Update copyright years

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+        interval: "weekly"

.github/workflows/ci.yml

@@ -0,0 +1,182 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+
+env:
+  UBSAN_OPTIONS: print_stacktrace=1
+
+jobs:
+  posix:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: gcc-14  # Do not remove! It is the only toolset that tests CMake tests down below
+            cxxstd: "03,11,14,17,20"
+            os: ubuntu-24.04
+          - toolset: gcc-12
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-22.04
+            cxxflags: "cxxflags=--coverage -fsanitize=address,leak,undefined -fno-sanitize-recover=undefined"
+            linkflags: "linkflags=--coverage -lasan -lubsan"
+            gcov_tool: "gcov-12"
+          - toolset: clang
+            compiler: clang++-14
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-22.04
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt install ${{matrix.install}}
+
+      - 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
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 10 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          git submodule update --init --depth 10 --jobs 2 tools/boostdep tools/inspect libs/filesystem
+          python tools/boostdep/depinst/depinst.py --git_args "--depth 10 --jobs 3" filesystem
+          rm -rf libs/$LIBRARY/*
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          python tools/boostdep/depinst/depinst.py --include benchmark --include example --include examples --include tools --git_args "--depth 10 --jobs 3" $LIBRARY
+          ./bootstrap.sh
+          ./b2 -j4 variant=debug tools/inspect
+
+      - name: Run CMake tests
+        if: ${{matrix.toolset == 'gcc-14'}}
+        run: |
+          cd ../boost-root/
+          mkdir __build
+          cd __build
+          cmake -DBUILD_TESTING=1 -DBOOST_INCLUDE_LIBRARIES=conversion -DCMAKE_CXX_COMPILER=g++-14 -DCMAKE_C_COMPILER=gcc-14 ..
+          cmake --build . --target tests
+          ctest --output-on-failure --no-tests=error
+          cd ..
+          rm -rf __build
+
+      - name: Run tests
+        run: |
+          cd ../boost-root
+          ./b2 -j3 libs/$LIBRARY/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} variant=debug,release "${{matrix.cxxflags}}" "${{matrix.linkflags}}" "${{matrix.launcher}}"
+          dist/bin/inspect libs/$LIBRARY
+
+      - name: Prepare coverage data
+        if: matrix.gcov_tool
+        run: |
+          mkdir -p $GITHUB_WORKSPACE/coveralls
+
+          echo -e "#!/bin/bash\nexec ${{matrix.gcov_tool}} \"\$@\"" > $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh
+          chmod +x $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh
+          wget https://github.com/linux-test-project/lcov/archive/v1.16.zip
+          unzip v1.16.zip
+          LCOV="`pwd`/lcov-1.16/bin/lcov --gcov-tool $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh"
+
+          echo "$LCOV --directory ../boost-root/bin.v2/libs/$LIBRARY/ --base-directory `pwd`/libs/$LIBRARY/test --capture --output-file $GITHUB_WORKSPACE/coveralls/coverage.info"
+          $LCOV --directory ../boost-root/bin.v2/libs/$LIBRARY/ --base-directory ../boost-root/ --capture --output-file $GITHUB_WORKSPACE/coveralls/coverage.info
+          $LCOV --remove $GITHUB_WORKSPACE/coveralls/coverage.info "/usr*" "*/$LIBRARY/test/*" ${{matrix.ignore_coverage}} "*/$LIBRARY/tests/*" "*/$LIBRARY/examples/*" "*/$LIBRARY/example/*" -o $GITHUB_WORKSPACE/coveralls/coverage.info
+
+          cd ../boost-root
+          OTHER_LIBS=`grep "submodule .*" .gitmodules | sed 's/\[submodule\ "\(.*\)"\]/"\*\/boost\/\1\.hpp" "\*\/boost\/\1\/\*"/g'| sed "/\"\*\/boost\/$LIBRARY\/\*\"/d" | sed ':a;N;$!ba;s/\n/ /g'`
+          echo $OTHER_LIBS
+          eval "$LCOV --remove $GITHUB_WORKSPACE/coveralls/coverage.info $OTHER_LIBS -o $GITHUB_WORKSPACE/coveralls/coverage.info"
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        if: matrix.gcov_tool
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ./coveralls/coverage.info
+          parallel: true
+
+  windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: msvc-14.3
+            cxxstd: "14,17,latest"
+            addrmd: 32,64
+            os: windows-2025
+          - toolset: gcc
+            cxxstd: "03,11,14,17,2a"
+            addrmd: 64
+            os: windows-2025
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 10 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --include benchmark --include example --include examples --include tools --git_args "--jobs 3" %LIBRARY%
+          cmd /c bootstrap
+
+      - name: Run CMake tests
+        if: ${{matrix.toolset == 'msvc-14.3'}}
+        shell: cmd
+        run: |
+          choco install --no-progress ninja
+          call "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Auxiliary/Build/vcvarsall.bat" x64
+          cd ../boost-root/
+          mkdir __build
+          cd __build
+          cmake -DBUILD_TESTING=1 -DBOOST_INCLUDE_LIBRARIES=conversion ..
+          cmake --build . --target tests --config Debug
+          ctest --output-on-failure --no-tests=error -C Debug
+          cd ..
+          rm -rf __build
+
+      - name: Run tests
+        shell: cmd
+        run: |
+          cd ../boost-root
+          b2 -j3 libs/%LIBRARY%/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} address-model=${{matrix.addrmd}} variant=debug,release
+
+  finish:
+    needs: posix
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.github_token }}
+        parallel-finished: true

CMakeLists.txt

@@ -0,0 +1,22 @@
+# Copyright 2019 Mike Dev
+# 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...4.20 )
+project( boost_conversion VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX )
+
+add_library( boost_conversion INTERFACE )
+add_library( Boost::conversion ALIAS boost_conversion )
+
+target_include_directories( boost_conversion INTERFACE include )
+
+target_link_libraries( boost_conversion
+    INTERFACE
+        Boost::assert
+        Boost::config
+        Boost::throw_exception
+)
+
+if(BUILD_TESTING)
+  add_subdirectory(test)
+endif()

