECK(mult(1, 3.0) == 3.0);
+
+  return 0;
+}
+

enable_if/test/lazy_test.cpp

@@ -0,0 +1,100 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+// Testing all variations of lazy_enable_if.
+
+#include <boost/test/minimal.hpp>
+#include <boost/mpl/not.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+using boost::lazy_enable_if;
+using boost::lazy_disable_if;
+
+using boost::lazy_enable_if_c;
+using boost::lazy_disable_if_c;
+
+
+template <class T>
+struct is_int_or_double {
+  BOOST_STATIC_CONSTANT(bool, 
+    value = (boost::is_same<T, int>::value || 
+             boost::is_same<T, double>::value));
+};
+
+template <class T>
+struct some_traits {
+  typedef typename T::does_not_exist type;
+};
+
+template <>
+struct some_traits<int> {
+  typedef bool type;
+};
+
+template <>
+struct some_traits<double> {
+  typedef bool type;
+};
+
+template <class T>
+struct make_bool {
+  typedef bool type;
+};
+
+template <>
+struct make_bool<int> {};
+
+template <>
+struct make_bool<double> {};
+
+namespace A {
+
+  template<class T>
+  typename lazy_enable_if<is_int_or_double<T>, some_traits<T> >::type
+  foo(T t) { return true; }
+
+  template<class T>
+  typename lazy_enable_if_c<is_int_or_double<T>::value, some_traits<T> >::type
+  foo2(T t) { return true; }
+}
+
+namespace B {
+  template<class T>
+  typename lazy_disable_if<is_int_or_double<T>, make_bool<T> >::type
+  foo(T t) { return false; }
+
+  template<class T>
+  typename lazy_disable_if_c<is_int_or_double<T>::value, make_bool<T> >::type
+  foo2(T t) { return false; }
+}
+
+int test_main(int, char*[])
+{
+  using namespace A;
+  using namespace B;
+  BOOST_CHECK(foo(1));
+  BOOST_CHECK(foo(1.0));
+
+  BOOST_CHECK(!foo("1"));  
+  BOOST_CHECK(!foo(static_cast<void*>(0)));  
+
+  BOOST_CHECK(foo2(1));
+  BOOST_CHECK(foo2(1.0));
+
+  BOOST_CHECK(!foo2("1"));  
+  BOOST_CHECK(!foo2(static_cast<void*>(0)));  
+
+  return 0;
+}
+

enable_if/test/member_templates.cpp

@@ -0,0 +1,43 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::enable_if;
+using boost::disable_if;
+using boost::is_arithmetic;
+
+struct container {
+  template <class T>
+  typename enable_if<is_arithmetic<T>, bool>::type
+  arithmetic_object(const T&, const int* /* disambiguate */ = 0) {return true;}
+
+  template <class T>
+  typename disable_if<is_arithmetic<T>, bool>::type
+  arithmetic_object(const T&) {return false;}
+};
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(container().arithmetic_object(1));
+  BOOST_CHECK(container().arithmetic_object(1.0));
+
+  BOOST_CHECK(!container().arithmetic_object("1"));  
+  BOOST_CHECK(!container().arithmetic_object(static_cast<void*>(0)));  
+
+  return 0;
+}
+

enable_if/test/namespace_disambiguation.cpp

@@ -0,0 +1,47 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+#include <boost/mpl/not.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::enable_if;
+using boost::mpl::not_;
+using boost::is_arithmetic;
+
+namespace A {
+  template<class T>
+  typename enable_if<is_arithmetic<T>, bool>::type
+  arithmetic_object(T t) { return true; }
+}
+
+namespace B {
+  template<class T>
+  typename enable_if<not_<is_arithmetic<T> >, bool>::type
+  arithmetic_object(T t) { return false; }
+}
+
+int test_main(int, char*[])
+{
+  using namespace A;
+  using namespace B;
+  BOOST_CHECK(arithmetic_object(1));
+  BOOST_CHECK(arithmetic_object(1.0));
+
+  BOOST_CHECK(!arithmetic_object("1"));  
+  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
+
+  return 0;
+}
+

enable_if/test/no_disambiguation.cpp

@@ -0,0 +1,43 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+#include <boost/mpl/not.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::mpl::not_;
+using boost::enable_if;
+using boost::is_arithmetic;
+
+template<class T>
+typename enable_if<is_arithmetic<T>, bool>::type
+arithmetic_object(T t) { return true; }
+
+template<class T>
+typename enable_if<not_<is_arithmetic<T> >, bool>::type
+arithmetic_object(T t) { return false; }
+
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(arithmetic_object(1));
+  BOOST_CHECK(arithmetic_object(1.0));
+
+  BOOST_CHECK(!arithmetic_object("1"));  
+  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
+
+  return 0;
+}
+

enable_if/test/partial_specializations.cpp

@@ -0,0 +1,67 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::enable_if_c;
+using boost::disable_if_c;
+using boost::enable_if;
+using boost::disable_if;
+using boost::is_arithmetic;
+
+template <class T, class Enable = void>
+struct tester;
+
+template <class T>
+struct tester<T, typename enable_if_c<is_arithmetic<T>::value>::type> {
+  BOOST_STATIC_CONSTANT(bool, value = true);
+};
+
+template <class T>
+struct tester<T, typename disable_if_c<is_arithmetic<T>::value>::type> {
+  BOOST_STATIC_CONSTANT(bool, value = false);
+};
+
+template <class T, class Enable = void>
+struct tester2;
+
+template <class T>
+struct tester2<T, typename enable_if<is_arithmetic<T> >::type> {
+  BOOST_STATIC_CONSTANT(bool, value = true);
+};
+
+template <class T>
+struct tester2<T, typename disable_if<is_arithmetic<T> >::type> {
+  BOOST_STATIC_CONSTANT(bool, value = false);
+};
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(tester<int>::value);
+  BOOST_CHECK(tester<double>::value);
+
+  BOOST_CHECK(!tester<char*>::value);
+  BOOST_CHECK(!tester<void*>::value);
+
+  BOOST_CHECK(tester2<int>::value);
+  BOOST_CHECK(tester2<double>::value);
+
+  BOOST_CHECK(!tester2<char*>::value);
+  BOOST_CHECK(!tester2<void*>::value);
+
+  return 0;
+}
+

generator_iterator.htm

@@ -0,0 +1,163 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+
+<html>
+<head>
+  <meta http-equiv="Content-Language" content="en-us">
+  <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
+
+  <title>Generator Iterator Adaptor Documentation</title>
+</head>
+
+<body bgcolor="#FFFFFF" text="#000000">
+  <img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle"
+  width="277" height="86">
+
+  <h1>Generator Iterator Adaptor</h1>
+
+  <p>Defined in header <a href=
+  "../../boost/generator_iterator.hpp">boost/generator_iterator.hpp</a></p>
+
+  <p>The generator iterator adaptor makes it easier to create custom input
+  iterators from 0-ary functions and function objects. The adaptor takes a
+  <a href="http://www.sgi.com/tech/stl/Generator.html">Generator</a> and
+  creates a model of <a href=
+  "http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>. Each
+  increment retrieves an item from the generator and makes it available to be
+  retrieved by dereferencing. The motivation for this iterator is that some
+  concepts can be more naturally expressed as a generator, while most STL
+  algorithms expect an iterator. An example is the <a href=
+  "../random/index.html">Random Number</a> library.</p>
+
+  <h2>Synopsis</h2>
+
+  <blockquote>
+    <pre>
+namespace boost {
+  template &lt;class Generator&gt;
+  class generator_iterator_policies;
+
+  template &lt;class Generator&gt;
+  class generator_iterator_generator;
+
+  template &lt;class Generator&gt;
+  typename generator_iterator_generator&lt;Generator&gt;::type
+  make_generator_iterator(Generator &amp; gen);
+}
+</pre>
+  </blockquote>
+  <hr>
+
+  <h2>The Generator Iterator Generator Class</h2>
+
+  <p>The class generator_iterator_generator is a helper class whose purpose
+  is to construct a generator iterator type. The template parameter for this
+  class is the Generator function object type that is being wrapped. The
+  generator iterator adaptor only holds a reference (or pointer) to the
+  function object, therefore the function object must outlive the generator
+  iterator adaptor constructed from it.</p>
+  <pre>
+template &lt;class Generator&gt;
+class generator_iterator_generator
+{
+public:
+  typedef <i>unspecified</i> type; // the resulting generator iterator type 
+}
+</pre>
+
+  <h3>Template Parameters</h3>
+
+  <table border summary="">
+    <tr>
+      <th>Parameter</th>
+
+      <th>Description</th>
+    </tr>
+
+    <tr>
+      <td><tt><a href=
+      "http://www.sgi.com/tech/stl/Generator.html">Generator</a></tt></td>
+
+      <td>The generator (0-ary function object) type being wrapped. The
+      return type of the function must be defined as
+      <tt>Generator::result_type</tt>. The function object must be a model of
+      <a href=
+      "http://www.sgi.com/tech/stl/Generator.html">Generator</a>.</td>
+    </tr>
+  </table>
+
+  <h3>Concept Model</h3>
+
+  <p>The generator iterator class is a model of <a href=
+  "http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>.</p>
+
+  <h3>Members</h3>
+
+  <p>The generator iterator implements the member functions and operators
+  required of the <a href=
+  "http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>
+  concept.<br></p>
+  <hr>
+
+  <h2><a name="make_generator_iterator" id="make_generator_iterator">The
+  Generator Iterator Object Generator</a></h2>
+
+  <p>The <tt>make_generator_iterator()</tt> function provides a convenient
+  way to create generator iterator objects. The function saves the user the
+  trouble of explicitly writing out the iterator types.</p>
+
+  <blockquote>
+    <pre>
+template &lt;class Generator&gt;
+typename generator_iterator_generator&lt;Generator&gt;::type
+make_generator_iterator(Generator &amp; gen);
+</pre>
+  </blockquote>
+  <hr>
+
+  <h3>Example</h3>
+
+  <p>The following program shows how <code>generator_iterator</code>
+  transforms a generator into an input iterator.</p>
+
+  <blockquote>
+    <pre>
+#include &lt;iostream&gt;
+#include &lt;boost/generator_iterator.hpp&gt;
+
+class my_generator
+{
+public:
+  typedef int result_type;
+  my_generator() : state(0) { }
+  int operator()() { return ++state; }
+private:
+  int state;
+};
+
+int main()
+{
+  my_generator gen;
+  boost::generator_iterator_generator&lt;my_generator&gt;::type it = boost::make_generator_iterator(gen);
+  for(int i = 0; i &lt; 10; ++i, ++it)
+    std::cout &lt;&lt; *it &lt;&lt; std::endl;
+}
+</pre>
+  </blockquote>
+  <hr>
+
+  <p><a href="http://validator.w3.org/check?uri=referer"><img border="0" src=
+  "../../doc/images/valid-html401.png" alt="Valid HTML 4.01 Transitional"
+  height="31" width="88"></a></p>
+
+  <p>Revised 
+  <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->05 December, 2006<!--webbot bot="Timestamp" endspan i-checksum="38516" --></p>
+
+  <p><i>Copyright &copy; 2001 <a href=
+  "http://www.boost.org/people/jens_maurer.htm">Jens Maurer</a></i></p>
+
+  <p><i>Distributed under the Boost Software License, Version 1.0. (See
+  accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
+  copy at <a href=
+  "http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p>
+</body>
+</html>

identity_type/index.html

@@ -6,7 +6,7 @@
   <body>
     Automatic redirection failed, click this 
     <a href="doc/html/index.html">link</a> &nbsp;<hr>
-    <p>Copyright © Lorenzo Caminiti, 2009-2012</p>
+    <p><EFBFBD> Copyright Lorenzo Caminiti, 2009-2012</p>
     <p>Distributed under the Boost Software License, Version 1.0 (see 
     accompanying file <a href="../../../LICENSE_1_0.txt">
     LICENSE_1_0.txt</a> or a copy at

in_place_factories.html

@@ -1,19 +1,296 @@
-<html>
-<head>
-    <title>Boost.InPlaceFactory</title>
-    <meta http-equiv="refresh" content="0; URL=./doc/html/utility/utilities/in_place_factory.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="./doc/html/utility/utilities/in_place_factory.html">./doc/html/utility/utilities/in_place_factory.html</a>
+<!DOCTYPE HTML PUBLIC "-//SoftQuad Software//DTD HoTMetaL PRO 5.0::19981217::extensions to HTML 4.0//EN" "hmpro5.dtd">
+
+<HTML>
+
+<HEAD>
+<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
+<TITLE>In_place_factory Documentation</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#800080">
+<H2 align="left"><IMG SRC="../../boost.png" WIDTH="276" HEIGHT="86"></H2>
+
+<blockquote>
+  <blockquote>
+    <blockquote>
+      <blockquote>
+        <blockquote>
+          <blockquote>
+<H2 align="left">Header &lt;<A
+HREF="../../boost/utility/in_place_factory.hpp">boost/utility/in_place_factory.hpp</A>&gt; </H2>
+
+<H2 align="left">Header &lt;<A
+HREF="../../boost/utility/typed_in_place_factory.hpp">boost/utility/typed_in_place_factory.hpp</A>&gt; </H2>
+
+          </blockquote>
+        </blockquote>
+      </blockquote>
+    </blockquote>
+  </blockquote>
+</blockquote>
+<p>&nbsp;</p>
+
+<H2>Contents</H2>
+<DL CLASS="page-index">
+  <DT><A HREF="#mot">Motivation</A></DT>
+  <DT><A HREF="#framework">Framework</A></DT>
+  <DT><A HREF="#specification">Specification</A></DT>
+  <DT><A HREF="#container-usage">Container-side Usage</A></DT>
+  <DT><A HREF="#user-usage">User-side Usage</A></DT>
+</DL>
+
+<HR>
+
+<H2><A NAME="mot"></A>Motivation</H2>
+
+<p>Suppose we have a class</p>
+<pre>struct X
+{
+  X ( int, std::string ) ;
+} ;</pre>
+<p>And a container for it which supports an empty state (that is, which can contain zero objects):</p>
+<pre>struct C
+{
+   C() : contained_(0) {}
+  ~C() { delete contained_ ; }
+  X* contained_ ;
+} ;</pre>
+<p>A container designed to support an empty state typically doesn't require the contained type to be DefaultConstructible,
+but it typically requires it to be CopyConstructible as a mechanism to
+initialize the object to store:</p>
+<pre>struct C
+{
+   C() : contained_(0) {}
+   C ( X const& v ) : contained_ ( new X(v) ) {}
+  ~C() { delete contained_ ; }
+  X* contained_ ;
+} ;</pre>
+<p>There is a subtle problem with this: since the mechanism used to initialize the stored object is copy construction,
+there must exist a previously constructed source object to copy from. This
+object is likely to be temporary and serve no purpose besides being the source</p>
+<pre>void foo()
+{
+  // Temporary object created.
+  C c( X(123,"hello") ) ;
+}
+</pre>
+<p>A solution to this problem is to support direct construction of the contained
+object right in the container's storage.<br>
+In this scheme, the user supplies the arguments for the X constructor
+directly to the container:</p>
+<pre>struct C
+{
+   C() : contained_(0) {}
+   C ( X const& v ) : contained_ ( new X(v) ) {}
+   C ( int a0, std::string a1 ) : contained_ ( new X(a0,a1) ) {}
+  ~C() { delete contained_ ; }
+  X* contained_ ;
+} ;</pre>
+<pre>void foo()
+{
+  // Wrapped object constructed in-place
+  // No temporary created.
+  C c(123,"hello") ;
+}
+</pre>
+<p>Clearly, this solution doesn't scale well since the container must duplicate all the constructor overloads from the contained type
+(at least all those which are to be supported directly in the container).</p>
+
+<H2><A NAME="framework"></A>Framework</H2>
+<p>
+This library proposes a framework to allow some containers to directly contruct contained objects in-place without requiring
+the entire set of constructor overloads from the contained type. It also allows the container to remove the CopyConstuctible
+requirement from the contained type since objects can be directly constructed in-place without need of a copy.<br>
+The only requirement on the container is that it must provide proper storage (that is, correctly aligned and sized).
+Naturally, the container will typically support uninitialized storage to avoid the in-place construction to override
+a fully-constructed object (as this would defeat the purpose of in-place construction)
+</p>
+<p>For this purpose, the framework provides two families of classes collectively called: InPlaceFactories and TypedInPlaceFactories.<br>
+Essentially, these classes hold a sequence of actual parameters and a method to contruct an object in place using these parameters.
+Each member of the family differs only in the number (and type) of the parameter list. The first family
+takes the type of the object to construct directly in method provided for that
+purpose, whereas the second family incorporates that type in the factory class
+itself..</p>
+<p>From the container POV, using the framework amounts to calling the factory's method to contruct the object in place.
+From the user POV, it amounts to creating the right factory object to hold the parameters and pass it to the container.<br>
+The following simplified example shows the basic idea. A complete example follows the formal specification of the framework:</p>
+<pre>struct C
+{
+   template&lt;class InPlaceFactory&gt;
+   C ( InPlaceFactory const& aFactory )
+    :
+    contained_ ( uninitialized_storage() )
+   {
+     aFactory.template apply&lt;X&gt;(contained_);
+   }
+
+  ~C() 
+  { 
+    contained_ -> X::~X();
+    delete[] contained_ ; 
+  }
+
+  char* uninitialized_storage() { return new char[sizeof(X)] ; }
+
+  char* contained_ ;
+} ;
+
+void foo()
+{
+  C c( in_place(123,"hello") ) ;
+}
+</pre>
+
+<HR>
+
+<H2><A NAME="specification">Specification</A></H2>
+
+<p>The following is the first member of the family of 'in_place_factory' classes, along with its corresponding helper template function.
+The rest of the family varies only in the number and type of template (and constructor) parameters.</p>
+<PRE>namespace boost {
+
+struct in_place_factory_base {} ;
+
+template&lt;class A0&gt;
+class in_place_factory : public in_place_factory_base
+{
+  public:</PRE>
+
+<PRE>    in_place_factory ( A0 const& a0 ) : m_a0(a0) {}
+
+    template&lt; class T &gt;
+    void apply ( void* address ) const
+    {
+      new (address) T(m_a0);
+    }
+
+  private:</PRE>
+
+<PRE>    A0 const& m_a0 ;
+} ;
+
+template&lt;class A0&gt;
+in_place_factory&lt;A0&gt; in_place ( A0 const& a0 )
+{
+  return in_place_factory&lt;A0&gt;(a0);
+}
+</PRE>
+
+<p>Similarly, the following is the first member of the family of 'typed_in_place_factory' classes, along with its corresponding
+helper template function. The rest of the family varies only in the number and type of template (and constructor) parameters.</p>
+<PRE>namespace boost {
+
+struct typed_in_place_factory_base {} ;
+
+template&lt;class T, class A0&gt;
+class typed_in_place_factory : public typed_in_place_factory_base
+{
+  public:</PRE>
+
+<PRE>    typed_in_place_factory ( A0 const& a0 ) : m_a0(a0) {}
+
+    void apply ( void* address ) const
+    {
+      new (address) T(m_a0);
+    }
+
+  private:</PRE>
+
+<PRE>    A0 const& m_a0 ;
+} ;
+
+template&lt;class T, class A0&gt;
+typed_in_place_factory&lt;A0&gt; in_place ( A0 const& a0 )
+{
+  return typed_in_place_factory&lt;T,A0&gt;(a0);
+}</PRE>
+
+<PRE>}
+</PRE>
+
+<p>As you can see, the 'in_place_factory' and 'typed_in_place_factory' template classes varies only in the way they specify
+the target type: in the first family, the type is given as a template argument to the apply member function while in the
+second it is given directly as part of the factory class.<br>
+When the container holds a unique non-polymorphic type (such as the case of Boost.Optional), it knows the exact dynamic-type
+of the contained object and can pass it to the apply() method of a (non-typed) factory.
+In this case, end users can use an 'in_place_factory' instance which can be constructed without the type of the object to construct.<br>
+However, if the container holds heterogeneous or polymorphic objects (such as the case of Boost.Variant), the dynamic-type
+of the object to be constructed must be known by the factory itslef. In this case, end users must use a 'typed_in_place_factory'
+instead.</p>
+
+<HR>
+
+<h2><A NAME="container-usage">Container-side Usage</a></h2>
+
+<p>As shown in the introductory simplified example, the container class must
+contain methods that accept an instance of
+these factories and pass the object's storage to the factory's apply method.<br>
+However, the type of the factory class cannot be completly specified in the container class because that would
+defeat the whole purpose of the factories which is to allow the container to accept a variadic argument list
+for the constructor of its contained object.<br>
+The correct function overload must be based on the only distinctive and common
+characteristic of all the classes in each family, the base class.<br>
+Depending on the container class, you can use 'enable_if' to generate the right overload, or use the following
+dispatch technique (used in the Boost.Optional class):
+</p>
+<pre>struct C
+{
+   C() : contained_(0) {}
+   C ( X const& v ) : contained_ ( new X(v) ) {}
+
+   template&lt;class Expr&gt
+   C ( Expr const& expr )
+    :
+    contained_ ( uninitialized_storage() )
+   {
+    construct(expr,&expr)
+   }
+
+  ~C() { delete contained_ ; }
+
+  template&lt;class InPlaceFactory&gt;
+  void construct ( InPlaceFactory const& aFactory, boost::in_place_factory_base* )
+  {
+    aFactory.template apply&lt;X&gt;(contained_);
+  }
+
+  template&lt;class TypedInPlaceFactory&gt;
+  void construct ( TypedInPlaceFactory const& aFactory, boost::typed_in_place_factory_base* )
+  {
+    aFactory.apply(contained_);
+  }
+
+  X* uninitialized_storage() { return static_cast&lt;X*&gt;(new char[sizeof(X)]) ; }
+
+  X* contained_ ;
+} ;
+</pre>
+
 <hr>
-<tt>
-    Boost.InPlaceFactory<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
-</body>
-</html>
+
+<h2><A NAME="user-usage">User-side Usage</a></h2>
+
+<p>End users pass to the container an instance of a factory object holding the actual parameters needed to construct the
+contained object directly within the container. For this, the helper template function 'in_place' is used.<br>
+The call 'in_place(a0,a1,a2,...,an)' constructs a (non-typed) 'in_place_factory' instance with the given argument list.<br>
+The call 'in_place&lt;T&gt;(a0,a1,a2,...,an)' constructs a 'typed_in_place_factory' instance with the given argument list for the
+type 'T'.</p>
+<pre>void foo()
+{
+  C a( in_place(123,"hello") ) ;    // in_place_factory passed
+  C b( in_place&lt;X&gt;(456,"world") ) ; // typed_in_place_factory passed
+}
+</pre>
+
+<P>Revised September 17, 2004</P>
+<p><EFBFBD> Copyright Fernando Luis Cacciola Carballal, 2004</p>
+<p> Use, modification, and distribution are subject to the Boost Software
+License, Version 1.0. (See accompanying file <a href="../../LICENSE_1_0.txt">
+LICENSE_1_0.txt</a> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
+www.boost.org/LICENSE_1_0.txt</a>)</p>
+<P>Developed by <A HREF="mailto:fernando_cacciola@hotmail.com">Fernando Cacciola</A>,
+the latest version of this file can be found at <A
+HREF="http://www.boost.org">www.boost.org</A>, and the boost
+<A HREF="http://www.boost.org/more/mailing_lists.htm#main">discussion lists</A></P>
+</BODY>
+</HTML>

include/boost/assert.hpp

@@ -0,0 +1,141 @@
+//
+//  boost/assert.hpp - BOOST_ASSERT(expr)
+//                     BOOST_ASSERT_MSG(expr, msg)
+//                     BOOST_VERIFY(expr)
+//
+//  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2007 Peter Dimov
+//  Copyright (c) Beman Dawes 2011
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//  Note: There are no include guards. This is intentional.
+//
+//  See http://www.boost.org/libs/utility/assert.html for documentation.
+//
+
+//
+// Stop inspect complaining about use of 'assert':
+//
+// boostinspect:naassert_macro
+//
+
+//--------------------------------------------------------------------------------------//
+//                                     BOOST_ASSERT                                     //
+//--------------------------------------------------------------------------------------//
+
+#undef BOOST_ASSERT
+
+#if defined(BOOST_DISABLE_ASSERTS)
+
+# define BOOST_ASSERT(expr) ((void)0)
+
+#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
+
+#include <boost/config.hpp>
+#include <boost/current_function.hpp>
+
+namespace boost
+{
+  void assertion_failed(char const * expr,
+                        char const * function, char const * file, long line); // user defined
+} // namespace boost
+
+#define BOOST_ASSERT(expr) (BOOST_LIKELY(!!(expr)) \
+  ? ((void)0) \
+  : ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+
+#else
+# include <assert.h> // .h to support old libraries w/o <cassert> - effect is the same
+# define BOOST_ASSERT(expr) assert(expr)
+#endif
+
+//--------------------------------------------------------------------------------------//
+//                                   BOOST_ASSERT_MSG                                   //
+//--------------------------------------------------------------------------------------//
+
+# undef BOOST_ASSERT_MSG
+
+#if defined(BOOST_DISABLE_ASSERTS) || defined(NDEBUG)
+
+  #define BOOST_ASSERT_MSG(expr, msg) ((void)0)
+
+#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
+
+  #include <boost/config.hpp>
+  #include <boost/current_function.hpp>
+
+  namespace boost
+  {
+    void assertion_failed_msg(char const * expr, char const * msg,
+                              char const * function, char const * file, long line); // user defined
+  } // namespace boost
+
+  #define BOOST_ASSERT_MSG(expr, msg) (BOOST_LIKELY(!!(expr)) \
+    ? ((void)0) \
+    : ::boost::assertion_failed_msg(#expr, msg, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+
+#else
+  #ifndef BOOST_ASSERT_HPP
+    #define BOOST_ASSERT_HPP
+    #include <cstdlib>
+    #include <iostream>
+    #include <boost/config.hpp>
+    #include <boost/current_function.hpp>
+
+    //  IDE's like Visual Studio perform better if output goes to std::cout or
+    //  some other stream, so allow user to configure output stream:
+    #ifndef BOOST_ASSERT_MSG_OSTREAM
+    # define BOOST_ASSERT_MSG_OSTREAM std::cerr
+    #endif
+
+    namespace boost
+    {
+      namespace assertion
+      {
+        namespace detail
+        {
+          // Note: The template is needed to make the function non-inline and avoid linking errors
+          template< typename CharT >
+          BOOST_NOINLINE void assertion_failed_msg(CharT const * expr, char const * msg, char const * function,
+            char const * file, long line)
+          {
+            BOOST_ASSERT_MSG_OSTREAM
+              << "***** Internal Program Error - assertion (" << expr << ") failed in "
+              << function << ":\n"
+              << file << '(' << line << "): " << msg << std::endl;
+#ifdef UNDER_CE
+            // The Windows CE CRT library does not have abort() so use exit(-1) instead.
+            std::exit(-1);
+#else
+            std::abort();
+#endif
+          }
+        } // detail
+      } // assertion
+    } // detail
+  #endif
+
+  #define BOOST_ASSERT_MSG(expr, msg) (BOOST_LIKELY(!!(expr)) \
+    ? ((void)0) \
+    : ::boost::assertion::detail::assertion_failed_msg(#expr, msg, \
+          BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+#endif
+
+//--------------------------------------------------------------------------------------//
+//                                     BOOST_VERIFY                                     //
+//--------------------------------------------------------------------------------------//
+
+#undef BOOST_VERIFY
+
+#if defined(BOOST_DISABLE_ASSERTS) || ( !defined(BOOST_ENABLE_ASSERT_HANDLER) && defined(NDEBUG) )
+
+# define BOOST_VERIFY(expr) ((void)(expr))
+
+#else
+
+# define BOOST_VERIFY(expr) BOOST_ASSERT(expr)
+
+#endif

include/boost/call_traits.hpp

@@ -5,7 +5,7 @@
 //
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
-//  See boost/detail/call_traits.hpp
+//  See boost/detail/call_traits.hpp and boost/detail/ob_call_traits.hpp
 //  for full copyright notices.
 
 #ifndef BOOST_CALL_TRAITS_HPP
@@ -15,6 +15,10 @@
 #include <boost/config.hpp>
 #endif
 
+#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#include <boost/detail/ob_call_traits.hpp>
+#else
 #include <boost/detail/call_traits.hpp>
+#endif
 
 #endif // BOOST_CALL_TRAITS_HPP

include/boost/checked_delete.hpp

@@ -0,0 +1,69 @@
+#ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED
+#define BOOST_CHECKED_DELETE_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  boost/checked_delete.hpp
+//
+//  Copyright (c) 2002, 2003 Peter Dimov
+//  Copyright (c) 2003 Daniel Frey
+//  Copyright (c) 2003 Howard Hinnant
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//  See http://www.boost.org/libs/utility/checked_delete.html for documentation.
+//
+
+namespace boost
+{
+
+// verify that types are complete for increased safety
+
+template<class T> inline void checked_delete(T * x)
+{
+    // intentionally complex - simplification causes regressions
+    typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
+    (void) sizeof(type_must_be_complete);
+    delete x;
+}
+
+template<class T> inline void checked_array_delete(T * x)
+{
+    typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
+    (void) sizeof(type_must_be_complete);
+    delete [] x;
+}
+
+template<class T> struct checked_deleter
+{
+    typedef void result_type;
+    typedef T * argument_type;
+
+    void operator()(T * x) const
+    {
+        // boost:: disables ADL
+        boost::checked_delete(x);
+    }
+};
+
+template<class T> struct checked_array_deleter
+{
+    typedef void result_type;
+    typedef T * argument_type;
+
+    void operator()(T * x) const
+    {
+        boost::checked_array_delete(x);
+    }
+};
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED

include/boost/compressed_pair.hpp

@@ -5,7 +5,7 @@
 //
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
-//  See boost/detail/compressed_pair.hpp
+//  See boost/detail/compressed_pair.hpp and boost/detail/ob_compressed_pair.hpp
 //  for full copyright notices.
 
 #ifndef BOOST_COMPRESSED_PAIR_HPP
@@ -15,6 +15,10 @@
 #include <boost/config.hpp>
 #endif
 
+#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#include <boost/detail/ob_compressed_pair.hpp>
+#else
 #include <boost/detail/compressed_pair.hpp>
+#endif
 
 #endif // BOOST_COMPRESSED_PAIR_HPP

include/boost/current_function.hpp

@@ -0,0 +1,68 @@
+#ifndef BOOST_CURRENT_FUNCTION_HPP_INCLUDED
+#define BOOST_CURRENT_FUNCTION_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  boost/current_function.hpp - BOOST_CURRENT_FUNCTION
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//  http://www.boost.org/libs/utility/current_function.html
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void current_function_helper()
+{
+
+#if defined(__GNUC__) || (defined(__MWERKS__) && (__MWERKS__ >= 0x3000)) || (defined(__ICC) && (__ICC >= 600)) || defined(__ghs__)
+
+# define BOOST_CURRENT_FUNCTION __PRETTY_FUNCTION__
+
+#elif defined(__DMC__) && (__DMC__ >= 0x810)
+
+# define BOOST_CURRENT_FUNCTION __PRETTY_FUNCTION__
+
+#elif defined(__FUNCSIG__)
+
+# define BOOST_CURRENT_FUNCTION __FUNCSIG__
+
+#elif (defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 600)) || (defined(__IBMCPP__) && (__IBMCPP__ >= 500))
+
+# define BOOST_CURRENT_FUNCTION __FUNCTION__
+
+#elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x550)
+
+# define BOOST_CURRENT_FUNCTION __FUNC__
+
+#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
+
+# define BOOST_CURRENT_FUNCTION __func__
+
+#else
+
+# define BOOST_CURRENT_FUNCTION "(unknown)"
+
+#endif
+
+}
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_CURRENT_FUNCTION_HPP_INCLUDED
+

include/boost/detail/call_traits.hpp

@@ -100,7 +100,7 @@ struct call_traits<T&>
    typedef T& param_type;  // hh removed const
 };
 
-#if BOOST_WORKAROUND( BOOST_BORLANDC,  < 0x5A0 )
+#if BOOST_WORKAROUND( __BORLANDC__,  < 0x5A0 )
 // these are illegal specialisations; cv-qualifies applied to
 // references have no effect according to [8.3.2p1],
 // C++ Builder requires them though as it treats cv-qualified

include/boost/detail/compressed_pair.hpp

@@ -6,7 +6,7 @@
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
 // compressed_pair: pair that "compresses" empty members
-// (see libs/utility/doc/html/compressed_pair.html)
+// (see libs/utility/compressed_pair.htm)
 //
 // JM changes 25 Jan 2004:
 // For the case where T1 == T2 and both are empty, then first() and second()
@@ -24,7 +24,6 @@
 
 #include <boost/type_traits/remove_cv.hpp>
 #include <boost/type_traits/is_empty.hpp>
-#include <boost/type_traits/is_final.hpp>
 #include <boost/type_traits/is_same.hpp>
 #include <boost/call_traits.hpp>
 
@@ -43,14 +42,6 @@ class compressed_pair;
 
 namespace details
 {
-   template<class T, bool E = boost::is_final<T>::value>
-   struct compressed_pair_empty
-      : ::boost::false_type { };
-
-   template<class T>
-   struct compressed_pair_empty<T, false>
-      : ::boost::is_empty<T> { };
-
    // JM altered 26 Jan 2000:
    template <class T1, class T2, bool IsSame, bool FirstEmpty, bool SecondEmpty>
    struct compressed_pair_switch;
@@ -347,15 +338,13 @@ namespace details
 
 template <class T1, class T2>
 class compressed_pair
-#ifndef BOOST_UTILITY_DOCS
-    : private ::boost::details::compressed_pair_imp<T1, T2,
+   : private ::boost::details::compressed_pair_imp<T1, T2,
              ::boost::details::compressed_pair_switch<
                     T1,
                     T2,
                     ::boost::is_same<typename remove_cv<T1>::type, typename remove_cv<T2>::type>::value,
-                    ::boost::details::compressed_pair_empty<T1>::value,
-                    ::boost::details::compressed_pair_empty<T2>::value>::value>
-#endif // BOOST_UTILITY_DOCS
+                    ::boost::is_empty<T1>::value,
+                    ::boost::is_empty<T2>::value>::value>
 {
 private:
    typedef details::compressed_pair_imp<T1, T2,
@@ -363,8 +352,8 @@ private:
                     T1,
                     T2,
                     ::boost::is_same<typename remove_cv<T1>::type, typename remove_cv<T2>::type>::value,
-                    ::boost::details::compressed_pair_empty<T1>::value,
-                    ::boost::details::compressed_pair_empty<T2>::value>::value> base;
+                    ::boost::is_empty<T1>::value,
+                    ::boost::is_empty<T2>::value>::value> base;
 public:
    typedef T1                                                 first_type;
    typedef T2                                                 second_type;
@@ -394,15 +383,13 @@ public:
 //
 template <class T>
 class compressed_pair<T, T>
-#ifndef BOOST_UTILITY_DOCS
    : private details::compressed_pair_imp<T, T,
              ::boost::details::compressed_pair_switch<
                     T,
                     T,
                     ::boost::is_same<typename remove_cv<T>::type, typename remove_cv<T>::type>::value,
-                    ::boost::details::compressed_pair_empty<T>::value,
-                    ::boost::details::compressed_pair_empty<T>::value>::value>
-#endif // BOOST_UTILITY_DOCS
+                    ::boost::is_empty<T>::value,
+                    ::boost::is_empty<T>::value>::value>
 {
 private:
    typedef details::compressed_pair_imp<T, T,
@@ -410,8 +397,8 @@ private:
                     T,
                     T,
                     ::boost::is_same<typename remove_cv<T>::type, typename remove_cv<T>::type>::value,
-                    ::boost::details::compressed_pair_empty<T>::value,
-                    ::boost::details::compressed_pair_empty<T>::value>::value> base;
+                    ::boost::is_empty<T>::value,
+                    ::boost::is_empty<T>::value>::value> base;
 public:
    typedef T                                                  first_type;
    typedef T                                                  second_type;

include/boost/detail/ob_call_traits.hpp

@@ -0,0 +1,168 @@
+//  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
+//  Use, modification and distribution are subject to the Boost Software License,
+//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt).
+//
+//  See http://www.boost.org/libs/utility for most recent version including documentation.
+//
+//  Crippled version for crippled compilers:
+//  see libs/utility/call_traits.htm
+//
+
+/* Release notes:
+   01st October 2000:
+      Fixed call_traits on VC6, using "poor man's partial specialisation",
+      using ideas taken from "Generative programming" by Krzysztof Czarnecki 
+      & Ulrich Eisenecker.
+*/
+
+#ifndef BOOST_OB_CALL_TRAITS_HPP
+#define BOOST_OB_CALL_TRAITS_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#include <boost/config.hpp>
+#endif
+
+#ifndef BOOST_ARITHMETIC_TYPE_TRAITS_HPP
+#include <boost/type_traits/arithmetic_traits.hpp>
+#endif
+#ifndef BOOST_COMPOSITE_TYPE_TRAITS_HPP
+#include <boost/type_traits/composite_traits.hpp>
+#endif
+
+namespace boost{
+
+#ifdef BOOST_MSVC6_MEMBER_TEMPLATES
+//
+// use member templates to emulate
+// partial specialisation:
+//
+namespace detail{
+
+template <class T>
+struct standard_call_traits
+{
+   typedef T value_type;
+   typedef T& reference;
+   typedef const T& const_reference;
+   typedef const T& param_type;
+};
+template <class T>
+struct simple_call_traits
+{
+   typedef T value_type;
+   typedef T& reference;
+   typedef const T& const_reference;
+   typedef const T param_type;
+};
+template <class T>
+struct reference_call_traits
+{
+   typedef T value_type;
+   typedef T reference;
+   typedef T const_reference;
+   typedef T param_type;
+};
+
+template <bool pointer, bool arithmetic, bool reference>
+struct call_traits_chooser
+{
+   template <class T>
+   struct rebind
+   {
+      typedef standard_call_traits<T> type;
+   };
+};
+
+template <>
+struct call_traits_chooser<true, false, false>
+{
+   template <class T>
+   struct rebind
+   {
+      typedef simple_call_traits<T> type;
+   };
+};
+
+template <>
+struct call_traits_chooser<false, false, true>
+{
+   template <class T>
+   struct rebind
+   {
+      typedef reference_call_traits<T> type;
+   };
+};
+
+template <bool size_is_small> 
+struct call_traits_sizeof_chooser2
+{
+   template <class T>
+   struct small_rebind
+   {
+      typedef simple_call_traits<T> small_type;
+   };
+};
+
+template<> 
+struct call_traits_sizeof_chooser2<false>
+{
+   template <class T>
+   struct small_rebind
+   {
+      typedef standard_call_traits<T> small_type;
+   };
+};
+
+template <>
+struct call_traits_chooser<false, true, false>
+{
+   template <class T>
+   struct rebind
+   {
+      enum { sizeof_choice = (sizeof(T) <= sizeof(void*)) };
+      typedef call_traits_sizeof_chooser2<(sizeof(T) <= sizeof(void*))> chooser;
+      typedef typename chooser::template small_rebind<T> bound_type;
+      typedef typename bound_type::small_type type;
+   };
+};
+
+} // namespace detail
+template <typename T>
+struct call_traits
+{
+private:
+    typedef detail::call_traits_chooser<
+         ::boost::is_pointer<T>::value,
+         ::boost::is_arithmetic<T>::value, 
+         ::boost::is_reference<T>::value
+      > chooser;
+   typedef typename chooser::template rebind<T> bound_type;
+   typedef typename bound_type::type call_traits_type;
+public:
+   typedef typename call_traits_type::value_type       value_type;
+   typedef typename call_traits_type::reference        reference;
+   typedef typename call_traits_type::const_reference  const_reference;
+   typedef typename call_traits_type::param_type       param_type;
+};
+
+#else
+//
+// sorry call_traits is completely non-functional
+// blame your broken compiler:
+//
+
+template <typename T>
+struct call_traits
+{
+   typedef T value_type;
+   typedef T& reference;
+   typedef const T& const_reference;
+   typedef const T& param_type;
+};
+
+#endif // member templates
+
+}
+
+#endif // BOOST_OB_CALL_TRAITS_HPP

include/boost/detail/ob_compressed_pair.hpp

@@ -20,11 +20,10 @@
       - John Maddock Jan 2000.
 */
 
-#ifndef BOOST_UTILITY_DOCS
+
 #ifndef BOOST_OB_COMPRESSED_PAIR_HPP
 #define BOOST_OB_COMPRESSED_PAIR_HPP
 
-
 #include <algorithm>
 #ifndef BOOST_OBJECT_TYPE_TRAITS_HPP
 #include <boost/type_traits/object_traits.hpp>
@@ -168,6 +167,17 @@ public:
    compressed_pair_1(const ::boost::compressed_pair<T1,T2>& x)
       : T2(x.second()), _first(x.first()) {}
 
+#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300
+  // Total weirdness. If the assignment to _first is moved after
+  // the call to the inherited operator=, then this breaks graph/test/graph.cpp
+  // by way of iterator_adaptor.
+  compressed_pair_1& operator=(const compressed_pair_1& x) {
+    _first = x._first;
+    T2::operator=(x);
+    return *this;
+  }
+#endif
+
    first_reference       first()       { return _first; }
    first_const_reference first() const { return _first; }
 
@@ -495,4 +505,6 @@ inline void swap(compressed_pair<T1, T2>& x, compressed_pair<T1, T2>& y)
 } // boost
 