README.md

@@ -0,0 +1,15 @@
+# [Boost.Conversion](https://boost.org/libs/conversion)
+Boost.Conversion is one of the [Boost C++ Libraries](https://github.com/boostorg). This library improves program safety and clarity by performing otherwise messy conversions. 
+
+### Test results
+
+@               | Build         | Tests coverage | More info
+----------------|-------------- | -------------- |-----------
+Develop branch: | [![CI](https://github.com/boostorg/conversion/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/conversion/actions/workflows/ci.yml) [![Build status](https://ci.appveyor.com/api/projects/status/1cky1hrunfa46bdx/branch/develop?svg=true)](https://ci.appveyor.com/project/apolukhin/conversion/branch/develop) | [![Coverage Status](https://coveralls.io/repos/github/boostorg/conversion/badge.svg?branch=develop)](https://coveralls.io/github/boostorg/conversion?branch=develop) | [details...](https://regression.boost.io/develop/developer/conversion.html)
+Master branch:  | [![CI](https://github.com/boostorg/conversion/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/conversion/actions/workflows/ci.yml) [![Build status](https://ci.appveyor.com/api/projects/status/1cky1hrunfa46bdx/branch/master?svg=true)](https://ci.appveyor.com/project/apolukhin/conversion/branch/master) | [![Coverage Status](https://coveralls.io/repos/github/boostorg/conversion/badge.svg?branch=master)](https://coveralls.io/github/boostorg/conversion?branch=master) | [details...](https://regression.boost.io/master/developer/conversion.html)
+
+[Latest developer documentation](https://www.boost.org/doc/libs/develop/doc/html/conversion.html)
+
+### License
+
+Distributed under the [Boost Software License, Version 1.0](https://boost.org/LICENSE_1_0.txt).

build.jam

@@ -0,0 +1,25 @@
+# Copyright René Ferdinand Rivera Morell 2023-2024
+# 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)
+
+require-b2 5.2 ;
+
+constant boost_dependencies :
+    /boost/assert//boost_assert
+    /boost/config//boost_config
+    /boost/throw_exception//boost_throw_exception ;
+
+project /boost/conversion
+    : common-requirements
+        <include>include
+    ;
+
+explicit
+    [ alias boost_conversion : : : : <library>$(boost_dependencies) ]
+    [ alias all : boost_conversion test ]
+    ;
+
+call-if : boost-library conversion
+    ;
+