 #endif // BOOST_OB_COMPRESSED_PAIR_HPP
-#endif // BOOST_UTILITY_DOCS
+
+
+

include/boost/generator_iterator.hpp

@@ -0,0 +1,80 @@
+// (C) Copyright Jens Maurer 2001.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// Revision History:
+
+// 15 Nov 2001   Jens Maurer
+//      created.
+
+//  See http://www.boost.org/libs/utility/iterator_adaptors.htm for documentation.
+
+#ifndef BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
+#define BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
+
+#include <boost/iterator/iterator_facade.hpp>
+#include <boost/ref.hpp>
+
+namespace boost {
+
+template<class Generator>
+class generator_iterator
+  : public iterator_facade<
+        generator_iterator<Generator>
+      , typename Generator::result_type
+      , single_pass_traversal_tag
+      , typename Generator::result_type const&
+    >
+{
+    typedef iterator_facade<
+        generator_iterator<Generator>
+      , typename Generator::result_type
+      , single_pass_traversal_tag
+      , typename Generator::result_type const&
+    > super_t;
+    
+ public:
+    generator_iterator() {}
+    generator_iterator(Generator* g) : m_g(g), m_value((*m_g)()) {}
+
+    void increment()
+    {
+        m_value = (*m_g)();
+    }
+
+    const typename Generator::result_type&
+    dereference() const
+    {
+        return m_value;
+    }
+
+    bool equal(generator_iterator const& y) const
+    {
+        return this->m_g == y.m_g && this->m_value == y.m_value;
+    }
+
+ private:
+    Generator* m_g;
+    typename Generator::result_type m_value;
+};
+
+template<class Generator>
+struct generator_iterator_generator
+{
+  typedef generator_iterator<Generator> type;
+};
+
+template <class Generator>
+inline generator_iterator<Generator>
+make_generator_iterator(Generator & gen)
+{
+  typedef generator_iterator<Generator> result_t;
+  return result_t(&gen);
+}
+
+} // namespace boost
+
+
+#endif // BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
+

include/boost/next_prior.hpp

@@ -0,0 +1,51 @@
+//  Boost next_prior.hpp header file  ---------------------------------------//
+
+//  (C) Copyright Dave Abrahams and Daniel Walker 1999-2003. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/utility for documentation.
+
+//  Revision History
+//  13 Dec 2003  Added next(x, n) and prior(x, n) (Daniel Walker)
+
+#ifndef BOOST_NEXT_PRIOR_HPP_INCLUDED
+#define BOOST_NEXT_PRIOR_HPP_INCLUDED
+
+#include <iterator>
+
+namespace boost {
+
+//  Helper functions for classes like bidirectional iterators not supporting
+//  operator+ and operator-
+//
+//  Usage:
+//    const std::list<T>::iterator p = get_some_iterator();
+//    const std::list<T>::iterator prev = boost::prior(p);
+//    const std::list<T>::iterator next = boost::next(prev, 2);
+
+//  Contributed by Dave Abrahams
+
+template <class T>
+inline T next(T x) { return ++x; }
+
+template <class T, class Distance>
+inline T next(T x, Distance n)
+{
+    std::advance(x, n);
+    return x;
+}
+
+template <class T>
+inline T prior(T x) { return --x; }
+
+template <class T, class Distance>
+inline T prior(T x, Distance n)
+{
+    std::advance(x, -n);
+    return x;
+}
+
+} // namespace boost
+
+#endif  // BOOST_NEXT_PRIOR_HPP_INCLUDED

include/boost/noncopyable.hpp

@@ -0,0 +1,48 @@
+//  Boost noncopyable.hpp header file  --------------------------------------//
+
+//  (C) Copyright Beman Dawes 1999-2003. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/utility for documentation.
+
+#ifndef BOOST_NONCOPYABLE_HPP_INCLUDED
+#define BOOST_NONCOPYABLE_HPP_INCLUDED
+
+#include <boost/config.hpp>
+
+namespace boost {
+
+//  Private copy constructor and copy assignment ensure classes derived from
+//  class noncopyable cannot be copied.
+
+//  Contributed by Dave Abrahams
+
+namespace noncopyable_  // protection from unintended ADL
+{
+  class noncopyable
+  {
+   protected:
+#ifndef BOOST_NO_DEFAULTED_FUNCTIONS
+    BOOST_CONSTEXPR noncopyable() = default;
+    ~noncopyable() = default;
+#else
+    noncopyable() {}
+      ~noncopyable() {}
+#endif
+#ifndef BOOST_NO_DELETED_FUNCTIONS
+        noncopyable( const noncopyable& ) = delete;
+        noncopyable& operator=( const noncopyable& ) = delete;
+#else
+    private:  // emphasize the following members are private
+      noncopyable( const noncopyable& );
+      noncopyable& operator=( const noncopyable& );
+#endif
+  };
+}
+
+typedef noncopyable_::noncopyable noncopyable;
+
+} // namespace boost
+
+#endif  // BOOST_NONCOPYABLE_HPP_INCLUDED