cast.htm

@@ -1,140 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-
-<html>
-  <head>
-    <meta name="generator" content=
-    "Microsoft FrontPage 5.0">
-    <meta http-equiv="Content-Type" content=
-    "text/html; charset=windows-1252">
-    <meta name="GENERATOR" content="Microsoft FrontPage 4.0">
-    <meta name="ProgId" content="FrontPage.Editor.Document">
-
-    <title>Header boost/cast.hpp Documentation</title>
-  </head>
-
-  <body bgcolor="#FFFFFF" text="#000000">
-    <h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align=
-    "middle" width="277" height="86">Header <a href=
-    "../../boost/cast.hpp">boost/cast.hpp</a></h1>
-
-    <h2><a name="Cast Functions">Cast Functions</a></h2>
-
-    <p>The header <a href="../../boost/cast.hpp">boost/cast.hpp</a> provides <code>
-    <a href="#Polymorphic_cast">polymorphic_cast</a> and</code> <a href=
-    "#Polymorphic_cast"><code>polymorphic_downcast</code></a> function templates designed to
-    complement the C++ built-in casts.</p>
-
-    <p>The program <a href="cast_test.cpp">cast_test.cpp</a> can be used to
-    verify these function templates work as expected.</p>
-
-    <h3><a name="Polymorphic_cast">Polymorphic casts</a></h3>
-
-    <p>Pointers to polymorphic objects (objects of classes which define at
-    least one virtual function) are sometimes downcast or crosscast.
-    Downcasting means casting from a base class to a derived class.
-    Crosscasting means casting across an inheritance hierarchy diagram, such
-    as from one base to the other in a <code>Y</code> diagram hierarchy.</p>
-
-    <p>Such casts can be done with old-style casts, but this approach is
-    never to be recommended. Old-style casts are sorely lacking in type
-    safety, suffer poor readability, and are difficult to locate with search
-    tools.</p>
-
-    <p>The C++ built-in <code>static_cast</code> can be used for efficiently
-    downcasting pointers to polymorphic objects, but provides no error
-    detection for the case where the pointer being cast actually points to
-    the wrong derived class. The <code>polymorphic_downcast</code> template retains
-    the efficiency of <code>static_cast</code> for non-debug compilations, but for
-    debug compilations adds safety via an assert() that a <code>dynamic_cast</code>
-    succeeds.</p>
-
-    <p>The C++ built-in <code>dynamic_cast</code> can be used for downcasts and
-    crosscasts of pointers to polymorphic objects, but error notification in
-    the form of a returned value of 0 is inconvenient to test, or worse yet,
-    easy to forget to test. The throwing form of <code>dynamic_cast</code>, which
-    works on references, can be used on pointers through the ugly expression
-    &amp;<code>dynamic_cast&lt;T&amp;&gt;(*p)</code>, which causes undefined
-    behavior if <code>p</code> is <code>0</code>. The <code>polymorphic_cast</code>
-    template performs a <code>dynamic_cast</code> on a pointer, and throws an
-    exception if the <code>dynamic_cast</code> returns 0.</p>
-
-    <p>A <code>polymorphic_downcast</code> should be used for
-    downcasts that you are certain should succeed.  Error checking is
-    only performed in translation units where <code>NDEBUG</code> is
-    not defined, via
-<pre>  assert( dynamic_cast&lt;Derived&gt;(x) == x )
-</pre> where <code>x</code> is the source pointer.  This approach
-    ensures that not only is a non-zero pointer returned, but also
-    that it is correct in the presence of multiple inheritance.
-    Attempts to crosscast using <code>polymorphic_downcast</code> will
-    fail to compile.
-    <b>Warning:</b> Because <code>polymorphic_downcast</code> uses assert(), it
-    violates the One Definition Rule (ODR) if NDEBUG is inconsistently
-    defined across translation units. [See ISO Std 3.2]
-</p><p>
-    For crosscasts, or when the success of a cast can only be known at
-    runtime, or when efficiency is not important,
-    <code>polymorphic_cast</code> is preferred. </p>
-
-    <p>The C++ built-in <code>dynamic_cast</code> must be used to cast references
-    rather than pointers. It is also the only cast that can be used to check
-    whether a given interface is supported; in that case a return of 0 isn't
-    an error condition.</p>
-
-    <h3>polymorphic_cast and polymorphic_downcast synopsis</h3>
-
-    <blockquote>
-<pre>namespace boost {
-
-template &lt;class Derived, class Base&gt;
-inline Derived polymorphic_cast(Base* x);
-// Throws: std::bad_cast if ( dynamic_cast&lt;Derived&gt;(x) == 0 )
-// Returns: dynamic_cast&lt;Derived&gt;(x)
-
-template &lt;class Derived, class Base&gt;
-inline Derived polymorphic_downcast(Base* x);
-// Effects: assert( dynamic_cast&lt;Derived&gt;(x) == x );
-// Returns: static_cast&lt;Derived&gt;(x)
-
-}
-</pre>
-    </blockquote>
-
-    <h3>polymorphic_downcast example</h3>
-
-    <blockquote>
-<pre>#include &lt;boost/cast.hpp&gt;
-...
-class Fruit { public: virtual ~Fruit(){}; ... };
-class Banana : public Fruit { ... };
-...
-void f( Fruit * fruit ) {
-// ... logic which leads us to believe it is a Banana
-  Banana * banana = boost::polymorphic_downcast&lt;Banana*&gt;(fruit);
-  ...
-</pre>
-    </blockquote>
-
-    <h3>History</h3>
-
-    <p><code>polymorphic_cast</code> was suggested by Bjarne Stroustrup in "The C++
-    Programming Language".<br>
-     <code>polymorphic_downcast</code> was contributed by <a href=
-    "http://www.boost.org/people/dave_abrahams.htm">Dave Abrahams</a>.<code><br>
-     An old
-     numeric_cast</code> that was contributed by <a href=
-    "http://www.boost.org/people/kevlin_henney.htm">Kevlin Henney</a> is now superseeded by the <a href="../numeric/conversion/doc/html/index.html">Boost Numeric Conversion Library</a></p>
-    <hr>
-
-    <p>Revised
-    <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan
-                    -->June 23, 2005<!--webbot bot="Timestamp" endspan i-checksum="30348"
-                    --></p>
-
-    <p>&copy; Copyright boost.org 1999. Permission to copy, use, modify, sell
-    and distribute this document is granted provided this copyright notice
-    appears in all copies. This document is provided "as is" without express
-    or implied warranty, and with no claim as to its suitability for any
-    purpose.</p>
-  </body>
-</html>

doc/Jamfile.v2

@@ -1,16 +1,38 @@
-# Copyright Antony Polukhin 2011. 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)
+#   Copyright (c) 2016 Mikhail Maximov <vigorous.activity -at- 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)
+
+project doc/conversion ;
 
 using quickbook ;
-import boostbook : boostbook ;
+import boostbook ;
 
-xml lexical_cast : lexical_cast.qbk ;
-boostbook standalone 
-    : 
-    lexical_cast 
+xml conversion : conversion.qbk ;
+boostbook standalone
+    :
+        conversion
     :
         <xsl:param>boost.root=../../../..
-        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/doc/html
-    ;
+        # File name of HTML output:
+        <xsl:param>root.filename=conversion
+        # 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=2
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=2
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=0
 
+        <xsl:param>generate.manifest=0
+     ;
+
+###############################################################################
+alias boostdoc : conversion ;
+explicit boostdoc ;
+alias boostrelease ;
+explicit boostrelease ;

doc/conversion.qbk

@@ -0,0 +1,215 @@
+[/
+    Copyright 2016 Mikhail Maximov.
+    Copyright Antony Polukhin, 2020-2026.
+
+    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>)
+]
+
+[article The Conversion Library
+    [quickbook 1.6]
+    [compatibility-mode 1.5]
+    [id conversion]
+    [version 1.7]
+    [authors [Stroustrup, Bjarne], [Abrahams, Dave], [Rasin, Boris], [Polukhin, Antony]]
+    [copyright 2001 Beman Dawes, 2014-2026 Antony Polukhin]
+    [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])
+    ]
+    [source-mode c++]
+]
+
+[/ QuickBook Document version 1.5 ]
+[/ Dec, 2016 ]
+
+[section Description]
+
+The Conversion Library improves program safety and clarity by performing
+otherwise messy conversions. It includes cast-style function templates designed 
+to complement the C++ Standard's built-in casts.
+
+To reduce coupling, the Boost Conversion Library is supplied by several headers:
+
+# The [@boost:boost/polymorphic_cast.hpp boost/polymorphic_cast.hpp] header
+  provides [link polymorphic_cast `polymorphic_cast<>`] and
+  [link polymorphic_downcast `polymorphic_downcast<>`]
+  to perform safe casting between polymorphic types.
+# The [@boost:boost/polymorphic_pointer_cast.hpp boost/polymorphic_pointer_cast.hpp] header
+  provides [link polymorphic_pointer_cast `polymorphic_pointer_cast<>`] and
+  [link polymorphic_pointer_cast `polymorphic_pointer_downcast<>`]
+# The [@boost:boost/implicit_cast.hpp boost/implicit_cast.hpp] header provides `implicit_cast<>` 
+  to perform implicit casts only (no down-cast, no void*->T*, no U->T if T has only explicit constructors for U).
+
+[endsect]
+
+[section Polymorphic casts]
+Pointers to polymorphic objects (objects of classes which define at
+least one virtual function) are sometimes downcast or crosscast.
+Downcasting means casting from a base class to a derived class.
+Crosscasting means casting across an inheritance hierarchy diagram, such
+as from one base to the other in a [^Y] diagram hierarchy.
+
+Such casts can be done with old-style casts, but this approach is
+never to be recommended. Old-style casts are sorely lacking in type
+safety, suffer poor readability, and are difficult to locate with search
+tools.
+
+[#polymorphic_downcast]
+[section polymorphic_downcast]
+
+The C++ built-in `static_cast` can be used for efficiently
+downcasting pointers to polymorphic objects, but provides no error
+detection for the case where the pointer being cast actually points to
+the wrong derived class. The `polymorphic_downcast` template retains
+the efficiency of `static_cast` for non-debug compilations, but for
+debug compilations adds safety via an `assert()` that a `dynamic_cast`
+succeeds.
+
+A `polymorphic_downcast` should be used for
+downcasts that you are certain should succeed. Error checking is
+only performed in translation units where `NDEBUG` is
+not defined, via
+```
+    assert( dynamic_cast<Derived>(x) == x )
+```
+where `x` is the source pointer.  This approach
+ensures that not only is a non-zero pointer returned, but also
+that it is correct in the presence of multiple inheritance.
+Attempts to crosscast using `polymorphic_downcast` will
+fail to compile.
+
+[warning Because `polymorphic_downcast` uses `assert()`, it
+violates the One Definition Rule (ODR) if `NDEBUG` is inconsistently
+defined across translation units. See ISO Std 3.2]
+
+[h4 Example:]
+```
+    #include <boost/polymorphic_cast.hpp>
+    ...
+    class Fruit { public: virtual ~Fruit(){}; ... };
+    class Banana : public Fruit { ... };
+    ...
+    void f( Fruit * fruit ) {
+      // ... logic which leads us to believe it is a Banana
+      Banana * banana = boost::polymorphic_downcast<Banana*>(fruit);
+      ...
+    }
+```
+[endsect]
+
+[#polymorphic_cast]
+[section polymorphic_cast]
+
+The C++ built-in `dynamic_cast` can be used for downcasts and
+crosscasts of pointers to polymorphic objects, but error notification in
+the form of a returned value of 0 is inconvenient to test, or worse yet,
+easy to forget to test. The throwing form of `dynamic_cast`, which
+works on references, can be used on pointers through the ugly expression
+`&dynamic_cast<T&>(*p)`, which causes undefined
+behavior if `p` is `0`. The `polymorphic_cast`
+template performs a `dynamic_cast` on a pointer, and throws an
+exception if the `dynamic_cast` returns 0.
+
+For crosscasts, or when the success of a cast can only be known at runtime, 
+or when efficiency is not important, `polymorphic_cast` is preferred.
+
+The C++ built-in `dynamic_cast` must be used to cast references rather than pointers.
+It is also the only cast that can be used to check whether a given interface is supported; in that case a return of 0 isn't an error condition.
+
+[endsect]
+
+
+[#polymorphic_pointer_cast]
+[section polymorphic_pointer_cast]
+While `polymorphic_downcast` and `polymorphic_cast` work with built-in pointer types only,
+`polymorphic_pointer_downcast` and `polymorphic_pointer_cast` are more generic versions
+with support for any pointer type for which the following expressions would be valid:
+
+For `polymorphic_pointer_downcast`:
+```
+    static_pointer_cast<Derived>(p);
+    dynamic_pointer_cast<Derived>(p);
+```
+For `polymorphic_pointer_cast`:
+```
+    dynamic_pointer_cast<Derived>(p);
+    !p; // conversion to bool with negation
+```
+
+This includes C++ built-in pointers, `std::shared_ptr`,
+`boost::shared_ptr`, `boost::intrusive_ptr`, etc.
+
+
+[h4 Example:]
+```
+    #include <boost/polymorphic_pointer_cast.hpp>
+
+    class Fruit { public: virtual ~Fruit(){} };
+    class Banana : public Fruit {};
+
+    // Use one of these:
+    using FruitPtr = Fruit*;
+    using FruitPtr = std::shared_ptr<Fruit>;
+    using FruitPtr = boost::shared_ptr<Fruit>;
+    using FruitPtr = boost::intrusive_ptr<Fruit>;
+
+    void f(FruitPtr fruit) {
+      // ... logic which leads us to believe it is a banana
+      auto banana = boost::polymorphic_pointer_downcast<Banana>(fruit);
+      ...
+    }
+```
+
+[endsect]
+
+[endsect]
+
+[section Synopsis]
+```
+    namespace boost {
+
+    // Throws: std::bad_cast if ( dynamic_cast<Derived>(x) == 0 )
+    // Returns: dynamic_cast<Derived>(x)
+    template <class Derived, class Base>
+    constexpr Derived polymorphic_cast(Base* x);
+
+    // Effects: assert( dynamic_cast<Derived>(x) == x );
+    // Returns: static_cast<Derived>(x)
+    template <class Derived, class Base>
+    constexpr Derived polymorphic_downcast(Base* x);
+
+    // Effects: assert( dynamic_cast<Derived>(&x) == &x );
+    // Returns: static_cast<Derived>(x)
+    template <class Derived, class Base>
+    constexpr Derived polymorphic_downcast(Base& x);
+
+    // Throws: std::bad_cast if ( dynamic_pointer_cast<Derived>(x) == 0 )
+    // Returns: dynamic_pointer_cast<Derived>(x)
+    template <class Derived, class Base>
+    inline auto polymorphic_pointer_cast(Base x);
+
+    // Effects: assert( dynamic_pointer_cast<Derived>(x) == x );
+    // Returns: static_pointer_cast<Derived>(x)
+    template <class Derived, class Base>
+    inline auto polymorphic_pointer_downcast(Base x);
+
+    }
+```
+[endsect]
+
+
+[section History]
+`polymorphic_cast` was suggested by Bjarne Stroustrup in "The C++ Programming Language".
+
+`polymorphic_downcast` was contributed by [@http://www.boost.org/people/dave_abrahams.htm Dave Abrahams].
+
+`polymorphic_pointer_downcast` was contributed by [@http://www.boost.org/people/boris_rasin.htm Boris Rasin]
+and `polymorphic_pointer_cast` by Antony Polukhin.
+
+`polymorphic_downcast` overload for references was contributed by Julien Delacroix.
+
+An old `numeric_cast` that was contributed by [@http://www.boost.org/people/kevlin_henney.htm Kevlin Henney]
+is now superseded by the [@boost:numeric_conversion/doc/html/html/boost_numericconversion/improved_numeric_cast__.html Boost Numeric Conversion Library]
+[endsect]