include/boost/operators_v1.hpp

@@ -1,951 +0,0 @@
-//  Boost operators.hpp header file  ----------------------------------------//
-
-//  (C) Copyright David Abrahams, Jeremy Siek, Daryle Walker 1999-2001.
-//  Distributed under the Boost Software License, Version 1.0. (See
-//  accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-
-//  See http://www.boost.org/libs/utility/operators.htm for documentation.
-
-//  Revision History
-//  22 Feb 16 Preserve old work-arounds. (Daniel Frey)
-//  16 Dec 10 Limit warning suppression for 4284 to older versions of VC++
-//            (Matthew Bradbury, fixes #4432)
-//  07 Aug 08 Added "euclidean" spelling. (Daniel Frey)
-//  03 Apr 08 Make sure "convertible to bool" is sufficient
-//            for T::operator<, etc. (Daniel Frey)
-//  24 May 07 Changed empty_base to depend on T, see
-//            http://svn.boost.org/trac/boost/ticket/979
-//  21 Oct 02 Modified implementation of operators to allow compilers with a
-//            correct named return value optimization (NRVO) to produce optimal
-//            code.  (Daniel Frey)
-//  02 Dec 01 Bug fixed in random_access_iteratable.  (Helmut Zeisel)
-//  28 Sep 01 Factored out iterator operator groups.  (Daryle Walker)
-//  27 Aug 01 'left' form for non commutative operators added;
-//            additional classes for groups of related operators added;
-//            workaround for empty base class optimization
-//            bug of GCC 3.0 (Helmut Zeisel)
-//  25 Jun 01 output_iterator_helper changes: removed default template 
-//            parameters, added support for self-proxying, additional 
-//            documentation and tests (Aleksey Gurtovoy)
-//  29 May 01 Added operator classes for << and >>.  Added input and output
-//            iterator helper classes.  Added classes to connect equality and
-//            relational operators.  Added classes for groups of related
-//            operators.  Reimplemented example operator and iterator helper
-//            classes in terms of the new groups.  (Daryle Walker, with help
-//            from Alexy Gurtovoy)
-//  11 Feb 01 Fixed bugs in the iterator helpers which prevented explicitly
-//            supplied arguments from actually being used (Dave Abrahams)
-//  04 Jul 00 Fixed NO_OPERATORS_IN_NAMESPACE bugs, major cleanup and
-//            refactoring of compiler workarounds, additional documentation
-//            (Alexy Gurtovoy and Mark Rodgers with some help and prompting from
-//            Dave Abrahams) 
-//  28 Jun 00 General cleanup and integration of bugfixes from Mark Rodgers and
-//            Jeremy Siek (Dave Abrahams)
-//  20 Jun 00 Changes to accommodate Borland C++Builder 4 and Borland C++ 5.5
-//            (Mark Rodgers)
-//  20 Jun 00 Minor fixes to the prior revision (Aleksey Gurtovoy)
-//  10 Jun 00 Support for the base class chaining technique was added
-//            (Aleksey Gurtovoy). See documentation and the comments below 
-//            for the details. 
-//  12 Dec 99 Initial version with iterator operators (Jeremy Siek)
-//  18 Nov 99 Change name "divideable" to "dividable", remove unnecessary
-//            specializations of dividable, subtractable, modable (Ed Brey) 
-//  17 Nov 99 Add comments (Beman Dawes)
-//            Remove unnecessary specialization of operators<> (Ed Brey)
-//  15 Nov 99 Fix less_than_comparable<T,U> second operand type for first two
-//            operators.(Beman Dawes)
-//  12 Nov 99 Add operators templates (Ed Brey)
-//  11 Nov 99 Add single template parameter version for compilers without
-//            partial specialization (Beman Dawes)
-//  10 Nov 99 Initial version
-
-// 10 Jun 00:
-// An additional optional template parameter was added to most of 
-// operator templates to support the base class chaining technique (see 
-// documentation for the details). Unfortunately, a straightforward
-// implementation of this change would have broken compatibility with the
-// previous version of the library by making it impossible to use the same
-// template name (e.g. 'addable') for both the 1- and 2-argument versions of
-// an operator template. This implementation solves the backward-compatibility
-// issue at the cost of some simplicity.
-//
-// One of the complications is an existence of special auxiliary class template
-// 'is_chained_base<>' (see 'detail' namespace below), which is used
-// to determine whether its template parameter is a library's operator template
-// or not. You have to specialize 'is_chained_base<>' for each new 
-// operator template you add to the library.
-//
-// However, most of the non-trivial implementation details are hidden behind 
-// several local macros defined below, and as soon as you understand them,
-// you understand the whole library implementation. 
-
-#ifndef BOOST_OPERATORS_V1_HPP
-#define BOOST_OPERATORS_V1_HPP
-
-#include <cstddef>
-#include <iterator>
-
-#include <boost/config.hpp>
-#include <boost/detail/workaround.hpp>
-
-#if defined(__sgi) && !defined(__GNUC__)
-#   pragma set woff 1234
-#endif
-
-#if BOOST_WORKAROUND(BOOST_MSVC, < 1600)
-#   pragma warning( disable : 4284 ) // complaint about return type of 
-#endif                               // operator-> not begin a UDT
-
-namespace boost {
-namespace detail {
-
-template <typename T> class empty_base {};
-
-} // namespace detail
-} // namespace boost
-
-// In this section we supply the xxxx1 and xxxx2 forms of the operator
-// templates, which are explicitly targeted at the 1-type-argument and
-// 2-type-argument operator forms, respectively. Some compilers get confused
-// when inline friend functions are overloaded in namespaces other than the
-// global namespace. When BOOST_NO_OPERATORS_IN_NAMESPACE is defined, all of
-// these templates must go in the global namespace.
-
-#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
-namespace boost
-{
-#endif
-
-//  Basic operator classes (contributed by Dave Abrahams) ------------------//
-
-//  Note that friend functions defined in a class are implicitly inline.
-//  See the C++ std, 11.4 [class.friend] paragraph 5
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct less_than_comparable2 : B
-{
-     friend bool operator<=(const T& x, const U& y) { return !static_cast<bool>(x > y); }
-     friend bool operator>=(const T& x, const U& y) { return !static_cast<bool>(x < y); }
-     friend bool operator>(const U& x, const T& y)  { return y < x; }
-     friend bool operator<(const U& x, const T& y)  { return y > x; }
-     friend bool operator<=(const U& x, const T& y) { return !static_cast<bool>(y < x); }
-     friend bool operator>=(const U& x, const T& y) { return !static_cast<bool>(y > x); }
-};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct less_than_comparable1 : B
-{
-     friend bool operator>(const T& x, const T& y)  { return y < x; }
-     friend bool operator<=(const T& x, const T& y) { return !static_cast<bool>(y < x); }
-     friend bool operator>=(const T& x, const T& y) { return !static_cast<bool>(x < y); }
-};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct equality_comparable2 : B
-{
-     friend bool operator==(const U& y, const T& x) { return x == y; }
-     friend bool operator!=(const U& y, const T& x) { return !static_cast<bool>(x == y); }
-     friend bool operator!=(const T& y, const U& x) { return !static_cast<bool>(y == x); }
-};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct equality_comparable1 : B
-{
-     friend bool operator!=(const T& x, const T& y) { return !static_cast<bool>(x == y); }
-};
-
-// A macro which produces "name_2left" from "name".
-#define BOOST_OPERATOR2_LEFT(name) name##2##_##left
-
-//  NRVO-friendly implementation (contributed by Daniel Frey) ---------------//
-
-#if defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-// This is the optimal implementation for ISO/ANSI C++,
-// but it requires the compiler to implement the NRVO.
-// If the compiler has no NRVO, this is the best symmetric
-// implementation available.
-
-#define BOOST_BINARY_OPERATOR_COMMUTATIVE( NAME, OP )                         \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >        \
-struct NAME##2 : B                                                            \
-{                                                                             \
-  friend T operator OP( const T& lhs, const U& rhs )                          \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                              \
-  friend T operator OP( const U& lhs, const T& rhs )                          \
-    { T nrv( rhs ); nrv OP##= lhs; return nrv; }                              \
-};                                                                            \
-                                                                              \
-template <class T, class B = ::boost::detail::empty_base<T> >                 \
-struct NAME##1 : B                                                            \
-{                                                                             \
-  friend T operator OP( const T& lhs, const T& rhs )                          \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                              \
-};
-
-#define BOOST_BINARY_OPERATOR_NON_COMMUTATIVE( NAME, OP )               \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >  \
-struct NAME##2 : B                                                      \
-{                                                                       \
-  friend T operator OP( const T& lhs, const U& rhs )                    \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                        \
-};                                                                      \
-                                                                        \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >  \
-struct BOOST_OPERATOR2_LEFT(NAME) : B                                   \
-{                                                                       \
-  friend T operator OP( const U& lhs, const T& rhs )                    \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                        \
-};                                                                      \
-                                                                        \
-template <class T, class B = ::boost::detail::empty_base<T> >           \
-struct NAME##1 : B                                                      \
-{                                                                       \
-  friend T operator OP( const T& lhs, const T& rhs )                    \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                        \
-};
-
-#else // defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-// For compilers without NRVO the following code is optimal, but not
-// symmetric!  Note that the implementation of
-// BOOST_OPERATOR2_LEFT(NAME) only looks cool, but doesn't provide
-// optimization opportunities to the compiler :)
-
-#define BOOST_BINARY_OPERATOR_COMMUTATIVE( NAME, OP )                   \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >  \
-struct NAME##2 : B                                                      \
-{                                                                       \
-  friend T operator OP( T lhs, const U& rhs ) { return lhs OP##= rhs; } \
-  friend T operator OP( const U& lhs, T rhs ) { return rhs OP##= lhs; } \
-};                                                                      \
-                                                                        \
-template <class T, class B = ::boost::detail::empty_base<T> >           \
-struct NAME##1 : B                                                      \
-{                                                                       \
-  friend T operator OP( T lhs, const T& rhs ) { return lhs OP##= rhs; } \
-};
-
-#define BOOST_BINARY_OPERATOR_NON_COMMUTATIVE( NAME, OP )               \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >  \
-struct NAME##2 : B                                                      \
-{                                                                       \
-  friend T operator OP( T lhs, const U& rhs ) { return lhs OP##= rhs; } \
-};                                                                      \
-                                                                        \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >  \
-struct BOOST_OPERATOR2_LEFT(NAME) : B                                   \
-{                                                                       \
-  friend T operator OP( const U& lhs, const T& rhs )                    \
-    { return T( lhs ) OP##= rhs; }                                      \
-};                                                                      \
-                                                                        \
-template <class T, class B = ::boost::detail::empty_base<T> >           \
-struct NAME##1 : B                                                      \
-{                                                                       \
-  friend T operator OP( T lhs, const T& rhs ) { return lhs OP##= rhs; } \
-};
-
-#endif // defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-BOOST_BINARY_OPERATOR_COMMUTATIVE( multipliable, * )
-BOOST_BINARY_OPERATOR_COMMUTATIVE( addable, + )
-BOOST_BINARY_OPERATOR_NON_COMMUTATIVE( subtractable, - )
-BOOST_BINARY_OPERATOR_NON_COMMUTATIVE( dividable, / )
-BOOST_BINARY_OPERATOR_NON_COMMUTATIVE( modable, % )
-BOOST_BINARY_OPERATOR_COMMUTATIVE( xorable, ^ )
-BOOST_BINARY_OPERATOR_COMMUTATIVE( andable, & )
-BOOST_BINARY_OPERATOR_COMMUTATIVE( orable, | )
-
-#undef BOOST_BINARY_OPERATOR_COMMUTATIVE
-#undef BOOST_BINARY_OPERATOR_NON_COMMUTATIVE
-#undef BOOST_OPERATOR2_LEFT
-
-//  incrementable and decrementable contributed by Jeremy Siek
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct incrementable : B
-{
-  friend T operator++(T& x, int)
-  {
-    incrementable_type nrv(x);
-    ++x;
-    return nrv;
-  }
-private: // The use of this typedef works around a Borland bug
-  typedef T incrementable_type;
-};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct decrementable : B
-{
-  friend T operator--(T& x, int)
-  {
-    decrementable_type nrv(x);
-    --x;
-    return nrv;
-  }
-private: // The use of this typedef works around a Borland bug
-  typedef T decrementable_type;
-};
-
-//  Iterator operator classes (contributed by Jeremy Siek) ------------------//
-
-template <class T, class P, class B = ::boost::detail::empty_base<T> >
-struct dereferenceable : B
-{
-  P operator->() const
-  { 
-    return &*static_cast<const T&>(*this); 
-  }
-};
-
-template <class T, class I, class R, class B = ::boost::detail::empty_base<T> >
-struct indexable : B
-{
-  R operator[](I n) const
-  {
-    return *(static_cast<const T&>(*this) + n);
-  }
-};
-
-//  More operator classes (contributed by Daryle Walker) --------------------//
-//  (NRVO-friendly implementation contributed by Daniel Frey) ---------------//
-
-#if defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-#define BOOST_BINARY_OPERATOR( NAME, OP )                                     \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >        \
-struct NAME##2 : B                                                            \
-{                                                                             \
-  friend T operator OP( const T& lhs, const U& rhs )                          \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                              \
-};                                                                            \
-                                                                              \
-template <class T, class B = ::boost::detail::empty_base<T> >                 \
-struct NAME##1 : B                                                            \
-{                                                                             \
-  friend T operator OP( const T& lhs, const T& rhs )                          \
-    { T nrv( lhs ); nrv OP##= rhs; return nrv; }                              \
-};
-
-#else // defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-#define BOOST_BINARY_OPERATOR( NAME, OP )                                     \
-template <class T, class U, class B = ::boost::detail::empty_base<T> >        \
-struct NAME##2 : B                                                            \
-{                                                                             \
-  friend T operator OP( T lhs, const U& rhs ) { return lhs OP##= rhs; }       \
-};                                                                            \
-                                                                              \
-template <class T, class B = ::boost::detail::empty_base<T> >                 \
-struct NAME##1 : B                                                            \
-{                                                                             \
-  friend T operator OP( T lhs, const T& rhs ) { return lhs OP##= rhs; }       \
-};
-
-#endif // defined(BOOST_HAS_NRVO) || defined(BOOST_FORCE_SYMMETRIC_OPERATORS)
-
-BOOST_BINARY_OPERATOR( left_shiftable, << )
-BOOST_BINARY_OPERATOR( right_shiftable, >> )
-
-#undef BOOST_BINARY_OPERATOR
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct equivalent2 : B
-{
-  friend bool operator==(const T& x, const U& y)
-  {
-    return !static_cast<bool>(x < y) && !static_cast<bool>(x > y);
-  }
-};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct equivalent1 : B
-{
-  friend bool operator==(const T&x, const T&y)
-  {
-    return !static_cast<bool>(x < y) && !static_cast<bool>(y < x);
-  }
-};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct partially_ordered2 : B
-{
-  friend bool operator<=(const T& x, const U& y)
-    { return static_cast<bool>(x < y) || static_cast<bool>(x == y); }
-  friend bool operator>=(const T& x, const U& y)
-    { return static_cast<bool>(x > y) || static_cast<bool>(x == y); }
-  friend bool operator>(const U& x, const T& y)
-    { return y < x; }
-  friend bool operator<(const U& x, const T& y)
-    { return y > x; }
-  friend bool operator<=(const U& x, const T& y)
-    { return static_cast<bool>(y > x) || static_cast<bool>(y == x); }
-  friend bool operator>=(const U& x, const T& y)
-    { return static_cast<bool>(y < x) || static_cast<bool>(y == x); }
-};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct partially_ordered1 : B
-{
-  friend bool operator>(const T& x, const T& y)
-    { return y < x; }
-  friend bool operator<=(const T& x, const T& y)
-    { return static_cast<bool>(x < y) || static_cast<bool>(x == y); }
-  friend bool operator>=(const T& x, const T& y)
-    { return static_cast<bool>(y < x) || static_cast<bool>(x == y); }
-};
-
-//  Combined operator classes (contributed by Daryle Walker) ----------------//
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct totally_ordered2
-    : less_than_comparable2<T, U
-    , equality_comparable2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct totally_ordered1
-    : less_than_comparable1<T
-    , equality_comparable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct additive2
-    : addable2<T, U
-    , subtractable2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct additive1
-    : addable1<T
-    , subtractable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct multiplicative2
-    : multipliable2<T, U
-    , dividable2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct multiplicative1
-    : multipliable1<T
-    , dividable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct integer_multiplicative2
-    : multiplicative2<T, U
-    , modable2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct integer_multiplicative1
-    : multiplicative1<T
-    , modable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct arithmetic2
-    : additive2<T, U
-    , multiplicative2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct arithmetic1
-    : additive1<T
-    , multiplicative1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct integer_arithmetic2
-    : additive2<T, U
-    , integer_multiplicative2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct integer_arithmetic1
-    : additive1<T
-    , integer_multiplicative1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct bitwise2
-    : xorable2<T, U
-    , andable2<T, U
-    , orable2<T, U, B
-      > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct bitwise1
-    : xorable1<T
-    , andable1<T
-    , orable1<T, B
-      > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct unit_steppable
-    : incrementable<T
-    , decrementable<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct shiftable2
-    : left_shiftable2<T, U
-    , right_shiftable2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct shiftable1
-    : left_shiftable1<T
-    , right_shiftable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct ring_operators2
-    : additive2<T, U
-    , subtractable2_left<T, U
-    , multipliable2<T, U, B
-      > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct ring_operators1
-    : additive1<T
-    , multipliable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct ordered_ring_operators2
-    : ring_operators2<T, U
-    , totally_ordered2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct ordered_ring_operators1
-    : ring_operators1<T
-    , totally_ordered1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct field_operators2
-    : ring_operators2<T, U
-    , dividable2<T, U
-    , dividable2_left<T, U, B
-      > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct field_operators1
-    : ring_operators1<T
-    , dividable1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct ordered_field_operators2
-    : field_operators2<T, U
-    , totally_ordered2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct ordered_field_operators1
-    : field_operators1<T
-    , totally_ordered1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct euclidian_ring_operators2
-    : ring_operators2<T, U
-    , dividable2<T, U
-    , dividable2_left<T, U
-    , modable2<T, U
-    , modable2_left<T, U, B
-      > > > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct euclidian_ring_operators1
-    : ring_operators1<T
-    , dividable1<T
-    , modable1<T, B
-      > > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct ordered_euclidian_ring_operators2
-    : totally_ordered2<T, U
-    , euclidian_ring_operators2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct ordered_euclidian_ring_operators1
-    : totally_ordered1<T
-    , euclidian_ring_operators1<T, B
-      > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct euclidean_ring_operators2
-    : ring_operators2<T, U
-    , dividable2<T, U
-    , dividable2_left<T, U
-    , modable2<T, U
-    , modable2_left<T, U, B
-      > > > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct euclidean_ring_operators1
-    : ring_operators1<T
-    , dividable1<T
-    , modable1<T, B
-      > > > {};
-
-template <class T, class U, class B = ::boost::detail::empty_base<T> >
-struct ordered_euclidean_ring_operators2
-    : totally_ordered2<T, U
-    , euclidean_ring_operators2<T, U, B
-      > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct ordered_euclidean_ring_operators1
-    : totally_ordered1<T
-    , euclidean_ring_operators1<T, B
-      > > {};
-
-template <class T, class P, class B = ::boost::detail::empty_base<T> >
-struct input_iteratable
-    : equality_comparable1<T
-    , incrementable<T
-    , dereferenceable<T, P, B
-      > > > {};
-
-template <class T, class B = ::boost::detail::empty_base<T> >
-struct output_iteratable
-    : incrementable<T, B
-      > {};
-
-template <class T, class P, class B = ::boost::detail::empty_base<T> >
-struct forward_iteratable
-    : input_iteratable<T, P, B
-      > {};
-
-template <class T, class P, class B = ::boost::detail::empty_base<T> >
-struct bidirectional_iteratable
-    : forward_iteratable<T, P
-    , decrementable<T, B
-      > > {};
-
-//  To avoid repeated derivation from equality_comparable,
-//  which is an indirect base class of bidirectional_iterable,
-//  random_access_iteratable must not be derived from totally_ordered1
-//  but from less_than_comparable1 only. (Helmut Zeisel, 02-Dec-2001)
-template <class T, class P, class D, class R, class B = ::boost::detail::empty_base<T> >
-struct random_access_iteratable
-    : bidirectional_iteratable<T, P
-    , less_than_comparable1<T
-    , additive2<T, D
-    , indexable<T, D, R, B
-      > > > > {};
-
-#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
-} // namespace boost
-#endif // BOOST_NO_OPERATORS_IN_NAMESPACE
-
-
-// BOOST_IMPORT_TEMPLATE1 .. BOOST_IMPORT_TEMPLATE4 -
-//
-// When BOOST_NO_OPERATORS_IN_NAMESPACE is defined we need a way to import an
-// operator template into the boost namespace. BOOST_IMPORT_TEMPLATE1 is used
-// for one-argument forms of operator templates; BOOST_IMPORT_TEMPLATE2 for
-// two-argument forms. Note that these macros expect to be invoked from within
-// boost.
-
-#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
-
-  // The template is already in boost so we have nothing to do.
-# define BOOST_IMPORT_TEMPLATE4(template_name)
-# define BOOST_IMPORT_TEMPLATE3(template_name)
-# define BOOST_IMPORT_TEMPLATE2(template_name)
-# define BOOST_IMPORT_TEMPLATE1(template_name)
-
-#else // BOOST_NO_OPERATORS_IN_NAMESPACE
-
-#  ifndef BOOST_NO_USING_TEMPLATE
-
-     // Bring the names in with a using-declaration
-     // to avoid stressing the compiler.
-#    define BOOST_IMPORT_TEMPLATE4(template_name) using ::template_name;
-#    define BOOST_IMPORT_TEMPLATE3(template_name) using ::template_name;
-#    define BOOST_IMPORT_TEMPLATE2(template_name) using ::template_name;
-#    define BOOST_IMPORT_TEMPLATE1(template_name) using ::template_name;
-
-#  else
-
-     // Otherwise, because a Borland C++ 5.5 bug prevents a using declaration
-     // from working, we are forced to use inheritance for that compiler.
-#    define BOOST_IMPORT_TEMPLATE4(template_name)                                             \
-     template <class T, class U, class V, class W, class B = ::boost::detail::empty_base<T> > \
-     struct template_name : ::template_name<T, U, V, W, B> {};
-
-#    define BOOST_IMPORT_TEMPLATE3(template_name)                                    \
-     template <class T, class U, class V, class B = ::boost::detail::empty_base<T> > \
-     struct template_name : ::template_name<T, U, V, B> {};
-
-#    define BOOST_IMPORT_TEMPLATE2(template_name)                           \
-     template <class T, class U, class B = ::boost::detail::empty_base<T> > \
-     struct template_name : ::template_name<T, U, B> {};
-
-#    define BOOST_IMPORT_TEMPLATE1(template_name)                  \
-     template <class T, class B = ::boost::detail::empty_base<T> > \
-     struct template_name : ::template_name<T, B> {};
-
-#  endif // BOOST_NO_USING_TEMPLATE
-
-#endif // BOOST_NO_OPERATORS_IN_NAMESPACE
-
-//
-// Here's where we put it all together, defining the xxxx forms of the templates
-// in namespace boost. We also define specializations of is_chained_base<> for
-// the xxxx, xxxx1, and xxxx2 templates, importing them into boost:: as
-// necessary.
-//
-
-// is_chained_base<> - a traits class used to distinguish whether an operator
-// template argument is being used for base class chaining, or is specifying a
-// 2nd argument type.
-
-namespace boost {
-// A type parameter is used instead of a plain bool because Borland's compiler
-// didn't cope well with the more obvious non-type template parameter.
-namespace detail {
-  struct true_t {};
-  struct false_t {};
-} // namespace detail
-
-// Unspecialized version assumes that most types are not being used for base
-// class chaining. We specialize for the operator templates defined in this
-// library.
-template<class T> struct is_chained_base {
-  typedef ::boost::detail::false_t value;
-};
-
-} // namespace boost
-
-// Import a 4-type-argument operator template into boost (if necessary) and
-// provide a specialization of 'is_chained_base<>' for it.
-# define BOOST_OPERATOR_TEMPLATE4(template_name4)                     \
-  BOOST_IMPORT_TEMPLATE4(template_name4)                              \
-  template<class T, class U, class V, class W, class B>               \
-  struct is_chained_base< ::boost::template_name4<T, U, V, W, B> > {  \
-    typedef ::boost::detail::true_t value;                            \
-  };
-
-// Import a 3-type-argument operator template into boost (if necessary) and
-// provide a specialization of 'is_chained_base<>' for it.
-# define BOOST_OPERATOR_TEMPLATE3(template_name3)                     \
-  BOOST_IMPORT_TEMPLATE3(template_name3)                              \
-  template<class T, class U, class V, class B>                        \
-  struct is_chained_base< ::boost::template_name3<T, U, V, B> > {     \
-    typedef ::boost::detail::true_t value;                            \
-  };
-
-// Import a 2-type-argument operator template into boost (if necessary) and
-// provide a specialization of 'is_chained_base<>' for it.
-# define BOOST_OPERATOR_TEMPLATE2(template_name2)                  \
-  BOOST_IMPORT_TEMPLATE2(template_name2)                           \
-  template<class T, class U, class B>                              \
-  struct is_chained_base< ::boost::template_name2<T, U, B> > {     \
-    typedef ::boost::detail::true_t value;                         \
-  };
-
-// Import a 1-type-argument operator template into boost (if necessary) and
-// provide a specialization of 'is_chained_base<>' for it.
-# define BOOST_OPERATOR_TEMPLATE1(template_name1)                  \
-  BOOST_IMPORT_TEMPLATE1(template_name1)                           \
-  template<class T, class B>                                       \
-  struct is_chained_base< ::boost::template_name1<T, B> > {        \
-    typedef ::boost::detail::true_t value;                         \
-  };
-
-// BOOST_OPERATOR_TEMPLATE(template_name) defines template_name<> such that it
-// can be used for specifying both 1-argument and 2-argument forms. Requires the
-// existence of two previously defined class templates named '<template_name>1'
-// and '<template_name>2' which must implement the corresponding 1- and 2-
-// argument forms.
-//
-// The template type parameter O == is_chained_base<U>::value is used to
-// distinguish whether the 2nd argument to <template_name> is being used for
-// base class chaining from another boost operator template or is describing a
-// 2nd operand type. O == true_t only when U is actually an another operator
-// template from the library. Partial specialization is used to select an
-// implementation in terms of either '<template_name>1' or '<template_name>2'.
-//
-
-# define BOOST_OPERATOR_TEMPLATE(template_name)                    \
-template <class T                                                  \
-         ,class U = T                                              \
-         ,class B = ::boost::detail::empty_base<T>                 \
-         ,class O = typename is_chained_base<U>::value             \
-         >                                                         \
-struct template_name : template_name##2<T, U, B> {};               \
-                                                                   \
-template<class T, class U, class B>                                \
-struct template_name<T, U, B, ::boost::detail::true_t>             \
-  : template_name##1<T, U> {};                                     \
-                                                                   \
-template <class T, class B>                                        \
-struct template_name<T, T, B, ::boost::detail::false_t>            \
-  : template_name##1<T, B> {};                                     \
-                                                                   \
-template<class T, class U, class B, class O>                       \
-struct is_chained_base< ::boost::template_name<T, U, B, O> > {     \
-  typedef ::boost::detail::true_t value;                           \
-};                                                                 \
-                                                                   \
-BOOST_OPERATOR_TEMPLATE2(template_name##2)                         \
-BOOST_OPERATOR_TEMPLATE1(template_name##1)
-
-
-
-namespace boost {
-    
-BOOST_OPERATOR_TEMPLATE(less_than_comparable)
-BOOST_OPERATOR_TEMPLATE(equality_comparable)
-BOOST_OPERATOR_TEMPLATE(multipliable)
-BOOST_OPERATOR_TEMPLATE(addable)
-BOOST_OPERATOR_TEMPLATE(subtractable)
-BOOST_OPERATOR_TEMPLATE2(subtractable2_left)
-BOOST_OPERATOR_TEMPLATE(dividable)
-BOOST_OPERATOR_TEMPLATE2(dividable2_left)
-BOOST_OPERATOR_TEMPLATE(modable)
-BOOST_OPERATOR_TEMPLATE2(modable2_left)
-BOOST_OPERATOR_TEMPLATE(xorable)
-BOOST_OPERATOR_TEMPLATE(andable)
-BOOST_OPERATOR_TEMPLATE(orable)
-
-BOOST_OPERATOR_TEMPLATE1(incrementable)
-BOOST_OPERATOR_TEMPLATE1(decrementable)
-
-BOOST_OPERATOR_TEMPLATE2(dereferenceable)
-BOOST_OPERATOR_TEMPLATE3(indexable)
-
-BOOST_OPERATOR_TEMPLATE(left_shiftable)
-BOOST_OPERATOR_TEMPLATE(right_shiftable)
-BOOST_OPERATOR_TEMPLATE(equivalent)
-BOOST_OPERATOR_TEMPLATE(partially_ordered)
-
-BOOST_OPERATOR_TEMPLATE(totally_ordered)
-BOOST_OPERATOR_TEMPLATE(additive)
-BOOST_OPERATOR_TEMPLATE(multiplicative)
-BOOST_OPERATOR_TEMPLATE(integer_multiplicative)
-BOOST_OPERATOR_TEMPLATE(arithmetic)
-BOOST_OPERATOR_TEMPLATE(integer_arithmetic)
-BOOST_OPERATOR_TEMPLATE(bitwise)
-BOOST_OPERATOR_TEMPLATE1(unit_steppable)
-BOOST_OPERATOR_TEMPLATE(shiftable)
-BOOST_OPERATOR_TEMPLATE(ring_operators)
-BOOST_OPERATOR_TEMPLATE(ordered_ring_operators)
-BOOST_OPERATOR_TEMPLATE(field_operators)
-BOOST_OPERATOR_TEMPLATE(ordered_field_operators)
-BOOST_OPERATOR_TEMPLATE(euclidian_ring_operators)
-BOOST_OPERATOR_TEMPLATE(ordered_euclidian_ring_operators)
-BOOST_OPERATOR_TEMPLATE(euclidean_ring_operators)
-BOOST_OPERATOR_TEMPLATE(ordered_euclidean_ring_operators)
-BOOST_OPERATOR_TEMPLATE2(input_iteratable)
-BOOST_OPERATOR_TEMPLATE1(output_iteratable)
-BOOST_OPERATOR_TEMPLATE2(forward_iteratable)
-BOOST_OPERATOR_TEMPLATE2(bidirectional_iteratable)
-BOOST_OPERATOR_TEMPLATE4(random_access_iteratable)
-
-#undef BOOST_OPERATOR_TEMPLATE
-#undef BOOST_OPERATOR_TEMPLATE4
-#undef BOOST_OPERATOR_TEMPLATE3
-#undef BOOST_OPERATOR_TEMPLATE2
-#undef BOOST_OPERATOR_TEMPLATE1
-#undef BOOST_IMPORT_TEMPLATE1
-#undef BOOST_IMPORT_TEMPLATE2
-#undef BOOST_IMPORT_TEMPLATE3
-#undef BOOST_IMPORT_TEMPLATE4
-
-// The following 'operators' classes can only be used portably if the derived class
-// declares ALL of the required member operators.
-template <class T, class U>
-struct operators2
-    : totally_ordered2<T,U
-    , integer_arithmetic2<T,U
-    , bitwise2<T,U
-      > > > {};
-
-template <class T, class U = T>
-struct operators : operators2<T, U> {};
-
-template <class T> struct operators<T, T>
-    : totally_ordered<T
-    , integer_arithmetic<T
-    , bitwise<T
-    , unit_steppable<T
-      > > > > {};
-
-//  Iterator helper classes (contributed by Jeremy Siek) -------------------//
-//  (Input and output iterator helpers contributed by Daryle Walker) -------//
-//  (Changed to use combined operator classes by Daryle Walker) ------------//
-template <class T,
-          class V,
-          class D = std::ptrdiff_t,
-          class P = V const *,
-          class R = V const &>
-struct input_iterator_helper
-  : input_iteratable<T, P
-  , std::iterator<std::input_iterator_tag, V, D, P, R
-    > > {};
-
-template<class T>
-struct output_iterator_helper
-  : output_iteratable<T
-  , std::iterator<std::output_iterator_tag, void, void, void, void
-  > >
-{
-  T& operator*()  { return static_cast<T&>(*this); }
-  T& operator++() { return static_cast<T&>(*this); }
-};
-
-template <class T,
-          class V,
-          class D = std::ptrdiff_t,
-          class P = V*,
-          class R = V&>
-struct forward_iterator_helper
-  : forward_iteratable<T, P
-  , std::iterator<std::forward_iterator_tag, V, D, P, R
-    > > {};
-
-template <class T,
-          class V,
-          class D = std::ptrdiff_t,
-          class P = V*,
-          class R = V&>
-struct bidirectional_iterator_helper
-  : bidirectional_iteratable<T, P
-  , std::iterator<std::bidirectional_iterator_tag, V, D, P, R
-    > > {};
-
-template <class T,
-          class V, 
-          class D = std::ptrdiff_t,
-          class P = V*,
-          class R = V&>
-struct random_access_iterator_helper
-  : random_access_iteratable<T, P, D, R
-  , std::iterator<std::random_access_iterator_tag, V, D, P, R
-    > >
-{
-  friend D requires_difference_operator(const T& x, const T& y) {
-    return x - y;
-  }
-}; // random_access_iterator_helper
-
-} // namespace boost
-
-#if defined(__sgi) && !defined(__GNUC__)
-#pragma reset woff 1234
-#endif
-
-#endif // BOOST_OPERATORS_V1_HPP

include/boost/ref.hpp

@@ -0,0 +1,189 @@
+#ifndef BOOST_REF_HPP_INCLUDED
+#define BOOST_REF_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/utility/addressof.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/detail/workaround.hpp>
+
+//
+//  ref.hpp - ref/cref, useful helper functions
+//
+//  Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
+//  Copyright (C) 2001, 2002 Peter Dimov
+//  Copyright (C) 2002 David Abrahams
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+//  See http://www.boost.org/libs/bind/ref.html for documentation.
+//
+
+namespace boost
+{
+
+template<class T> class reference_wrapper
+{ 
+public:
+    typedef T type;
+
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1300 )
+
+    explicit reference_wrapper(T& t): t_(&t) {}
+
+#else
+
+    explicit reference_wrapper(T& t): t_(boost::addressof(t)) {}
+
+#endif
+
+    operator T& () const { return *t_; }
+
+    T& get() const { return *t_; }
+
+    T* get_pointer() const { return t_; }
+
+private:
+
+    T* t_;
+};
+
+# if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) )
+#  define BOOST_REF_CONST
+# else
+#  define BOOST_REF_CONST const
+# endif
+
+template<class T> inline reference_wrapper<T> BOOST_REF_CONST ref(T & t)
+{ 
+    return reference_wrapper<T>(t);
+}
+
+template<class T> inline reference_wrapper<T const> BOOST_REF_CONST cref(T const & t)
+{
+    return reference_wrapper<T const>(t);
+}
+
+# undef BOOST_REF_CONST
+
+# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+template<typename T>
+class is_reference_wrapper
+    : public mpl::false_
+{
+};
+
+template<typename T>
+class unwrap_reference
+{
+ public:
+    typedef T type;
+};
+
+#  define AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(X) \
+template<typename T> \
+class is_reference_wrapper< X > \
+    : public mpl::true_ \
+{ \
+}; \
+\
+template<typename T> \
+class unwrap_reference< X > \
+{ \
+ public: \
+    typedef T type; \
+}; \
+/**/
+
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T>)
+#if !defined(BOOST_NO_CV_SPECIALIZATIONS)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> volatile)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const volatile)
+#endif
+
+#  undef AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF
+
+# else // no partial specialization
+
+} // namespace boost
+
+#include <boost/type.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+  typedef char (&yes_reference_wrapper_t)[1];
+  typedef char (&no_reference_wrapper_t)[2];
+      
+  no_reference_wrapper_t is_reference_wrapper_test(...);
+
+  template<typename T>
+  yes_reference_wrapper_t is_reference_wrapper_test(type< reference_wrapper<T> >);
+
+  template<bool wrapped>
+  struct reference_unwrapper
+  {
+      template <class T>
+      struct apply
+      {
+          typedef T type;
+      };
+  };
+
+  template<>
+  struct reference_unwrapper<true>
+  {
+      template <class T>
+      struct apply
+      {
+          typedef typename T::type type;
+      };
+  };
+}
+
+template<typename T>
+class is_reference_wrapper
+{
+ public:
+    BOOST_STATIC_CONSTANT(
+        bool, value = (
+             sizeof(detail::is_reference_wrapper_test(type<T>()))
+            == sizeof(detail::yes_reference_wrapper_t)));
+    
+    typedef ::boost::mpl::bool_<value> type;
+};
+
+template <typename T>
+class unwrap_reference
+    : public detail::reference_unwrapper<
+        is_reference_wrapper<T>::value
+      >::template apply<T>
+{};
+
+# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+template <class T> inline typename unwrap_reference<T>::type&
+unwrap_ref(T& t)
+{
+    return t;
+}
+
+template<class T> inline T* get_pointer( reference_wrapper<T> const & r )
+{
+    return r.get_pointer();
+}
+
+} // namespace boost
+
+#endif // #ifndef BOOST_REF_HPP_INCLUDED

include/boost/swap.hpp

@@ -0,0 +1,12 @@
+// Copyright (C) 2007 Joseph Gauterin
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_SWAP_HPP
+#define BOOST_SWAP_HPP
+
+#include "boost/utility/swap.hpp"
+
+#endif

include/boost/utility.hpp

@@ -9,16 +9,13 @@
 #ifndef BOOST_UTILITY_HPP
 #define BOOST_UTILITY_HPP
 
-// Use of this header is discouraged and it will be deprecated.
-// Please include one or more of the headers below instead.
-
+#include <boost/utility/addressof.hpp>
 #include <boost/utility/base_from_member.hpp>
 #include <boost/utility/binary.hpp>
+#include <boost/utility/enable_if.hpp>
 #include <boost/utility/identity_type.hpp>
-
-#include <boost/core/addressof.hpp>
-#include <boost/core/enable_if.hpp>
-#include <boost/core/checked_delete.hpp>
-#include <boost/core/noncopyable.hpp>
+#include <boost/checked_delete.hpp>
+#include <boost/next_prior.hpp>
+#include <boost/noncopyable.hpp>
 