doc/lexical_cast.qbk

@@ -1,620 +0,0 @@
-[library Boost.Lexical_Cast
-    [quickbook 1.5]
-    [version 1.0]
-    [copyright 2000-2005 Kevlin Henney]
-    [copyright 2006-2010 Alexander Nasonov]
-    [copyright 2011 Antony Polukhin]
-    [category String and text processing]
-    [category Miscellaneous]
-    [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])
-    ]
-]
-
-[def __numericcast__  [@boost:libs/numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html `boost::numeric_cast`]]
-[def __proposallong__ [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1973.html Lexical Conversion Library Proposal for TR2, N1973 by Kevlin Henney and Beman Dawes]]
-[def __proposalshort__ [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1973.html Lexical Conversion Library Proposal for TR2, N1973]]
-
-[section Motivation]
-Sometimes a value must be converted to a literal text form, such as an [c++] `int` represented as a `std::string`, or vice-versa, when a `std::string` is interpreted as an `int`. Such examples are common when converting between data types internal to a program and representation external to a program, such as windows and configuration files.
-
-The standard C and C++ libraries offer a number of facilities for performing such conversions. However, they vary with their ease of use, extensibility, and safety.
-
-For instance, there are a number of limitations with the family of standard C functions typified by `atoi`:
-
-* Conversion is supported in one direction only: from text to internal data type. Converting the other way using the C library requires either the inconvenience and compromised safety of the `sprintf` function, or the loss of portability associated with non-standard functions such as `itoa`.
-* The range of types supported is only a subset of the built-in numeric types, namely `int`, `long`, and `double`.
-* The range of types cannot be extended in a uniform manner. For instance, conversion from string representation to complex or rational.
-
-The standard C functions typified by `strtol` have the same basic limitations, but offer finer control over the conversion process. However, for the common case such control is often either not required or not used. The `scanf` family of functions offer even greater control, but also lack safety and ease of use.
-
-The standard C++ library offers `stringstream` for the kind of in-core formatting being discussed. It offers a great deal of control over the formatting and conversion of I/O to and from arbitrary types through text. However, for simple conversions direct use of `stringstream` can be either clumsy (with the introduction of extra local variables and the loss of infix-expression convenience) or obscure (where `stringstream` objects are created as temporary objects in an expression). Facets provide a comprehensive concept and facility for controlling textual representation, but their perceived complexity and high entry level requires an extreme degree of involvement for simple conversions, and excludes all but a few programmers.
-
-The `lexical_cast` function template offers a convenient and consistent form for supporting common conversions to and from arbitrary types when they are represented as text. The simplification it offers is in expression-level convenience for such conversions. For more involved conversions, such as where precision or formatting need tighter control than is offered by the default behavior of `lexical_cast`, the conventional `std::stringstream` approach is recommended. Where the conversions are numeric to numeric, __numericcast__ may offer more reasonable behavior than `lexical_cast`.
-
-For a good discussion of the options and issues involved in string-based formatting, including comparison of `stringstream`, `lexical_cast`, and others, see Herb Sutter's article, [@http://www.gotw.ca/publications/mill19.htm The String Formatters of Manor Farm]. Also, take a look at the [link boost_lexical_cast.performance Performance] section. 
-[endsect]
-
-[section Examples]
-The following example treats command line arguments as a sequence of numeric data:
-``
-    int main(int argc, char * argv[])
-    {
-        using boost::lexical_cast;
-        using boost::bad_lexical_cast;
-
-        std::vector<short> args;
-
-        while(*++argv)
-        {
-            try
-            {
-                args.push_back(lexical_cast<short>(*argv));
-            }
-            catch(bad_lexical_cast &)
-            {
-                args.push_back(0);
-            }
-        }
-        ...
-    }
-``
-The following example uses numeric data in a string expression:
-``
-    void log_message(const std::string &);
-
-    void log_errno(int yoko)
-    {
-        log_message("Error " + boost::lexical_cast<std::string>(yoko) + ": " + strerror(yoko));
-    }
-``
-[endsect]
-
-[section Synopsis]
-Library features defined in [@boost:boost/lexical_cast.hpp boost/lexical_cast.hpp]:
-``
-    namespace boost
-    {
-        class bad_lexical_cast;
-        template<typename Target, typename Source>
-          Target lexical_cast(const Source& arg);
-    }
-``
-
-[section lexical_cast]
-``
-    template<typename Target, typename Source>
-      Target lexical_cast(const Source& arg);
-``
-Returns the result of streaming arg into a standard library string-based stream and then out as a Target object. Where Target is either `std::string` or `std::wstring`, stream extraction takes the whole content of the string, including spaces, rather than relying on the default `operator>>` behavior. If the conversion is unsuccessful, a `bad_lexical_cast` exception is thrown.
-
-The requirements on the argument and result types are:
-
-* Source is OutputStreamable, meaning that an `operator<<` is defined that takes a `std::ostream` or `std::wostream` object on the left hand side and an instance of the argument type on the right.
-* Target is InputStreamable, meaning that an `operator>>` is defined that takes a `std::istream` or `std::wistream` object on the left hand side and an instance of the result type on the right.
-* Target is CopyConstructible [20.1.3].
-* Target is DefaultConstructible, meaning that it is possible to default-initialize an object of that type [8.5, 20.1.4].
-
-The character type of the underlying stream is assumed to be char unless either the Source or the Target requires wide-character streaming, in which case the underlying stream uses `wchar_t`. Source types that require wide-character streaming are `wchar_t`, `wchar_t *`, and `std::wstring`. Target types that require wide-character streaming are `wchar_t` and `std::wstring`.
-
-Where a higher degree of control is required over conversions, `std::stringstream` and `std::wstringstream` offer a more appropriate path. Where non-stream-based conversions are required, `lexical_cast` is the wrong tool for the job and is not special-cased for such scenarios.
-[endsect]
-
-[section bad_lexical_cast]
-``
-    class bad_lexical_cast : public std::bad_cast
-    {
-    public:
-        ... // same member function interface as std::exception
-    };
-``
-Exception used to indicate runtime lexical_cast failure.
-[endsect]
-
-[endsect]
-
-[section Frequently Asked Questions]
-
-* [*Question:]    Why does `lexical_cast<int8_t>("127")` throw `bad_lexical_cast`?
-  * [*Answer:]      The type `int8_t` is a `typedef` to `char` or `signed char`. Lexical conversion to these types is simply reading a byte from source but since the source has more than one byte, the exception is thrown. 
-Please use other integer types such as `int` or `short int`. If bounds checking is important, you can also 
-call __numericcast__: 
-`numeric_cast<int8_t>(lexical_cast<int>("127"));`
-
-[pre
-]
-
-* [*Question:]    Why does `lexical_cast<unsigned char>("127")` throw `bad_lexical_cast`?
-  * [*Answer:]      Lexical conversion to any char type is simply reading a byte from source. But since the source has more than one byte, the exception is thrown. 
-Please use other integer types such as `int` or `short int`. If bounds checking is important, you can also 
-call __numericcast__: 
-`numeric_cast<unsigned char>(lexical_cast<int>("127"));`
-
-[pre
-]
-
-* [*Question:]    What does `lexical_cast<std::string>` of an `int8_t` or `uint8_t` not do what I expect?
-  * [*Answer:]      As above, note that int8_t and uint8_t are actually chars and are formatted as such. To avoid 
-this, cast to an integer type first: `lexical_cast<std::string>(static_cast<int>(n));`
-
-[pre
-]
-
-* [*Question:]    The implementation always resets the `ios_base::skipws` flag of an underlying stream object. 
-It breaks my `operator>>` that works only in presence of this flag. Can you remove code that resets the flag?
-  * [*Answer:]      May be in a future version. There is no requirement in 
-__proposallong__ to reset the flag but 
-remember that __proposalshort__ is not yet accepted by the committee. By the way, it's a great opportunity to 
-make your `operator>>` conform to the standard.
-Read a good C++ book, study `std::sentry` and [@boost:libs/io/doc/ios_state.html `ios_state_saver`].
-
-[pre
-]
-
-* [*Question:]    Why `std::cout << boost::lexical_cast<unsigned int>("-1");` does not throw, but outputs 4294967295?
-  * [*Answer:]      `boost::lexical_cast` has the behavior of `std::stringstream`, which uses `num_get` functions of 
-`std::locale` to convert numbers. If we look at the Programming languages — C++, we'll see, that `num_get` uses 
-the rules of `scanf` for conversions. And in the C99 standard for unsigned input value minus sign is optional, so 
-if a negative number is read, no errors will arise and the result will be the two's complement.
-
-[pre
-]
-
-* [*Question:]    Why `boost::lexical_cast<int>(L'A');` outputs 65 and `boost::lexical_cast<wchar_t>(L"65");` does not throw?
-  * [*Answer:]      If you are using an old version of Visual Studio or compile code with /Zc:wchar_t- flag, 
-`boost::lexical_cast` sees single `wchar_t` character as `unsigned short`. It is not a `boost::lexical_cast` mistake, but a 
-limitation of compiler options that you use.
-
-[endsect]
-
-[section Changes]
-* [*boost 1.49.0 :]
-  
-    * Restored work with typedefed wchar_t (compilation flag /Zc:wchar_t- for Visual Studio). 
-    * Better performance and less memory usage for `boost::container::basic_string` conversions.
-    