 #endif  // BOOST_UTILITY_HPP

include/boost/utility/addressof.hpp

@@ -0,0 +1,102 @@
+// Copyright (C) 2002 Brad King (brad.king@kitware.com)
+//                    Douglas Gregor (gregod@cs.rpi.edu)
+//
+// Copyright (C) 2002, 2008 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// For more information, see http://www.boost.org
+
+#ifndef BOOST_UTILITY_ADDRESSOF_HPP
+# define BOOST_UTILITY_ADDRESSOF_HPP
+
+# include <boost/config.hpp>
+# include <boost/detail/workaround.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+
+template<class T> struct addr_impl_ref
+{
+    T & v_;
+
+    inline addr_impl_ref( T & v ): v_( v ) {}
+    inline operator T& () const { return v_; }
+
+private:
+    addr_impl_ref & operator=(const addr_impl_ref &);
+};
+
+template<class T> struct addressof_impl
+{
+    static inline T * f( T & v, long )
+    {
+        return reinterpret_cast<T*>(
+            &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
+    }
+
+    static inline T * f( T * v, int )
+    {
+        return v;
+    }
+};
+
+} // namespace detail
+
+template<class T> T * addressof( T & v )
+{
+#if (defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT( 0x610 ) ) ) || defined( __SUNPRO_CC )
+
+    return boost::detail::addressof_impl<T>::f( v, 0 );
+
+#else
+
+    return boost::detail::addressof_impl<T>::f( boost::detail::addr_impl_ref<T>( v ), 0 );
+
+#endif
+}
+
+#if defined( __SUNPRO_CC ) && BOOST_WORKAROUND( __SUNPRO_CC, BOOST_TESTED_AT( 0x590 ) )
+
+namespace detail
+{
+
+template<class T> struct addressof_addp
+{
+    typedef T * type;
+};
+
+} // namespace detail
+
+template< class T, std::size_t N >
+typename detail::addressof_addp< T[N] >::type addressof( T (&t)[N] )
+{
+    return &t;
+}
+
+#endif
+
+// Borland doesn't like casting an array reference to a char reference
+// but these overloads work around the problem.
+#if defined( __BORLANDC__ ) && BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+template<typename T,std::size_t N>
+T (*addressof(T (&t)[N]))[N]
+{
+   return reinterpret_cast<T(*)[N]>(&t);
+}
+
+template<typename T,std::size_t N>
+const T (*addressof(const T (&t)[N]))[N]
+{
+   return reinterpret_cast<const T(*)[N]>(&t);
+}
+#endif
+
+} // namespace boost
+
+#endif // BOOST_UTILITY_ADDRESSOF_HPP

include/boost/utility/base_from_member.hpp

@@ -47,14 +47,13 @@
 //         {}
 // This macro should only persist within this file.
 
-#ifndef BOOST_UTILITY_DOCS
-#define BOOST_PRIVATE_CTR_DEF( z, n, data )                   \
-    template < BOOST_PP_ENUM_PARAMS(n, typename T) >          \
-    base_from_member( BOOST_PP_ENUM_BINARY_PARAMS(n, T, x) )  \
-        : member( BOOST_PP_ENUM_PARAMS(n, x) )                \
-        {}                                                    \
+#define BOOST_PRIVATE_CTR_DEF( z, n, data )                            \
+    template < BOOST_PP_ENUM_PARAMS(n, typename T) >                   \
+    explicit base_from_member( BOOST_PP_ENUM_BINARY_PARAMS(n, T, x) )  \
+        : member( BOOST_PP_ENUM_PARAMS(n, x) )                         \
+        {}                                                             \
     /**/
-#endif // BOOST_UTILITY_DOCS
+
 
 namespace boost
 {
@@ -143,26 +142,12 @@ protected:
         : member()
         {}
 
-    template < typename T0 > explicit base_from_member( T0 x0 ) : member( x0 ) {}
-    BOOST_PP_REPEAT_FROM_TO( 2, BOOST_PP_INC(BOOST_BASE_FROM_MEMBER_MAX_ARITY),
+    BOOST_PP_REPEAT_FROM_TO( 1, BOOST_PP_INC(BOOST_BASE_FROM_MEMBER_MAX_ARITY),
      BOOST_PRIVATE_CTR_DEF, _ )
 #endif
 
 };  // boost::base_from_member
 
-template < typename MemberType, int UniqueID >
-class base_from_member<MemberType&, UniqueID>
-{
-protected:
-    MemberType& member;
-
-    explicit BOOST_CONSTEXPR base_from_member( MemberType& x )
-        BOOST_NOEXCEPT
-        : member( x )
-        {}
-
-};  // boost::base_from_member
-
 }  // namespace boost
 
 

include/boost/utility/binary.hpp

@@ -68,7 +68,6 @@
   ( (0) BOOST_DETAIL_CREATE_BINARY_LITERAL_OCTAL_SEQUENCE( d, bit_groupings )  \
   ) 
 
-#ifndef BOOST_UTILITY_DOCS
 #define BOOST_DETAIL_CREATE_BINARY_LITERAL_OCTAL_SEQUENCE( d, bit_groupings )  \
   BOOST_PP_SEQ_TRANSFORM                                                       \
   ( BOOST_DETAIL_TRIPLE_TO_OCTAL_OPERATION                                     \
@@ -705,5 +704,5 @@
 #define BOOST_DETAIL_BINARY_LITERAL_ELEMENT_11111101 (1)(1)(1)(1)(1)(1)(0)(1), 
 #define BOOST_DETAIL_BINARY_LITERAL_ELEMENT_11111110 (1)(1)(1)(1)(1)(1)(1)(0), 
 #define BOOST_DETAIL_BINARY_LITERAL_ELEMENT_11111111 (1)(1)(1)(1)(1)(1)(1)(1), 
-#endif // BOOST_UTILITY_DOCS
+
 #endif

include/boost/utility/compare_pointees.hpp

@@ -33,12 +33,8 @@ bool equal_pointees ( OptionalPointee const& x, OptionalPointee const& y )
 }
 
 template<class OptionalPointee>
-struct equal_pointees_t
+struct equal_pointees_t : std::binary_function<OptionalPointee,OptionalPointee,bool>
 {
-  typedef bool result_type;
-  typedef OptionalPointee first_argument_type;
-  typedef OptionalPointee second_argument_type;
-
   bool operator() ( OptionalPointee const& x, OptionalPointee const& y ) const
     { return equal_pointees(x,y) ; }
 } ;
@@ -60,12 +56,8 @@ bool less_pointees ( OptionalPointee const& x, OptionalPointee const& y )
 }
 
 template<class OptionalPointee>
-struct less_pointees_t
+struct less_pointees_t : std::binary_function<OptionalPointee,OptionalPointee,bool>
 {
-  typedef bool result_type;
-  typedef OptionalPointee first_argument_type;
-  typedef OptionalPointee second_argument_type;
-
   bool operator() ( OptionalPointee const& x, OptionalPointee const& y ) const
     { return less_pointees(x,y) ; }
 } ;

include/boost/utility/declval.hpp

@@ -0,0 +1,44 @@
+//  declval.hpp  -------------------------------------------------------------//
+
+//  Copyright 2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+#ifndef BOOST_UTILITY_DECLVAL_HPP
+#define BOOST_UTILITY_DECLVAL_HPP
+
+#include <boost/config.hpp>
+
+//----------------------------------------------------------------------------//
+
+#include <boost/type_traits/add_rvalue_reference.hpp>
+
+//----------------------------------------------------------------------------//
+//                                                                            //
+//                           C++03 implementation of                          //
+//                   20.2.4 Function template declval [declval]               //
+//                          Written by Vicente J. Botet Escriba               //
+//                                                                            //
+// 1 The library provides the function template declval to simplify the
+// definition of expressions which occur as unevaluated operands.
+// 2 Remarks: If this function is used, the program is ill-formed.
+// 3 Remarks: The template parameter T of declval may be an incomplete type.
+// [ Example:
+//
+// template <class To, class From>
+// decltype(static_cast<To>(declval<From>())) convert(From&&);
+//
+// declares a function template convert which only participates in overloading
+// if the type From can be explicitly converted to type To. For another example
+// see class template common_type (20.9.7.6). -end example ]
+//----------------------------------------------------------------------------//
+
+namespace boost {
+
+    template <typename T>
+    typename add_rvalue_reference<T>::type declval() BOOST_NOEXCEPT; // as unevaluated operand
+
+}  // namespace boost
+
+#endif  // BOOST_UTILITY_DECLVAL_HPP

include/boost/utility/detail/minstd_rand.hpp

@@ -1,58 +0,0 @@
-#ifndef BOOST_UTILITY_DETAIL_MINSTD_RAND_HPP_INCLUDED
-#define BOOST_UTILITY_DETAIL_MINSTD_RAND_HPP_INCLUDED
-
-// Copyright 2017 Peter Dimov
-//
-// Distributed under the Boost Software License, Version 1.0.
-//
-// See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt
-//
-// An implementation of minstd_rand that does not require
-// the Random library
-
-#include <boost/cstdint.hpp>
-
-namespace boost
-{
-namespace detail
-{
-
-class minstd_rand
-{
-private:
-
-    boost::uint_least32_t x_;
-
-    enum { a = 48271, m = 2147483647 };
-
-public:
-
-    minstd_rand(): x_( 1 )
-    {
-    }
-
-    explicit minstd_rand( boost::uint_least32_t x ): x_( x % m )
-    {
-        if( x_ == 0 )
-        {
-            x_ = 1;
-        }
-    }
-
-    boost::uint_least32_t operator()()
-    {
-        boost::uint_least64_t y = x_;
-
-        y = ( a * y ) % m;
-
-        x_ = static_cast<boost::uint_least32_t>( y );
-
-        return x_;
-    }
-};
-
-} // namespace detail
-} // namespace boost
-
-#endif // #ifndef BOOST_UTILITY_DETAIL_MINSTD_RAND_HPP_INCLUDED

include/boost/utility/detail/result_of_iterate.hpp

@@ -22,19 +22,19 @@
 # define BOOST_RESULT_OF_ARGS BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)
 #endif
 
-#if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551))
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of<F(BOOST_RESULT_OF_ARGS)>
-    : conditional<
-        is_pointer<F>::value || is_member_function_pointer<F>::value
+    : mpl::if_<
+          mpl::or_< is_pointer<F>, is_member_function_pointer<F> >
         , boost::detail::tr1_result_of_impl<
             typename remove_cv<F>::type,
             typename remove_cv<F>::type(BOOST_RESULT_OF_ARGS),
-            (boost::detail::result_of_has_result_type<F>::value)>
+            (boost::detail::has_result_type<F>::value)>
         , boost::detail::tr1_result_of_impl<
             F,
             F(BOOST_RESULT_OF_ARGS),
-            (boost::detail::result_of_has_result_type<F>::value)> >::type { };
+            (boost::detail::has_result_type<F>::value)> >::type { };
 #endif
 
 #ifdef BOOST_RESULT_OF_USE_DECLTYPE
@@ -46,7 +46,7 @@ struct result_of<F(BOOST_RESULT_OF_ARGS)>
 #ifdef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct result_of<F(BOOST_RESULT_OF_ARGS)>
-    : conditional<detail::result_of_has_result_type<F>::value || detail::result_of_has_result<F>::value,
+    : mpl::if_<mpl::or_<detail::has_result_type<F>, detail::has_result<F> >,
                tr1_result_of<F(BOOST_RESULT_OF_ARGS)>,
                detail::cpp0x_result_of<F(BOOST_RESULT_OF_ARGS)> >::type { };
 #endif // BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
@@ -57,8 +57,8 @@ namespace detail {
 
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct cpp0x_result_of<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T))>
-    : conditional<
-          is_member_function_pointer<F>::value
+    : mpl::if_<
+          is_member_function_pointer<F>
         , detail::tr1_result_of_impl<
             typename remove_cv<F>::type,
             typename remove_cv<F>::type(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), false
@@ -82,22 +82,25 @@ struct BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<R(BOOST_PP_
 };
 
 template<typename F>
-struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())
-  : BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
-{};
+struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION());
 
 template<typename F>
 struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F *>
   : BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
 {};
 
+template<typename F>
+struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F &>
+  : BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
+{};
+
 template<typename F>
 struct BOOST_PP_CAT(result_of_select_call_wrapper_type_, BOOST_PP_ITERATION())
-  : conditional<
-        is_class<typename remove_reference<F>::type>::value,
+  : mpl::eval_if<
+        is_class<typename remove_reference<F>::type>,
         result_of_wrap_callable_class<F>,
-        type_identity<BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<typename remove_cv<typename remove_reference<F>::type>::type> >
-    >::type
+        mpl::identity<BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<typename remove_cv<F>::type> >
+    >
 {};
 
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(), typename T)>
@@ -108,7 +111,7 @@ struct BOOST_PP_CAT(result_of_is_callable_, BOOST_PP_ITERATION()) {
             (boost::declval<wrapper_t>()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), boost::declval<T, >() BOOST_PP_INTERCEPT)), result_of_weird_type())
         ))
     );
-    typedef integral_constant<bool, value> type;
+    typedef mpl::bool_<value> type;
 };
 
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
@@ -151,7 +154,7 @@ struct cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)),
 
 #else // defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)
 
-#if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551))
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
 template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct result_of<F(BOOST_RESULT_OF_ARGS)>
     : tr1_result_of<F(BOOST_RESULT_OF_ARGS)> { };
@@ -177,7 +180,7 @@ struct tr1_result_of_impl<R (&)(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), F
   typedef R type;
 };
 
-#if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551))
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
 template<typename R, typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (T0::*)
                      (BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_ITERATION(),T)),

include/boost/utility/detail/result_of_variadic.hpp

@@ -1,190 +0,0 @@
-// Boost result_of library
-
-//  Copyright Douglas Gregor 2004. Use, modification and
-//  distribution is subject to the Boost Software License, Version
-//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-
-//  Copyright Daniel Walker, Eric Niebler, Michel Morin 2008-2012.
-//  Use, modification and distribution is subject to the Boost Software
-//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or
-//  copy at http://www.boost.org/LICENSE_1_0.txt)
-
-// For more information, see http://www.boost.org/libs/utility
-
-#ifndef BOOST_RESULT_OF_HPP
-# error Boost result_of - do not include this file!
-#endif
-
-template<typename F, typename... Args>
-struct tr1_result_of<F(Args...)>
-    : conditional<
-        is_pointer<F>::value || is_member_function_pointer<F>::value
-        , boost::detail::tr1_result_of_impl<
-            typename remove_cv<F>::type,
-            typename remove_cv<F>::type(Args...),
-            (boost::detail::result_of_has_result_type<F>::value)>
-        , boost::detail::tr1_result_of_impl<
-            F,
-            F(Args...),
-            (boost::detail::result_of_has_result_type<F>::value)> >::type { };
-
-#ifdef BOOST_RESULT_OF_USE_DECLTYPE
-template<typename F, typename... Args>
-struct result_of<F(Args...)>
-    : detail::cpp0x_result_of<F(Args...)> { };
-#endif // BOOST_RESULT_OF_USE_DECLTYPE
-
-#ifdef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
-template<typename F, typename... Args>
-struct result_of<F(Args...)>
-    : conditional<detail::result_of_has_result_type<F>::value || detail::result_of_has_result<F>::value,
-               tr1_result_of<F(Args...)>,
-               detail::cpp0x_result_of<F(Args...)> >::type { };
-#endif // BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
-
-#if defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)
-
-namespace detail {
-
-template<typename F, typename... Args>
-struct cpp0x_result_of<F(Args...)>
-    : conditional<
-          is_member_function_pointer<F>::value
-        , detail::tr1_result_of_impl<
-            typename remove_cv<F>::type,
-            typename remove_cv<F>::type(Args...), false
-          >
-        , detail::cpp0x_result_of_impl<
-              F(Args...)
-          >
-      >::type
-{};
-
-#ifdef BOOST_NO_SFINAE_EXPR
-
-template<typename F>
-struct result_of_callable_fun_2;
-
-template<typename R, typename... Args>
-struct result_of_callable_fun_2<R(Args...)> {
-    R operator()(Args...) const;
-    typedef result_of_private_type const &(*pfn_t)(...);
-    operator pfn_t() const volatile;
-};
-
-template<typename F>
-struct result_of_callable_fun
-  : result_of_callable_fun_2<F>
-{};
-
-template<typename F>
-struct result_of_callable_fun<F *>
-  : result_of_callable_fun_2<F>
-{};
-
-template<typename F>
-struct result_of_select_call_wrapper_type
-  : conditional<
-        is_class<typename remove_reference<F>::type>::value,
-        result_of_wrap_callable_class<F>,
-        type_identity<result_of_callable_fun<typename remove_cv<typename remove_reference<F>::type>::type> >
-    >::type
-{};
-
-template<typename F, typename... Args>
-struct result_of_is_callable {
-    typedef typename result_of_select_call_wrapper_type<F>::type wrapper_t;
-    static const bool value = (
-        sizeof(result_of_no_type) == sizeof(detail::result_of_is_private_type(
-            (boost::declval<wrapper_t>()(boost::declval<Args>()...), result_of_weird_type())
-        ))
-    );
-    typedef integral_constant<bool, value> type;
-};
-
-template<typename F, typename... Args>
-struct cpp0x_result_of_impl<F(Args...), true>
-    : lazy_enable_if<
-          result_of_is_callable<F, Args...>
-        , cpp0x_result_of_impl<F(Args...), false>
-      >
-{};
-
-template<typename F, typename... Args>
-struct cpp0x_result_of_impl<F(Args...), false>
-{
-  typedef decltype(
-    boost::declval<F>()(
-      boost::declval<Args>()...
-    )
-  ) type;
-};
-
-#else // BOOST_NO_SFINAE_EXPR
-
-template<typename F, typename... Args>
-struct cpp0x_result_of_impl<F(Args...),
-                            typename result_of_always_void<decltype(
-                                boost::declval<F>()(
-                                    boost::declval<Args>()...
-                                )
-                            )>::type> {
-  typedef decltype(
-    boost::declval<F>()(
-      boost::declval<Args>()...
-    )
-  ) type;
-};
-
-#endif // BOOST_NO_SFINAE_EXPR
-
-} // namespace detail
-
-#else // defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)
-
-template<typename F, typename... Args>
-struct result_of<F(Args...)>
-    : tr1_result_of<F(Args...)> { };
-
-#endif // defined(BOOST_RESULT_OF_USE_DECLTYPE)
-
-namespace detail {
-
-template<typename R, typename FArgs, typename... Args>
-struct tr1_result_of_impl<R (*)(Args...), FArgs, false>
-{
-  typedef R type;
-};
-
-template<typename R, typename FArgs, typename... Args>
-struct tr1_result_of_impl<R (&)(Args...), FArgs, false>
-{
-  typedef R type;
-};
-
-template<typename R, typename FArgs, typename C, typename... Args>
-struct tr1_result_of_impl<R (C::*)(Args...), FArgs, false>
-{
-  typedef R type;
-};
-
-template<typename R, typename FArgs, typename C, typename... Args>
-struct tr1_result_of_impl<R (C::*)(Args...) const, FArgs, false>
-{
-  typedef R type;
-};
-
-template<typename R, typename FArgs, typename C, typename... Args>
-struct tr1_result_of_impl<R (C::*)(Args...) volatile, FArgs, false>
-{
-  typedef R type;
-};
-
-template<typename R, typename FArgs, typename C, typename... Args>
-struct tr1_result_of_impl<R (C::*)(Args...) const volatile, FArgs, false>
-{
-  typedef R type;
-};
-
-}