-* [*boost 1.48.0 :]
-  
-    * Added code to work with Inf and NaN on any platform.    
-    * Better performance and less memory usage for conversions to float type (and to double type, if `sizeof(double) < sizeof(long double)`).
-  
-* [*boost 1.47.0 :]
-
-    * Optimizations for "C" and other locales without number grouping.
-    * Better performance and less memory usage for unsigned char and signed char conversions.
-    * Better performance and less memory usage for conversions to arithmetic types.
-    * Better performance and less memory usage for conversions from arithmetic type to arithmetic type.
-    * Directly construct Target from Source on some conversions (like conversions from string to string, from char array to string, from char to char and others).
-
-* [*boost 1.34.0 :]
-
-    * Better performance for many combinations of Source and Target types. For more details refer to Alexander Nasonovs article [@http://accu.org/index.php/journals/1375 Fine Tuning for lexical_cast, Overload #74, August 2006] [@http://www.accu.org/var/uploads/journals/overload74.pdf (PDF)].
-
-* [*boost 1.33.0 :]
-
-    * Call-by-const reference for the parameters. This requires partial specialization of class templates, so it doesn't work for MSVC 6, and it uses the original pass by value there.
-    * The MSVC 6 support is deprecated, and will be removed in a future Boost version.
-
-* [*Earlier :]
-
-    * The previous version of lexical_cast used the default stream precision for reading and writing floating-point numbers. For numerics that have a corresponding specialization of `std::numeric_limits`, the current version now chooses a precision to match.
-    * The previous version of lexical_cast did not support conversion to or from any wide-character-based types. For compilers with full language and library support for wide characters, `lexical_cast` now supports conversions from `wchar_t`, `wchar_t *`, and `std::wstring` and to `wchar_t` and `std::wstring`.
-    * The previous version of `lexical_cast` assumed that the conventional stream extractor operators were sufficient for reading values. However, string I/O is asymmetric, with the result that spaces play the role of I/O separators rather than string content. The current version fixes this error for `std::string` and, where supported, `std::wstring`: `lexical_cast<std::string>("Hello, World")` succeeds instead of failing with a `bad_lexical_cast` exception.
-    * The previous version of `lexical_cast` allowed unsafe and meaningless conversions to pointers. The current version now throws a `bad_lexical_cast` for conversions to pointers: `lexical_cast<char *>("Goodbye, World")` now throws an exception instead of causing undefined behavior. 
-
-[endsect]
-
-[section Performance]
-
-In most cases `boost::lexical_cast` is faster than `scanf`, `printf`, `std::stringstream`. For more detailed info you can look at the tables below.
-
-[section Tests description]
-All the tests measure execution speed in milliseconds for 10000 iterations of the following code blocks:
-[table:legend Tests source code
-[[Test name] [Code]]
-[[lexical_cast]
-  [``
-            _out = boost::lexical_cast<OUTTYPE>(_in);
-  ``]
-  ]
-[[std::stringstream with construction]
-  [``
-            std::stringstream ss;
-            ss << _in;
-            if (ss.fail()) throw std::logic_error(descr);
-            ss >> _out;
-            if (ss.fail()) throw std::logic_error(descr);
-  ``]
-  ]
-[[std::stringstream without construction]
-  [``
-            ss << _in; // ss is an instance of std::stringstream
-            if (ss.fail()) throw std::logic_error(descr);
-            ss >> _out;
-            if (ss.fail()) throw std::logic_error(descr);
-            /* reseting std::stringstream to use it again */
-            ss.str(std::string());
-            ss.clear();
-  ``]
-  ]
-[[scanf/printf]
-  [``
-            typename OUTTYPE::value_type buffer[500];
-            sprintf( (char*)buffer, conv, _in);
-            _out = buffer;
-  ``]
-  ]
-]
-Fastest results are highlitened with "!!! *x* !!!". 
-Do not use this results to compare compilers, because tests were taken on different hardware.
-
-[endsect]
-
-[/ BEGIN of section, generated by performance measuring program ]
-
-[section clang-linux-2.8][table:id Performance Table (clang-linux-2.8)
-[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
-[[ string->char ][ !!! *<1* !!! ][ 148 ][ 14 ][ 12 ]]
-[[ string->signed char ][ !!! *<1* !!! ][ 97 ][ 8 ][ 7 ]]
-[[ string->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ 13 ]]
-[[ string->int ][ !!! *4* !!! ][ 102 ][ 19 ][ 15 ]]
-[[ string->short ][ !!! *4* !!! ][ 105 ][ 20 ][ 15 ]]
-[[ string->long int ][ !!! *4* !!! ][ 105 ][ 19 ][ 15 ]]
-[[ string->long long ][ !!! *4* !!! ][ 115 ][ 19 ][ 14 ]]
-[[ string->unsigned int ][ !!! *4* !!! ][ 102 ][ 18 ][ 14 ]]
-[[ string->unsigned short ][ !!! *4* !!! ][ 101 ][ 19 ][ 15 ]]
-[[ string->unsigned long int ][ !!! *3* !!! ][ 107 ][ 20 ][ 14 ]]
-[[ string->unsigned long long ][ !!! *3* !!! ][ 103 ][ 20 ][ 14 ]]
-[[ string->bool ][ !!! *<1* !!! ][ 97 ][ 16 ][ 8 ]]
-[[ string->float ][ !!! *21* !!! ][ 170 ][ 61 ][ 32 ]]