include/boost/utility/empty_deleter.hpp

@@ -0,0 +1,43 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2013.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+/*!
+ * \file   empty_deleter.hpp
+ * \author Andrey Semashev
+ * \date   22.04.2007
+ *
+ * This header contains an \c empty_deleter implementation. This is an empty
+ * function object that receives a pointer and does nothing with it.
+ * Such empty deletion strategy may be convenient, for example, when
+ * constructing <tt>shared_ptr</tt>s that point to some object that should not be
+ * deleted (i.e. a variable on the stack or some global singleton, like <tt>std::cout</tt>).
+ */
+
+#ifndef BOOST_UTILITY_EMPTY_DELETER_HPP_INCLUDED_
+#define BOOST_UTILITY_EMPTY_DELETER_HPP_INCLUDED_
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+//! A function object that does nothing and can be used as an empty deleter for \c shared_ptr
+struct empty_deleter
+{
+    //! Function object result type
+    typedef void result_type;
+    /*!
+     * Does nothing
+     */
+    void operator() (const volatile void*) const BOOST_NOEXCEPT {}
+};
+
+} // namespace boost
+
+#endif // BOOST_UTILITY_EMPTY_DELETER_HPP_INCLUDED_

include/boost/utility/enable_if.hpp

@@ -0,0 +1,119 @@
+// Boost enable_if library
+
+// Copyright 2003 (c) The Trustees of Indiana University.
+
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+
+#ifndef BOOST_UTILITY_ENABLE_IF_HPP
+#define BOOST_UTILITY_ENABLE_IF_HPP
+
+#include "boost/config.hpp"
+
+// Even the definition of enable_if causes problems on some compilers,
+// so it's macroed out for all compilers that do not support SFINAE
+
+#ifndef BOOST_NO_SFINAE
+
+namespace boost
+{
+ 
+  template <bool B, class T = void>
+  struct enable_if_c {
+    typedef T type;
+  };
+
+  template <class T>
+  struct enable_if_c<false, T> {};
+
+  template <class Cond, class T = void> 
+  struct enable_if : public enable_if_c<Cond::value, T> {};
+
+  template <bool B, class T>
+  struct lazy_enable_if_c {
+    typedef typename T::type type;
+  };
+
+  template <class T>
+  struct lazy_enable_if_c<false, T> {};
+
+  template <class Cond, class T> 
+  struct lazy_enable_if : public lazy_enable_if_c<Cond::value, T> {};
+
+
+  template <bool B, class T = void>
+  struct disable_if_c {
+    typedef T type;
+  };
+
+  template <class T>
+  struct disable_if_c<true, T> {};
+
+  template <class Cond, class T = void> 
+  struct disable_if : public disable_if_c<Cond::value, T> {};
+
+  template <bool B, class T>
+  struct lazy_disable_if_c {
+    typedef typename T::type type;
+  };
+
+  template <class T>
+  struct lazy_disable_if_c<true, T> {};
+
+  template <class Cond, class T> 
+  struct lazy_disable_if : public lazy_disable_if_c<Cond::value, T> {};
+
+} // namespace boost
+
+#else
+
+namespace boost {
+
+  namespace detail { typedef void enable_if_default_T; }
+
+  template <typename T>
+  struct enable_if_does_not_work_on_this_compiler;
+
+  template <bool B, class T = detail::enable_if_default_T>
+  struct enable_if_c : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <bool B, class T = detail::enable_if_default_T> 
+  struct disable_if_c : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <bool B, class T = detail::enable_if_default_T> 
+  struct lazy_enable_if_c : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <bool B, class T = detail::enable_if_default_T> 
+  struct lazy_disable_if_c : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <class Cond, class T = detail::enable_if_default_T> 
+  struct enable_if : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <class Cond, class T = detail::enable_if_default_T> 
+  struct disable_if : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <class Cond, class T = detail::enable_if_default_T> 
+  struct lazy_enable_if : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+  template <class Cond, class T = detail::enable_if_default_T> 
+  struct lazy_disable_if : enable_if_does_not_work_on_this_compiler<T>
+  { };
+
+} // namespace boost
+
+#endif // BOOST_NO_SFINAE
+
+#endif

include/boost/utility/explicit_operator_bool.hpp

@@ -0,0 +1,128 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2013.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+/*!
+ * \file   explicit_operator_bool.hpp
+ * \author Andrey Semashev
+ * \date   08.03.2009
+ *
+ * This header defines a compatibility macro that implements an unspecified
+ * \c bool operator idiom, which is superseded with explicit conversion operators in
+ * C++11.
+ */
+
+#ifndef BOOST_UTILITY_EXPLICIT_OPERATOR_BOOL_HPP_INCLUDED_
+#define BOOST_UTILITY_EXPLICIT_OPERATOR_BOOL_HPP_INCLUDED_
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+
+/*!
+ * \brief The macro defines an explicit operator of conversion to \c bool
+ *
+ * The macro should be used inside the definition of a class that has to
+ * support the conversion. The class should also implement <tt>operator!</tt>,
+ * in terms of which the conversion operator will be implemented.
+ */
+#define BOOST_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE explicit operator bool () const\
+    {\
+        return !this->operator! ();\
+    }
+
+/*!
+ * \brief The macro defines a constexpr explicit operator of conversion to \c bool
+ *
+ * The macro should be used inside the definition of a class that has to
+ * support the conversion. The class should also implement <tt>operator!</tt>,
+ * in terms of which the conversion operator will be implemented.
+ */
+#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE BOOST_CONSTEXPR explicit operator bool () const\
+    {\
+        return !this->operator! ();\
+    }
+
+#else // !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+
+#if (defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)) && !defined(BOOST_NO_COMPILER_CONFIG)
+// Sun C++ 5.3 can't handle the safe_bool idiom, so don't use it
+#define BOOST_NO_UNSPECIFIED_BOOL
+#endif // (defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)) && !defined(BOOST_NO_COMPILER_CONFIG)
+
+#if !defined(BOOST_NO_UNSPECIFIED_BOOL)
+
+namespace boost {
+
+namespace detail {
+
+#if !defined(_MSC_VER) && !defined(__IBMCPP__)
+
+    struct unspecified_bool
+    {
+        // NOTE TO THE USER: If you see this in error messages then you tried
+        // to apply an unsupported operator on the object that supports
+        // explicit conversion to bool.
+        struct OPERATORS_NOT_ALLOWED;
+        static void true_value(OPERATORS_NOT_ALLOWED*) {}
+    };
+    typedef void (*unspecified_bool_type)(unspecified_bool::OPERATORS_NOT_ALLOWED*);
+
+#else
+
+    // MSVC and VACPP are too eager to convert pointer to function to void* even though they shouldn't
+    struct unspecified_bool
+    {
+        // NOTE TO THE USER: If you see this in error messages then you tried
+        // to apply an unsupported operator on the object that supports
+        // explicit conversion to bool.
+        struct OPERATORS_NOT_ALLOWED;
+        void true_value(OPERATORS_NOT_ALLOWED*) {}
+    };
+    typedef void (unspecified_bool::*unspecified_bool_type)(unspecified_bool::OPERATORS_NOT_ALLOWED*);
+
+#endif
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE operator boost::detail::unspecified_bool_type () const\
+    {\
+        return (!this->operator! () ? &boost::detail::unspecified_bool::true_value : (boost::detail::unspecified_bool_type)0);\
+    }
+
+#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE BOOST_CONSTEXPR operator boost::detail::unspecified_bool_type () const\
+    {\
+        return (!this->operator! () ? &boost::detail::unspecified_bool::true_value : (boost::detail::unspecified_bool_type)0);\
+    }
+
+#else // !defined(BOOST_NO_UNSPECIFIED_BOOL)
+
+#define BOOST_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE operator bool () const\
+    {\
+        return !this->operator! ();\
+    }
+
+#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
+    BOOST_FORCEINLINE BOOST_CONSTEXPR operator bool () const\
+    {\
+        return !this->operator! ();\
+    }
+
+#endif // !defined(BOOST_NO_UNSPECIFIED_BOOL)
+
+#endif // !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+
+#endif // BOOST_UTILITY_EXPLICIT_OPERATOR_BOOL_HPP_INCLUDED_

include/boost/utility/in_place_factory.hpp

@@ -19,21 +19,15 @@ namespace boost {
 
 class in_place_factory_base {} ;
 
-#ifndef BOOST_UTILITY_DOCS
 #define  BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY)
 #define  BOOST_PP_FILENAME_1 <boost/utility/in_place_factory.hpp>
-#endif // BOOST_UTILITY_DOCS
-
 #include BOOST_PP_ITERATE()
 
 } // namespace boost
 
 #include <boost/utility/detail/in_place_factory_suffix.hpp>
 
-#ifndef BOOST_UTILITY_DOCS
 #define BOOST_UTILITY_INPLACE_FACTORY_04APR2007_HPP
-#endif
-
 #else
 #define N BOOST_PP_ITERATION()
 
@@ -54,13 +48,15 @@ public:
   {}
 
   template<class T>
-  void* apply(void* address) const
+  void* apply(void* address
+      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
   {
     return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) );
   }
 
   template<class T>
-  void* apply(void* address, std::size_t n) const
+  void* apply(void* address, std::size_t n
+      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
   {
     for(char* next = address = this->BOOST_NESTED_TEMPLATE apply<T>(address);
         !! --n;)

include/boost/utility/result_of.hpp

@@ -10,37 +10,31 @@
 #define BOOST_RESULT_OF_HPP
 
 #include <boost/config.hpp>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/iteration/iterate.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/enum_shifted_params.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
 #include <boost/detail/workaround.hpp>
+#include <boost/mpl/has_xxx.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/mpl/or.hpp>
 #include <boost/type_traits/is_class.hpp>
 #include <boost/type_traits/is_pointer.hpp>
 #include <boost/type_traits/is_member_function_pointer.hpp>
 #include <boost/type_traits/remove_cv.hpp>
 #include <boost/type_traits/remove_reference.hpp>
-#include <boost/type_traits/declval.hpp>
-#include <boost/type_traits/conditional.hpp>
-#include <boost/type_traits/type_identity.hpp>
-#include <boost/type_traits/integral_constant.hpp>
-#include <boost/core/enable_if.hpp>
+#include <boost/utility/declval.hpp>
+#include <boost/utility/enable_if.hpp>
 
-#ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES
-#  undef BOOST_RESULT_OF_NO_VARIADIC_TEMPLATES
-#  define BOOST_RESULT_OF_NO_VARIADIC_TEMPLATES
-#endif
-#ifdef BOOST_RESULT_OF_NO_VARIADIC_TEMPLATES
-#  include <boost/preprocessor/cat.hpp>
-#  include <boost/preprocessor/iteration/iterate.hpp>
-#  include <boost/preprocessor/repetition/enum_params.hpp>
-#  include <boost/preprocessor/repetition/enum_trailing_params.hpp>
-#  include <boost/preprocessor/repetition/enum_binary_params.hpp>
-#  include <boost/preprocessor/repetition/enum_shifted_params.hpp>
-#  include <boost/preprocessor/facilities/intercept.hpp>
-#endif
-
-#ifndef BOOST_UTILITY_DOCS
 #ifndef BOOST_RESULT_OF_NUM_ARGS
 #  define BOOST_RESULT_OF_NUM_ARGS 16
 #endif
-#endif // BOOST_UTILITY_DOCS
 
 // Use the decltype-based version of result_of by default if the compiler
 // supports N3276 <http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2011/n3276.pdf>.
@@ -53,7 +47,10 @@
   BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK cannot be defined at the same time.
 #endif
 
-#ifndef BOOST_UTILITY_DOCS
+#if defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK) && defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
+#  error Cannot fallback to decltype if BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE is not defined.
+#endif
+
 #ifndef BOOST_RESULT_OF_USE_TR1
 #  ifndef BOOST_RESULT_OF_USE_DECLTYPE
 #    ifndef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
@@ -65,51 +62,18 @@
 #    endif
 #  endif
 #endif
-#endif // BOOST_UTILITY_DOCS
 
 namespace boost {
 
 template<typename F> struct result_of;
 template<typename F> struct tr1_result_of; // a TR1-style implementation of result_of
 
-#if !defined(BOOST_NO_SFINAE)
+#if !defined(BOOST_NO_SFINAE) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
 namespace detail {
 
-typedef char result_of_yes_type;      // sizeof(result_of_yes_type) == 1
-typedef char (&result_of_no_type)[2]; // sizeof(result_of_no_type)  == 2
+BOOST_MPL_HAS_XXX_TRAIT_DEF(result_type)
 
-template<class T> struct result_of_has_type {};
-
-template<class T> struct result_of_has_result_type_impl
-{
-    template<class U> static result_of_yes_type f( result_of_has_type<typename U::result_type>* );
-    template<class U> static result_of_no_type f( ... );
-
-    typedef boost::integral_constant<bool, sizeof(f<T>(0)) == sizeof(result_of_yes_type)> type;
-};
-
-template<class T> struct result_of_has_result_type: result_of_has_result_type_impl<T>::type
-{
-};
-
-// Work around a nvcc bug by only defining has_result when it's needed.
-#ifdef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
-
-template<template<class> class C> struct result_of_has_template {};
-
-template<class T> struct result_of_has_result_impl
-{
-    template<class U> static result_of_yes_type f( result_of_has_template<U::template result>* );
-    template<class U> static result_of_no_type f( ... );
-
-    typedef boost::integral_constant<bool, sizeof(f<T>(0)) == sizeof(result_of_yes_type)> type;
-};
-
-template<class T> struct result_of_has_result: result_of_has_result_impl<T>::type
-{
-};
-
-#endif
+BOOST_MPL_HAS_XXX_TEMPLATE_DEF(result)
 
 template<typename F, typename FArgs, bool HasResultType> struct tr1_result_of_impl;
 
@@ -119,8 +83,8 @@ template<typename F> struct cpp0x_result_of;
 
 // There doesn't seem to be any other way to turn this off such that the presence of
 // the user-defined operator,() below doesn't cause spurious warning all over the place,
-// so unconditionally and globally turn it off. (https://svn.boost.org/trac10/ticket/7663)
-#ifdef BOOST_MSVC
+// so unconditionally turn it off.
+#if BOOST_MSVC
 #  pragma warning(disable: 4913) // user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used
 #endif
 
@@ -130,23 +94,19 @@ struct result_of_weird_type {
   friend result_of_private_type operator,(result_of_private_type, result_of_weird_type);
 };
 
+typedef char result_of_yes_type;      // sizeof(result_of_yes_type) == 1
+typedef char (&result_of_no_type)[2]; // sizeof(result_of_no_type)  == 2
+
 template<typename T>
 result_of_no_type result_of_is_private_type(T const &);
 result_of_yes_type result_of_is_private_type(result_of_private_type);
 
-#ifdef BOOST_MSVC
-#  pragma warning(push)
-#  pragma warning(disable: 4512) // assignment operator could not be generated.
-#endif
 template<typename C>
 struct result_of_callable_class : C {
     result_of_callable_class();
     typedef result_of_private_type const &(*pfn_t)(...);
     operator pfn_t() const volatile;
 };
-#ifdef BOOST_MSVC
-#  pragma warning(pop)
-#endif
 
 template<typename C>
 struct result_of_wrap_callable_class {
@@ -217,10 +177,10 @@ struct tr1_result_of_impl<F, FArgs, true>
 };
 
 template<typename FArgs>
-struct is_function_with_no_args : false_type {};
+struct is_function_with_no_args : mpl::false_ {};
 
 template<typename F>
-struct is_function_with_no_args<F(void)> : true_type {};
+struct is_function_with_no_args<F(void)> : mpl::true_ {};
 
 template<typename F, typename FArgs>
 struct result_of_nested_result : F::template result<FArgs>
@@ -228,24 +188,15 @@ struct result_of_nested_result : F::template result<FArgs>
 
 template<typename F, typename FArgs>
 struct tr1_result_of_impl<F, FArgs, false>
-  : conditional<is_function_with_no_args<FArgs>::value,
+  : mpl::if_<is_function_with_no_args<FArgs>,
              result_of_void_impl<F>,
              result_of_nested_result<F, FArgs> >::type
 {};
 
 } // end namespace detail
 
-#ifndef BOOST_RESULT_OF_NO_VARIADIC_TEMPLATES
-#  include <boost/utility/detail/result_of_variadic.hpp>
-#else
-#  define BOOST_PP_ITERATION_PARAMS_1 (3,(0,BOOST_RESULT_OF_NUM_ARGS,<boost/utility/detail/result_of_iterate.hpp>))
-#  include BOOST_PP_ITERATE()
-#endif
-
-#if 0
-// inform dependency trackers, as they can't see through macro includes
-#include <boost/utility/detail/result_of_iterate.hpp>
-#endif
+#define BOOST_PP_ITERATION_PARAMS_1 (3,(0,BOOST_RESULT_OF_NUM_ARGS,<boost/utility/detail/result_of_iterate.hpp>))
+#include BOOST_PP_ITERATE()
 
 #else
 #  define BOOST_NO_RESULT_OF 1

include/boost/utility/string_ref.hpp

@@ -1,6 +1,5 @@
 /*
-   Copyright (c) Marshall Clow 2012-2015.
-   Copyright (c) Glen Joseph Fernandes 2019 (glenjofe@gmail.com)
+   Copyright (c) Marshall Clow 2012-2012.
 
    Distributed under the Boost Software License, Version 1.0. (See accompanying
    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -18,7 +17,6 @@
 
 #include <boost/config.hpp>
 #include <boost/detail/workaround.hpp>
-#include <boost/io/ostream_put.hpp>
 #include <boost/utility/string_ref_fwd.hpp>
 #include <boost/throw_exception.hpp>
 
@@ -29,11 +27,6 @@
 #include <string>
 #include <iosfwd>
 
-#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (defined(BOOST_GCC) && ((BOOST_GCC+0) / 100) <= 406)
-// GCC 4.6 cannot handle a defaulted function with noexcept specifier
-#define BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-#endif
-
 namespace boost {
 
     namespace detail {
@@ -64,55 +57,37 @@ namespace boost {
         static BOOST_CONSTEXPR_OR_CONST size_type npos = size_type(-1);
 
         // construct/copy
-        BOOST_CONSTEXPR basic_string_ref () BOOST_NOEXCEPT
+        BOOST_CONSTEXPR basic_string_ref ()
             : ptr_(NULL), len_(0) {}
 
-        // by defaulting these functions, basic_string_ref becomes
-        //  trivially copy/move constructible.
-        BOOST_CONSTEXPR basic_string_ref (const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-            = default;
-#else
+        BOOST_CONSTEXPR basic_string_ref (const basic_string_ref &rhs)
             : ptr_(rhs.ptr_), len_(rhs.len_) {}
-#endif
 
-        basic_string_ref& operator=(const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-            = default;
-#else
-            {
+        basic_string_ref& operator=(const basic_string_ref &rhs) {
             ptr_ = rhs.ptr_;
             len_ = rhs.len_;
             return *this;
             }
-#endif
 
-        basic_string_ref(const charT* str) BOOST_NOEXCEPT
+        basic_string_ref(const charT* str)
             : ptr_(str), len_(traits::length(str)) {}
 
         template<typename Allocator>
         basic_string_ref(const std::basic_string<charT, traits, Allocator>& str)
             : ptr_(str.data()), len_(str.length()) {}
 
-// #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
-//         // Constructing a string_ref from a temporary string is a bad idea
-//         template<typename Allocator>
-//         basic_string_ref(      std::basic_string<charT, traits, Allocator>&&)
-//             = delete;
-// #endif
-
-        BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len) BOOST_NOEXCEPT
+        BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len)
             : ptr_(str), len_(len) {}
 
 #ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
         template<typename Allocator>
         explicit operator std::basic_string<charT, traits, Allocator>() const {
-            return std::basic_string<charT, traits, Allocator> ( begin(), end());
+            return std::basic_string<charT, traits, Allocator> ( ptr_, len_ );
             }
 #endif
 
         std::basic_string<charT, traits> to_string () const {
-            return std::basic_string<charT, traits> ( begin(), end());
+            return std::basic_string<charT, traits> ( ptr_, len_ );
             }
 
         // iterators
@@ -128,13 +103,13 @@ namespace boost {
         // capacity
         BOOST_CONSTEXPR size_type size()     const { return len_; }
         BOOST_CONSTEXPR size_type length()   const { return len_; }
-        BOOST_CONSTEXPR size_type max_size() const { return ~static_cast<size_type>(0) / (sizeof(value_type) * 2u); }
+        BOOST_CONSTEXPR size_type max_size() const { return len_; }
         BOOST_CONSTEXPR bool empty()         const { return len_ == 0; }
 
         // element access
         BOOST_CONSTEXPR const charT& operator[](size_type pos) const { return ptr_[pos]; }
 
-        const charT& at(size_type pos) const {
+        const charT& at(size_t pos) const {
             if ( pos >= len_ )
                 BOOST_THROW_EXCEPTION( std::out_of_range ( "boost::string_ref::at" ) );
             return ptr_[pos];
@@ -161,14 +136,12 @@ namespace boost {
 
 
         // basic_string_ref string operations
-        basic_string_ref substr() const {
-            return basic_string_ref(data(), size());
-            }
-
         basic_string_ref substr(size_type pos, size_type n=npos) const {
             if ( pos > size())
                 BOOST_THROW_EXCEPTION( std::out_of_range ( "string_ref::substr" ) );
-            return basic_string_ref(data() + pos, (std::min)(size() - pos, n));
+            if ( n == npos || pos + n > size())
+                n = size () - pos;
+            return basic_string_ref ( data() + pos, n );
             }
 
         int compare(basic_string_ref x) const {
@@ -187,7 +160,6 @@ namespace boost {
             }
 
         size_type find(basic_string_ref s) const {
-            if (s.empty()) return 0;
             const_iterator iter = std::search ( this->cbegin (), this->cend (),
                                                 s.cbegin (), s.cend (), traits::eq );
             return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
@@ -200,16 +172,15 @@ namespace boost {
             }
 
         size_type rfind(basic_string_ref s) const {
-            if (s.empty()) return 0;
             const_reverse_iterator iter = std::search ( this->crbegin (), this->crend (),
                                                 s.crbegin (), s.crend (), traits::eq );
-            return iter == this->crend () ? npos : (std::distance(iter, this->crend()) - s.size());
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
             }
 
         size_type rfind(charT c) const {
             const_reverse_iterator iter = std::find_if ( this->crbegin (), this->crend (),
                                     detail::string_ref_traits_eq<charT, traits> ( c ));
-            return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
             }
 
         size_type find_first_of(charT c) const { return  find (c); }
@@ -224,7 +195,7 @@ namespace boost {
         size_type find_last_of(basic_string_ref s) const {
             const_reverse_iterator iter = std::find_first_of
                 ( this->crbegin (), this->crend (), s.cbegin (), s.cend (), traits::eq );
-            return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter);
             }
 
         size_type find_first_not_of(basic_string_ref s) const {
@@ -241,17 +212,21 @@ namespace boost {
 
         size_type find_last_not_of(basic_string_ref s) const {
             const_reverse_iterator iter = find_not_of ( this->crbegin (), this->crend (), s );
-            return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
             }
 
         size_type find_last_not_of(charT c) const {
             for ( const_reverse_iterator iter = this->crbegin (); iter != this->crend (); ++iter )
                 if ( !traits::eq ( c, *iter ))
-                    return this->size() - 1 - std::distance(this->crbegin(), iter);
+                    return reverse_distance ( this->crbegin (), iter );
             return npos;
             }
 
     private:
+        template <typename r_iter>
+        size_type reverse_distance ( r_iter first, r_iter last ) const {
+            return len_ - 1 - std::distance ( first, last );
+            }
 
         template <typename Iterator>
         Iterator find_not_of ( Iterator first, Iterator last, basic_string_ref s ) const {
@@ -427,11 +402,52 @@ namespace boost {
         return basic_string_ref<charT, traits>(x) >= y;
         }
 
+    namespace detail {
+
+        template<class charT, class traits>
+        inline void insert_fill_chars(std::basic_ostream<charT, traits>& os, std::size_t n) {
+            enum { chunk_size = 8 };
+            charT fill_chars[chunk_size];
+            std::fill_n(fill_chars, static_cast< std::size_t >(chunk_size), os.fill());
+            for (; n >= chunk_size && os.good(); n -= chunk_size)
+                os.write(fill_chars, static_cast< std::size_t >(chunk_size));
+            if (n > 0 && os.good())
+                os.write(fill_chars, n);
+            }
+
+        template<class charT, class traits>
+        void insert_aligned(std::basic_ostream<charT, traits>& os, const basic_string_ref<charT,traits>& str) {
+            const std::size_t size = str.size();
+            const std::size_t alignment_size = static_cast< std::size_t >(os.width()) - size;
+            const bool align_left = (os.flags() & std::basic_ostream<charT, traits>::adjustfield) == std::basic_ostream<charT, traits>::left;
+            if (!align_left) {
+                detail::insert_fill_chars(os, alignment_size);
+                if (os.good())
+                    os.write(str.data(), size);
+                }
+            else {
+                os.write(str.data(), size);
+                if (os.good())
+                    detail::insert_fill_chars(os, alignment_size);
+                }
+            }
+
+        } // namespace detail
+
     // Inserter
     template<class charT, class traits>
     inline std::basic_ostream<charT, traits>&
     operator<<(std::basic_ostream<charT, traits>& os, const basic_string_ref<charT,traits>& str) {
-        return boost::io::ostream_put(os, str.data(), str.size());
+        if (os.good()) {
+            const std::size_t size = str.size();
+            const std::size_t w = static_cast< std::size_t >(os.width());
+            if (w <= size)
+                os.write(str.data(), size);
+            else
+                detail::insert_aligned(os, str);
+            os.width(0);
+            }
+        return os;
         }
 
 #if 0

include/boost/utility/string_view.hpp

@@ -1,694 +0,0 @@
-/*
-   Copyright (c) Marshall Clow 2012-2015.
-   Copyright (c) Beman Dawes 2015
-   Copyright (c) Glen Joseph Fernandes 2019 (glenjofe@gmail.com)
-
-   Distributed under the Boost Software License, Version 1.0. (See accompanying
-   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    For more information, see http://www.boost.org
-
-    Based on the StringRef implementation in LLVM (http://llvm.org) and
-    N3422 by Jeffrey Yasskin
-        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
-    Updated July 2015 to reflect the Library Fundamentals TS
-        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html
-*/
-
-#ifndef BOOST_STRING_VIEW_HPP
-#define BOOST_STRING_VIEW_HPP
-
-#include <boost/config.hpp>
-#include <boost/detail/workaround.hpp>
-#include <boost/io/ostream_put.hpp>
-#include <boost/utility/string_view_fwd.hpp>
-#include <boost/throw_exception.hpp>
-#include <boost/assert.hpp>
-
-#include <cstddef>
-#include <stdexcept>
-#include <algorithm>
-#include <iterator>
-#include <string>
-#include <cstring>
-#include <iosfwd>
-
-#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (defined(BOOST_GCC) && ((BOOST_GCC+0) / 100) <= 406)
-// GCC 4.6 cannot handle a defaulted function with noexcept specifier
-#define BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-#endif
-
-namespace boost {
-
-    namespace detail {
-    //  A helper functor because sometimes we don't have lambdas
-        template <typename charT, typename traits>
-        class string_view_traits_eq {
-        public:
-            string_view_traits_eq ( charT ch ) : ch_(ch) {}
-            bool operator()( charT val ) const { return traits::eq (ch_, val); }
-            charT ch_;
-            };
-        }
-
-    template<typename charT, typename traits>  // traits defaulted in string_view_fwd.hpp
-    class basic_string_view {
-    public:
-      // types
-      typedef traits                                traits_type;
-      typedef charT                                 value_type;
-      typedef charT*                                pointer;
-      typedef const charT*                          const_pointer;
-      typedef charT&                                reference;
-      typedef const charT&                          const_reference;
-      typedef const_pointer                         const_iterator; // impl-defined
-      typedef const_iterator                        iterator;
-      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
-      typedef const_reverse_iterator                reverse_iterator;
-      typedef std::size_t                           size_type;
-      typedef std::ptrdiff_t                        difference_type;
-      static BOOST_CONSTEXPR_OR_CONST size_type     npos = size_type(-1);
-
-      // construct/copy
-      BOOST_CONSTEXPR basic_string_view() BOOST_NOEXCEPT
-        : ptr_(NULL), len_(0) {}
-
-      // by defaulting these functions, basic_string_ref becomes
-      //  trivially copy/move constructible.
-      BOOST_CONSTEXPR basic_string_view(const basic_string_view &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-        = default;
-#else
-        : ptr_(rhs.ptr_), len_(rhs.len_) {}
-#endif
-
-      basic_string_view& operator=(const basic_string_view &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
-            = default;
-#else
-        {
-        ptr_ = rhs.ptr_;
-        len_ = rhs.len_;
-        return *this;
-        }
-#endif
-
-      template<typename Allocator>
-        basic_string_view(const std::basic_string<charT, traits, Allocator>& str) BOOST_NOEXCEPT
-          : ptr_(str.data()), len_(str.length()) {}
-
-// #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
-//       // Constructing a string_view from a temporary string is a bad idea
-//       template<typename Allocator>
-//         basic_string_view(      std::basic_string<charT, traits, Allocator>&&)
-//           = delete;
-// #endif
-
-      BOOST_CONSTEXPR basic_string_view(const charT* str)
-        : ptr_(str), len_(traits::length(str)) {}
-
-      BOOST_CONSTEXPR basic_string_view(const charT* str, size_type len)
-        : ptr_(str), len_(len) {}
-
-        // iterators
-        BOOST_CONSTEXPR const_iterator   begin() const BOOST_NOEXCEPT { return ptr_; }
-        BOOST_CONSTEXPR const_iterator  cbegin() const BOOST_NOEXCEPT { return ptr_; }
-        BOOST_CONSTEXPR const_iterator     end() const BOOST_NOEXCEPT { return ptr_ + len_; }
-        BOOST_CONSTEXPR const_iterator    cend() const BOOST_NOEXCEPT { return ptr_ + len_; }
-                const_reverse_iterator  rbegin() const BOOST_NOEXCEPT { return const_reverse_iterator(end()); }
-                const_reverse_iterator crbegin() const BOOST_NOEXCEPT { return const_reverse_iterator(end()); }
-                const_reverse_iterator    rend() const BOOST_NOEXCEPT { return const_reverse_iterator(begin()); }
-                const_reverse_iterator   crend() const BOOST_NOEXCEPT { return const_reverse_iterator(begin()); }
-
-        // capacity
-        BOOST_CONSTEXPR size_type size()     const BOOST_NOEXCEPT { return len_; }
-        BOOST_CONSTEXPR size_type length()   const BOOST_NOEXCEPT { return len_; }
-        BOOST_CONSTEXPR size_type max_size() const BOOST_NOEXCEPT { return ~static_cast<size_type>(0) / (sizeof(value_type) * 2u); }
-        BOOST_CONSTEXPR bool empty()         const BOOST_NOEXCEPT { return len_ == 0; }
-
-        // element access
-        BOOST_CONSTEXPR const_reference operator[](size_type pos) const BOOST_NOEXCEPT { return ptr_[pos]; }
-
-        BOOST_CONSTEXPR const_reference at(size_type pos) const {
-            return pos >= len_ ? BOOST_THROW_EXCEPTION(std::out_of_range("boost::string_view::at")), ptr_[0] : ptr_[pos];
-            }
-
-        BOOST_CONSTEXPR const_reference front() const                { return ptr_[0]; }
-        BOOST_CONSTEXPR const_reference back()  const                { return ptr_[len_-1]; }
-        BOOST_CONSTEXPR const_pointer data()    const BOOST_NOEXCEPT { return ptr_; }
-
-        // modifiers
-        void clear() BOOST_NOEXCEPT { len_ = 0; }          // Boost extension
-
-        BOOST_CXX14_CONSTEXPR void remove_prefix(size_type n) {
-            BOOST_ASSERT(n <= size());
-            // This check is deprecated and is left for backward compatibility. It will be removed in the future.
-            if ( n > len_ )
-                n = len_;
-            ptr_ += n;
-            len_ -= n;
-            }
-
-        BOOST_CXX14_CONSTEXPR void remove_suffix(size_type n) {
-            BOOST_ASSERT(n <= size());
-            // This check is deprecated and is left for backward compatibility. It will be removed in the future.
-            if ( n > len_ )
-                n = len_;
-            len_ -= n;
-            }
-
-        BOOST_CXX14_CONSTEXPR void swap(basic_string_view& s) BOOST_NOEXCEPT {
-            std::swap(ptr_, s.ptr_);
-            std::swap(len_, s.len_);
-            }
-
-        // basic_string_view string operations
-#ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
-        template<typename Allocator>
-        explicit operator std::basic_string<charT, traits, Allocator>() const {
-            return std::basic_string<charT, traits, Allocator>(begin(), end());
-            }
-#endif
-
-#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
-        template<typename Allocator = std::allocator<charT> >
-        std::basic_string<charT, traits, Allocator> to_string(const Allocator& a = Allocator()) const {
-            return std::basic_string<charT, traits, Allocator>(begin(), end(), a);
-            }
-#else
-        std::basic_string<charT, traits> to_string() const {
-            return std::basic_string<charT, traits>(begin(), end());
-            }
-
-        template<typename Allocator>
-        std::basic_string<charT, traits, Allocator> to_string(const Allocator& a) const {
-            return std::basic_string<charT, traits, Allocator>(begin(), end(), a);
-            }
-#endif
-
-        size_type copy(charT* s, size_type n, size_type pos=0) const {
-            if (pos > size())
-                BOOST_THROW_EXCEPTION(std::out_of_range("string_view::copy" ));
-            size_type rlen = (std::min)(n, len_ - pos);
-            traits_type::copy(s, data() + pos, rlen);
-            return rlen;
-            }
-
-        BOOST_CXX14_CONSTEXPR basic_string_view substr() const {
-            return basic_string_view(data(), size());
-            }
-
-        BOOST_CXX14_CONSTEXPR basic_string_view substr(size_type pos, size_type n=npos) const {
-            if ( pos > size())
-                BOOST_THROW_EXCEPTION( std::out_of_range ( "string_view::substr" ) );
-            return basic_string_view(data() + pos, (std::min)(size() - pos, n));
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(basic_string_view x) const BOOST_NOEXCEPT {
-            const int cmp = traits::compare(ptr_, x.ptr_, (std::min)(len_, x.len_));
-            return cmp != 0 ? cmp : (len_ == x.len_ ? 0 : len_ < x.len_ ? -1 : 1);
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, basic_string_view x)
-          const {
-            return substr(pos1, n1).compare(x);
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1,
-          basic_string_view x, size_type pos2, size_type n2) const {
-            return substr(pos1, n1).compare(x.substr(pos2, n2));
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(const charT* x) const {
-            return compare(basic_string_view(x));
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, const charT* x) const {
-            return substr(pos1, n1).compare(basic_string_view(x));
-            }
-
-        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1,
-          const charT* x, size_type n2) const {
-            return substr(pos1, n1).compare(basic_string_view(x, n2));
-            }
-
-        //  Searches
-        BOOST_CONSTEXPR bool starts_with(charT c) const BOOST_NOEXCEPT {              // Boost extension
-            return !empty() && traits::eq(c, front());
-            }
-
-        BOOST_CONSTEXPR bool starts_with(basic_string_view x) const BOOST_NOEXCEPT {  // Boost extension
-            return len_ >= x.len_ && traits::compare(ptr_, x.ptr_, x.len_) == 0;
-            }
-
-        BOOST_CONSTEXPR bool ends_with(charT c) const BOOST_NOEXCEPT {                // Boost extension
-            return !empty() && traits::eq(c, back());
-            }
-
-        BOOST_CONSTEXPR bool ends_with(basic_string_view x) const BOOST_NOEXCEPT {    // Boost extension
-            return len_ >= x.len_ &&
-               traits::compare(ptr_ + len_ - x.len_, x.ptr_, x.len_) == 0;
-            }
-
-        BOOST_CXX14_CONSTEXPR bool contains(basic_string_view s) const BOOST_NOEXCEPT {
-            return find(s) != npos;
-            }
-
-        BOOST_CXX14_CONSTEXPR bool contains(charT c) const BOOST_NOEXCEPT {
-            return find(c) != npos;
-            }
-
-        BOOST_CXX14_CONSTEXPR bool contains(const charT* s) const BOOST_NOEXCEPT {
-            return find(s) != npos;
-            }
-
-        //  find
-        BOOST_CXX14_CONSTEXPR size_type find(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
-            if (pos > size())
-              return npos;
-            if (s.empty())
-              return pos;
-            if (s.size() > size() - pos)
-                return npos;
-            const charT* cur = ptr_ + pos;
-            const charT* last = cend() - s.size() + 1;
-            for (; cur != last ; ++cur) {
-                cur = traits::find(cur, last - cur, s[0]);
-                if (!cur)
-                    return npos;
-                if (traits::compare(cur, s.cbegin(), s.size()) == 0)
-                    return cur - ptr_;
-            }
-            return npos;
-            }
-        BOOST_CXX14_CONSTEXPR size_type find(charT c, size_type pos = 0) const BOOST_NOEXCEPT {
-            if (pos > size())
-              return npos;
-            const charT* ret_ptr = traits::find(ptr_ + pos, len_ - pos, c);
-            if (ret_ptr)
-              return ret_ptr - ptr_;
-            return npos;
-            }
-        BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return find(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT
-            { return find(basic_string_view(s), pos); }
-
-        //  rfind
-        BOOST_CXX14_CONSTEXPR size_type rfind(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
-            if (len_ < s.len_)
-              return npos;
-            if (pos > len_ - s.len_)
-              pos = len_ - s.len_;
-            if (s.len_ == 0u)     // an empty string is always found
-              return pos;
-            for (const charT* cur = ptr_ + pos; ; --cur) {
-                if (traits::compare(cur, s.ptr_, s.len_) == 0)
-                  return cur - ptr_;
-                if (cur == ptr_)
-                  return npos;
-                };
-            }
-        BOOST_CXX14_CONSTEXPR size_type rfind(charT c, size_type pos = npos) const BOOST_NOEXCEPT
-            { return rfind(basic_string_view(&c, 1), pos); }
-        BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return rfind(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT
-            { return rfind(basic_string_view(s), pos); }
-
-        //  find_first_of
-        BOOST_CXX14_CONSTEXPR size_type find_first_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
-            if (pos >= len_ || s.len_ == 0)
-              return npos;
-            const_iterator iter = std::find_first_of
-                (this->cbegin () + pos, this->cend (), s.cbegin (), s.cend (), traits::eq);
-            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
-            }
-        BOOST_CXX14_CONSTEXPR size_type find_first_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT
-            { return find(c, pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return find_first_of(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT
-            { return find_first_of(basic_string_view(s), pos); }
-
-        //  find_last_of
-        BOOST_CXX14_CONSTEXPR size_type find_last_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
-            if (s.len_ == 0u)
-              return npos;
-            if (pos >= len_)
-              pos = 0;
-            else
-              pos = len_ - (pos+1);
-            const_reverse_iterator iter = std::find_first_of
-                ( this->crbegin () + pos, this->crend (), s.cbegin (), s.cend (), traits::eq );
-            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter);
-            }
-        BOOST_CXX14_CONSTEXPR size_type find_last_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT
-            { return find_last_of(basic_string_view(&c, 1), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return find_last_of(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT
-            { return find_last_of(basic_string_view(s), pos); }
-
-        //  find_first_not_of
-        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
-            if (pos >= len_)
-              return npos;
-            if (s.len_ == 0)
-              return pos;
-            const_iterator iter = find_not_of ( this->cbegin () + pos, this->cend (), s );
-            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
-            }
-        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT
-            { return find_first_not_of(basic_string_view(&c, 1), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return find_first_not_of(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT
-            { return find_first_not_of(basic_string_view(s), pos); }
-
-        //  find_last_not_of
-        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
-            if (pos >= len_)
-              pos = len_ - 1;
-            if (s.len_ == 0u)
-              return pos;
-            pos = len_ - (pos+1);
-            const_reverse_iterator iter = find_not_of ( this->crbegin () + pos, this->crend (), s );
-            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
-            }
-        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT
-            { return find_last_not_of(basic_string_view(&c, 1), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT
-            { return find_last_not_of(basic_string_view(s, n), pos); }
-        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT
-            { return find_last_not_of(basic_string_view(s), pos); }
-
-    private:
-        template <typename r_iter>
-        size_type reverse_distance(r_iter first, r_iter last) const BOOST_NOEXCEPT {
-        // Portability note here: std::distance is not NOEXCEPT, but calling it with a string_view::reverse_iterator will not throw.
-            return len_ - 1 - std::distance ( first, last );
-            }
-
-        template <typename Iterator>
-        Iterator find_not_of(Iterator first, Iterator last, basic_string_view s) const BOOST_NOEXCEPT {
-            for (; first != last ; ++first)
-                if ( 0 == traits::find(s.ptr_, s.len_, *first))
-                    return first;
-            return last;
-            }
-
-        const charT *ptr_;
-        std::size_t len_;
-        };
-
-
-//  Comparison operators
-//  Equality
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        if (x.size () != y.size ()) return false;
-        return x.compare(y) == 0;
-        }
-
-//  Inequality
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        if ( x.size () != y.size ()) return true;
-        return x.compare(y) != 0;
-        }
-
-//  Less than
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x,
-                          basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return x.compare(y) < 0;
-        }
-
-//  Greater than
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x,
-                          basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return x.compare(y) > 0;
-        }
-
-//  Less than or equal to
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return x.compare(y) <= 0;
-        }
-
-//  Greater than or equal to
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return x.compare(y) >= 0;
-        }
-
-// "sufficient additional overloads of comparison functions"
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x,
-                     const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x == basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator==(const std::basic_string<charT, traits, Allocator> & x,
-                                 basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) == y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x,
-                                              const charT * y) BOOST_NOEXCEPT {
-        return x == basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator==(const charT * x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) == y;
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x,
-                     const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x != basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator!=(const std::basic_string<charT, traits, Allocator> & x,
-                                 basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) != y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x,
-                           const charT * y) BOOST_NOEXCEPT {
-        return x != basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator!=(const charT * x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) != y;
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x,
-                    const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x < basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator<(const std::basic_string<charT, traits, Allocator> & x,
-                                basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) < y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x,
-                          const charT * y) BOOST_NOEXCEPT {
-        return x < basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<(const charT * x,
-                          basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) < y;
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x,
-                    const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x > basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator>(const std::basic_string<charT, traits, Allocator> & x,
-                                basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) > y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x,
-                          const charT * y) BOOST_NOEXCEPT {
-        return x > basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>(const charT * x,
-                          basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) > y;
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x,
-                     const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x <= basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator<=(const std::basic_string<charT, traits, Allocator> & x,
-                                 basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) <= y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x,
-                           const charT * y) BOOST_NOEXCEPT {
-        return x <= basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator<=(const charT * x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) <= y;
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x,
-                     const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT {
-        return x >= basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits, typename Allocator>
-    inline BOOST_CXX14_CONSTEXPR bool operator>=(const std::basic_string<charT, traits, Allocator> & x,
-                                 basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) >= y;
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x,
-                           const charT * y) BOOST_NOEXCEPT {
-        return x >= basic_string_view<charT, traits>(y);
-        }
-
-    template<typename charT, typename traits>
-    inline BOOST_CXX14_CONSTEXPR bool operator>=(const charT * x,
-                           basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
-        return basic_string_view<charT, traits>(x) >= y;
-        }
-
-    // Inserter
-    template<class charT, class traits>
-    inline std::basic_ostream<charT, traits>&
-    operator<<(std::basic_ostream<charT, traits>& os,
-      const basic_string_view<charT,traits>& str) {
-        return boost::io::ostream_put(os, str.data(), str.size());
-        }
-
-#if 0
-    // numeric conversions
-    //
-    //  These are short-term implementations.
-    //  In a production environment, I would rather avoid the copying.
-    //
-    inline int stoi (string_view str, size_t* idx=0, int base=10) {
-        return std::stoi ( std::string(str), idx, base );
-        }
-
-    inline long stol (string_view str, size_t* idx=0, int base=10) {
-        return std::stol ( std::string(str), idx, base );
-        }
-
-    inline unsigned long stoul (string_view str, size_t* idx=0, int base=10) {
-        return std::stoul ( std::string(str), idx, base );
-        }
-
-    inline long long stoll (string_view str, size_t* idx=0, int base=10) {
-        return std::stoll ( std::string(str), idx, base );
-        }
-
-    inline unsigned long long stoull (string_view str, size_t* idx=0, int base=10) {
-        return std::stoull ( std::string(str), idx, base );
-        }
-
-    inline float stof (string_view str, size_t* idx=0) {
-        return std::stof ( std::string(str), idx );
-        }
-
-    inline double stod (string_view str, size_t* idx=0) {
-        return std::stod ( std::string(str), idx );
-        }
-
-    inline long double stold (string_view str, size_t* idx=0)  {
-        return std::stold ( std::string(str), idx );
-        }
-
-    inline int  stoi (wstring_view str, size_t* idx=0, int base=10) {
-        return std::stoi ( std::wstring(str), idx, base );
-        }
-
-    inline long stol (wstring_view str, size_t* idx=0, int base=10) {
-        return std::stol ( std::wstring(str), idx, base );
-        }
-
-    inline unsigned long stoul (wstring_view str, size_t* idx=0, int base=10) {
-        return std::stoul ( std::wstring(str), idx, base );
-        }
-
-    inline long long stoll (wstring_view str, size_t* idx=0, int base=10) {
-        return std::stoll ( std::wstring(str), idx, base );
-        }
-
-    inline unsigned long long stoull (wstring_view str, size_t* idx=0, int base=10) {
-        return std::stoull ( std::wstring(str), idx, base );
-        }
-
-    inline float  stof (wstring_view str, size_t* idx=0) {
-        return std::stof ( std::wstring(str), idx );
-        }
-
-    inline double stod (wstring_view str, size_t* idx=0) {
-        return std::stod ( std::wstring(str), idx );
-        }
-
-    inline long double stold (wstring_view str, size_t* idx=0) {
-        return std::stold ( std::wstring(str), idx );
-        }
-#endif
-
-    // Forward declaration of Boost.ContainerHash function
-    template <class It> std::size_t hash_range(It, It);
-
-    template <class charT, class traits>
-    std::size_t hash_value(basic_string_view<charT, traits> s) {
-        return boost::hash_range(s.begin(), s.end());
-        }
-}
-
-#if 0
-namespace std {
-    // Hashing
-    template<> struct hash<boost::string_view>;
-    template<> struct hash<boost::u16string_view>;
-    template<> struct hash<boost::u32string_view>;
-    template<> struct hash<boost::wstring_view>;
-}
-#endif
-
-#endif

include/boost/utility/string_view_fwd.hpp

@@ -1,39 +0,0 @@
-/*
-   Copyright (c) Marshall Clow 2012-2012.
-
-   Distributed under the Boost Software License, Version 1.0. (See accompanying
-   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-    For more information, see http://www.boost.org
-
-    Based on the StringRef implementation in LLVM (http://llvm.org) and
-    N3422 by Jeffrey Yasskin
-        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
-    Updated July 2015 to reflect the Library Fundamentals TS
-        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html
-
-*/
-
-#ifndef BOOST_STRING_VIEW_FWD_HPP
-#define BOOST_STRING_VIEW_FWD_HPP
-
-#include <boost/config.hpp>
-#include <string>
-
-namespace boost {
-
-    template<typename charT, typename traits = std::char_traits<charT> > class basic_string_view;
-    typedef basic_string_view<char,     std::char_traits<char> >        string_view;
-    typedef basic_string_view<wchar_t,  std::char_traits<wchar_t> >    wstring_view;
-
-#ifndef BOOST_NO_CXX11_CHAR16_T
-    typedef basic_string_view<char16_t, std::char_traits<char16_t> > u16string_view;
-#endif
-
-#ifndef BOOST_NO_CXX11_CHAR32_T
-    typedef basic_string_view<char32_t, std::char_traits<char32_t> > u32string_view;
-#endif
-
-}
-
-#endif

include/boost/utility/swap.hpp

@@ -0,0 +1,55 @@
+// Copyright (C) 2007, 2008 Steven Watanabe, Joseph Gauterin, Niels Dekker
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// For more information, see http://www.boost.org
+
+
+#ifndef BOOST_UTILITY_SWAP_HPP
+#define BOOST_UTILITY_SWAP_HPP
+
+// Note: the implementation of this utility contains various workarounds:
+// - swap_impl is put outside the boost namespace, to avoid infinite
+// recursion (causing stack overflow) when swapping objects of a primitive
+// type.
+// - swap_impl has a using-directive, rather than a using-declaration,
+// because some compilers (including MSVC 7.1, Borland 5.9.3, and
+// Intel 8.1) don't do argument-dependent lookup when it has a
+// using-declaration instead.
+// - boost::swap has two template arguments, instead of one, to
+// avoid ambiguity when swapping objects of a Boost type that does
+// not have its own boost::swap overload.
+
+#include <algorithm> //for std::swap
+#include <cstddef> //for std::size_t
+
+namespace boost_swap_impl
+{
+  template<class T>
+  void swap_impl(T& left, T& right)
+  {
+    using namespace std;//use std::swap if argument dependent lookup fails
+    swap(left,right);
+  }
+
+  template<class T, std::size_t N>
+  void swap_impl(T (& left)[N], T (& right)[N])
+  {
+    for (std::size_t i = 0; i < N; ++i)
+    {
+      ::boost_swap_impl::swap_impl(left[i], right[i]);
+    }
+  }
+}
+
+namespace boost
+{
+  template<class T1, class T2>
+  void swap(T1& left, T2& right)
+  {
+    ::boost_swap_impl::swap_impl(left, right);
+  }
+}
+
+#endif

include/boost/utility/typed_in_place_factory.hpp

@@ -19,20 +19,15 @@ namespace boost {
 
 class typed_in_place_factory_base {} ;
 
-#ifndef BOOST_UTILITY_DOCS
 #define  BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY)
 #define  BOOST_PP_FILENAME_1 <boost/utility/typed_in_place_factory.hpp>
-#endif // BOOST_UTILITY_DOCS
-
 #include BOOST_PP_ITERATE()
+
 } // namespace boost
 
 #include <boost/utility/detail/in_place_factory_suffix.hpp>
 
-#ifndef BOOST_UTILITY_DOCS
 #define BOOST_UTILITY_TYPED_INPLACE_FACTORY_04APR2007_HPP
-#endif // BOOST_UTILITY_DOCS
-
 #else 
 #define N BOOST_PP_ITERATION()
 

include/boost/utility/value_init.hpp

@@ -1,5 +1,4 @@
 // (C) Copyright 2002-2008, Fernando Luis Cacciola Carballal.
-// Copyright 2020 Peter Dimov
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -22,13 +21,19 @@
 // issues, by clearing the bytes of T, before constructing the T object it
 // contains. More details on these issues are at libs/utility/value_init.htm
 
+#include <boost/aligned_storage.hpp>
 #include <boost/config.hpp> // For BOOST_NO_COMPLETE_VALUE_INITIALIZATION.
-#include <boost/core/swap.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/cv_traits.hpp>
+#include <boost/type_traits/alignment_of.hpp>
+#include <boost/swap.hpp>
 #include <cstring>
-#include <cstddef>
+#include <new>
 
 #ifdef BOOST_MSVC
 #pragma warning(push)
+#if _MSC_VER >= 1310
 // It is safe to ignore the following warning from MSVC 7.1 or higher:
 // "warning C4351: new behavior: elements of array will be default initialized"
 #pragma warning(disable: 4351)
@@ -36,8 +41,7 @@
 // a const type: "warning C4512: assignment operator could not be generated".
 #pragma warning(disable: 4512)
 #endif
-
-#ifndef BOOST_UTILITY_DOCS
+#endif
 
 #ifdef BOOST_NO_COMPLETE_VALUE_INITIALIZATION
   // Implementation detail: The macro BOOST_DETAIL_VALUE_INIT_WORKAROUND_SUGGESTED 
@@ -56,100 +60,116 @@
   #endif
 #endif
 
-#endif // BOOST_UTILITY_DOCS
-
 namespace boost {
 
-namespace detail {
-
-  struct zero_init
-  {
-    zero_init()
-    {
-    }
-
-    zero_init( void * p, std::size_t n )
-    {
-      std::memset( p, 0, n );
-    }
-  };
-
-} // namespace detail
-
 template<class T>
 class initialized
-#if BOOST_DETAIL_VALUE_INIT_WORKAROUND
-  : detail::zero_init
-#endif
 {
-  private:
+  private :
+    struct wrapper
+    {
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592))
+      typename
+#endif 
+      remove_const<T>::type data;
 
-    T data_;
+      wrapper()
+      :
+      data()
+      {
+      }
+
+      wrapper(T const & arg)
+      :
+      data(arg)
+      {
+      }
+    };
+
+    mutable
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592))
+      typename
+#endif 
+      aligned_storage<sizeof(wrapper), alignment_of<wrapper>::value>::type x;
+
+    wrapper * wrapper_address() const
+    {
+      return static_cast<wrapper *>( static_cast<void*>(&x));
+    }
 
   public :
 
-    BOOST_GPU_ENABLED
-    initialized():
+    initialized()
+    {
 #if BOOST_DETAIL_VALUE_INIT_WORKAROUND
-      zero_init( &const_cast< char& >( reinterpret_cast<char const volatile&>( data_ ) ), sizeof( data_ ) ),
+      std::memset(&x, 0, sizeof(x));
 #endif
-      data_()
-    {
+      new (wrapper_address()) wrapper();
     }
 
-    BOOST_GPU_ENABLED
-    explicit initialized(T const & arg): data_( arg )
+    initialized(initialized const & arg)
     {
+      new (wrapper_address()) wrapper( static_cast<wrapper const &>(*(arg.wrapper_address())));
+    }
+
+    explicit initialized(T const & arg)
+    {
+      new (wrapper_address()) wrapper(arg);
+    }
+
+    initialized & operator=(initialized const & arg)
+    {
+      // Assignment is only allowed when T is non-const.
+      BOOST_STATIC_ASSERT( ! is_const<T>::value );
+      *wrapper_address() = static_cast<wrapper const &>(*(arg.wrapper_address()));
+      return *this;
+    }
+
+    ~initialized()
+    {
+      wrapper_address()->wrapper::~wrapper();
     }
 
-    BOOST_GPU_ENABLED
     T const & data() const
     {
-      return data_;
+      return wrapper_address()->data;
     }
 
-    BOOST_GPU_ENABLED
     T& data()
     {
-      return data_;
+      return wrapper_address()->data;
     }
 
-    BOOST_GPU_ENABLED
     void swap(initialized & arg)
     {
       ::boost::swap( this->data(), arg.data() );
     }
 
-    BOOST_GPU_ENABLED
     operator T const &() const
     {
-      return data_;
+      return wrapper_address()->data;
     }
 
-    BOOST_GPU_ENABLED
     operator T&()
     {
-      return data_;
+      return wrapper_address()->data;
     }
 
 } ;
 
 template<class T>
-BOOST_GPU_ENABLED
 T const& get ( initialized<T> const& x )
 {
   return x.data() ;
 }
 
 template<class T>
-BOOST_GPU_ENABLED
 T& get ( initialized<T>& x )
 {
   return x.data() ;
 }
 
 template<class T>
-BOOST_GPU_ENABLED
 void swap ( initialized<T> & lhs, initialized<T> & rhs )
 {
   lhs.swap(rhs) ;
@@ -165,37 +185,31 @@ class value_initialized
 
   public :
     
-    BOOST_GPU_ENABLED
     value_initialized()
     :
     m_data()
     { }
     
-    BOOST_GPU_ENABLED
     T const & data() const
     {
       return m_data.data();
     }
 
-    BOOST_GPU_ENABLED
     T& data()
     {
       return m_data.data();
     }
 
-    BOOST_GPU_ENABLED
     void swap(value_initialized & arg)
     {
       m_data.swap(arg.m_data);
     }
 
-    BOOST_GPU_ENABLED
     operator T const &() const
     {
       return m_data;
     }
 
-    BOOST_GPU_ENABLED
     operator T&()
     {
       return m_data;
@@ -204,21 +218,18 @@ class value_initialized
 
 
 template<class T>
-BOOST_GPU_ENABLED
 T const& get ( value_initialized<T> const& x )
 {
   return x.data() ;
 }
 
 template<class T>
-BOOST_GPU_ENABLED
 T& get ( value_initialized<T>& x )
 {
   return x.data() ;
 }
 
 template<class T>
-BOOST_GPU_ENABLED
 void swap ( value_initialized<T> & lhs, value_initialized<T> & rhs )
 {
   lhs.swap(rhs) ;
@@ -229,7 +240,7 @@ class initialized_value_t
 {
   public :
     
-    template <class T> BOOST_GPU_ENABLED operator T() const
+    template <class T> operator T() const
     {
       return initialized<T>().data();
     }

index.html

@@ -1,19 +1,52 @@
 <html>
-<head>
-    <title>Boost.Utility</title>
-    <meta http-equiv="refresh" content="0; URL=./doc/html/index.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="./doc/html/index.html">./doc/html/index.html</a>
-<hr>
-<tt>
-    Boost.Utility<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
-</body>
+	<head>
+		<meta http-equiv="Content-Language" content="en-us">
+		<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
+		<meta name="ProgId" content="FrontPage.Editor.Document">
+		<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
+		<title>Boost Utility Library</title>
+	</head>
+	<body bgcolor="#FFFFFF">
+		<h1><IMG SRC="../../boost.png" WIDTH="276" HEIGHT="86" align="center">Boost 
+			Utility Library</h1>
+		<p>The Boost Utility Library isn't really a single library at all. It is just a 
+			collection for components too small to be called libraries in their own right.</p>
+		<p>But that doesn't mean there isn't useful stuff here. Take a look:</p>
+		<blockquote>
+			<p>
+				<a href="utility.htm#addressof">addressof</a><br>
+				<a href="assert.html">assert</a><br>
+				<a href="base_from_member.html">base_from_member</a><br>
+				<a href="utility.htm#BOOST_BINARY">BOOST_BINARY</a><br>
+				<a href="call_traits.htm">call_traits</a><br>
+				<a href="checked_delete.html">checked_delete</a><br>
+				<a href="compressed_pair.htm">compressed_pair</a><br>
+				<a href="current_function.html">current_function</a><br>
+				<a href="doc/html/declval.html">declval</a><br>
+				<a href="enable_if.html">enable_if</a><br>
+				<a href="in_place_factories.html">in_place_factory</a><br>
+				<a href="iterator_adaptors.htm">iterator_adaptors</a><br>
+				<a href="generator_iterator.htm">generator iterator adaptors</a><br>
+				<a href="utility.htm#functions_next_prior">next/prior</a><br>
+				<a href="utility.htm#Class_noncopyable">noncopyable</a><br>
+				<a href="operators.htm">operators</a><br>
+				<a href="utility.htm#result_of">result_of</a><br>
+				<a href="swap.html">swap</a><br>
+				<a href="throw_exception.html">throw_exception</a><br>
+				<a href="utility.htm">utility</a><br>
+            <a href="doc/html/string_ref.html">string_ref</a><br>
+            <a href="value_init.htm">value_init</a>
+            <a href="doc/html/explicit_operator_bool.html">BOOST_EXPLICIT_OPERATOR_BOOL and BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL</a><br>
+         </p>
+		</blockquote>
+		<hr>
+		<p>&copy; Copyright Beman Dawes, 2001</p>
+        <p>Distributed under the Boost Software License, Version 1.0. (See 
+        accompanying file <a href="../../LICENSE_1_0.txt">
+        LICENSE_1_0.txt</a> or copy at
+        <a href="http://www.boost.org/LICENSE_1_0.txt">
+        www.boost.org/LICENSE_1_0.txt</a>)</p>
+		<p>Revised 
+			<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->07 November, 2006<!--webbot bot="Timestamp" endspan i-checksum="39368" --></p>
+		</body>
 </html>

initialized_test.cpp

@@ -9,7 +9,7 @@
 // 2 May 2010 (Created) Niels Dekker
 
 #include <boost/utility/value_init.hpp>
-#include <boost/core/lightweight_test.hpp>
+#include <boost/detail/lightweight_test.hpp>
 
 #include <string>
 

iterator_adaptors.htm

@@ -1,19 +1,11 @@
+<!-- Copyright David Abrahams 2004. Distributed under the Boost -->
+<!-- Software License, Version 1.0. (See accompanying -->
+<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
 <html>
 <head>
-    <title>Boost.Iterator</title>
-    <meta http-equiv="refresh" content="0; URL=../iterator/doc/index.html">
+<meta http-equiv="refresh" content="0; URL=../iterator/doc/index.html">
 </head>
 <body>
-Automatic redirection failed, please go to
-<a href="../iterator/doc/index.html">../iterator/doc/index.html</a>
-<hr>
-<tt>
-    Boost.Iterator<br>
-    <br>
-    Distributed under the Boost Software License, Version 1.0.
-    (See accompanying file LICENSE_1_0.txt or copy at
-    <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
-    <br>
-</tt>
+This documentation moved to <a href="../iterator/doc/index.html">../iterator/doc/index.html</a>.
 </body>
 </html>