-[[ string->double ][ !!! *18* !!! ][ 206 ][ 93 ][ 58 ]]
-[[ string->long double ][ 135 ][ 221 ][ 94 ][ !!! *57* !!! ]]
-[[ char->string ][ !!! *7* !!! ][ 100 ][ 17 ][ 13 ]]
-[[ unsigned char->string ][ !!! *7* !!! ][ 99 ][ 18 ][ 16 ]]
-[[ signed char->string ][ !!! *7* !!! ][ 101 ][ 17 ][ 12 ]]
-[[ int->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 15 ]]
-[[ short->string ][ !!! *13* !!! ][ 112 ][ 24 ][ 18 ]]
-[[ long int->string ][ !!! *13* !!! ][ 119 ][ 23 ][ 17 ]]
-[[ long long->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 18 ]]
-[[ unsigned int->string ][ !!! *14* !!! ][ 113 ][ 24 ][ 17 ]]
-[[ unsigned short->string ][ !!! *13* !!! ][ 108 ][ 24 ][ 17 ]]
-[[ unsigned long int->string ][ !!! *13* !!! ][ 109 ][ 24 ][ 16 ]]
-[[ unsigned long long->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 17 ]]
-[[ bool->string ][ !!! *7* !!! ][ 105 ][ 24 ][ 12 ]]
-[[ float->string ][ 70 ][ 192 ][ 94 ][ !!! *49* !!! ]]
-[[ double->string ][ 106 ][ 217 ][ 122 ][ !!! *76* !!! ]]
-[[ long double->string ][ 120 ][ 219 ][ 123 ][ !!! *80* !!! ]]
-[[ char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 8 ]]
-[[ char*->signed char ][ !!! *2* !!! ][ 87 ][ 10 ][ 7 ]]
-[[ char*->unsigned char ][ !!! *3* !!! ][ 90 ][ 10 ][ 13 ]]
-[[ char*->int ][ !!! *6* !!! ][ 107 ][ 21 ][ 15 ]]
-[[ char*->short ][ !!! *6* !!! ][ 110 ][ 19 ][ 14 ]]
-[[ char*->long int ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
-[[ char*->long long ][ !!! *7* !!! ][ 104 ][ 20 ][ 15 ]]
-[[ char*->unsigned int ][ !!! *6* !!! ][ 101 ][ 20 ][ 15 ]]
-[[ char*->unsigned short ][ !!! *7* !!! ][ 100 ][ 20 ][ 14 ]]
-[[ char*->unsigned long int ][ !!! *6* !!! ][ 105 ][ 22 ][ 15 ]]
-[[ char*->unsigned long long ][ !!! *7* !!! ][ 106 ][ 21 ][ 14 ]]
-[[ char*->bool ][ !!! *2* !!! ][ 99 ][ 18 ][ 7 ]]
-[[ char*->float ][ !!! *22* !!! ][ 159 ][ 67 ][ 33 ]]
-[[ char*->double ][ !!! *20* !!! ][ 205 ][ 94 ][ 58 ]]
-[[ char*->long double ][ 140 ][ 214 ][ 95 ][ !!! *58* !!! ]]
-[[ unsigned char*->char ][ !!! *2* !!! ][ 92 ][ 9 ][ 7 ]]
-[[ unsigned char*->signed char ][ !!! *2* !!! ][ 89 ][ 10 ][ 7 ]]
-[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 89 ][ 10 ][ 14 ]]
-[[ unsigned char*->int ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
-[[ unsigned char*->short ][ !!! *6* !!! ][ 106 ][ 21 ][ 14 ]]
-[[ unsigned char*->long int ][ !!! *6* !!! ][ 105 ][ 19 ][ 14 ]]
-[[ unsigned char*->long long ][ !!! *6* !!! ][ 106 ][ 20 ][ 15 ]]
-[[ unsigned char*->unsigned int ][ !!! *7* !!! ][ 105 ][ 19 ][ 14 ]]
-[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
-[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 106 ][ 19 ][ 14 ]]
-[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 21 ][ 15 ]]
-[[ unsigned char*->bool ][ !!! *2* !!! ][ 102 ][ 18 ][ 7 ]]
-[[ unsigned char*->float ][ !!! *23* !!! ][ 160 ][ 66 ][ 32 ]]
-[[ unsigned char*->double ][ !!! *20* !!! ][ 201 ][ 95 ][ 58 ]]
-[[ unsigned char*->long double ][ 144 ][ 221 ][ 95 ][ !!! *60* !!! ]]
-[[ unsigned char*->string ][ !!! *12* !!! ][ 104 ][ 23 ][ --- ]]
-[[ signed char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 7 ]]
-[[ signed char*->signed char ][ !!! *2* !!! ][ 89 ][ 9 ][ 7 ]]
-[[ signed char*->unsigned char ][ !!! *2* !!! ][ 89 ][ 10 ][ 13 ]]
-[[ signed char*->int ][ !!! *6* !!! ][ 106 ][ 19 ][ 15 ]]
-[[ signed char*->short ][ !!! *6* !!! ][ 107 ][ 20 ][ 15 ]]
-[[ signed char*->long int ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
-[[ signed char*->long long ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
-[[ signed char*->unsigned int ][ !!! *6* !!! ][ 101 ][ 19 ][ 15 ]]
-[[ signed char*->unsigned short ][ !!! *6* !!! ][ 101 ][ 19 ][ 16 ]]
-[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 105 ][ 22 ][ 15 ]]
-[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 21 ][ 15 ]]
-[[ signed char*->bool ][ !!! *2* !!! ][ 100 ][ 18 ][ 7 ]]
-[[ signed char*->float ][ !!! *23* !!! ][ 161 ][ 62 ][ 32 ]]
-[[ signed char*->double ][ !!! *20* !!! ][ 207 ][ 102 ][ 57 ]]
-[[ signed char*->long double ][ 144 ][ 216 ][ 96 ][ !!! *63* !!! ]]
-[[ signed char*->string ][ !!! *12* !!! ][ 104 ][ 23 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 110 ][ 22 ][ --- ]]
-[[ float->double ][ !!! *<1* !!! ][ 223 ][ 113 ][ --- ]]
-[[ double->double ][ !!! *<1* !!! ][ 227 ][ 111 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 231 ][ 122 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 229 ][ 121 ][ --- ]]
-[[ char->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
-[[ char->signed char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
-[[ unsigned char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
-[[ signed char->char ][ !!! *<1* !!! ][ 91 ][ 9 ][ --- ]]
-]
-[endsect]
-[section gcc-4.4][table:id Performance Table (gcc-4.4)
-[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
-[[ string->char ][ !!! *<1* !!! ][ 90 ][ 7 ][ 7 ]]
-[[ string->signed char ][ !!! *<1* !!! ][ 88 ][ 7 ][ 8 ]]
-[[ string->unsigned char ][ !!! *<1* !!! ][ 88 ][ 8 ][ 14 ]]
-[[ string->int ][ !!! *3* !!! ][ 103 ][ 18 ][ 15 ]]
-[[ string->short ][ !!! *3* !!! ][ 105 ][ 20 ][ 15 ]]
-[[ string->long int ][ !!! *3* !!! ][ 101 ][ 18 ][ 16 ]]
-[[ string->long long ][ !!! *3* !!! ][ 101 ][ 18 ][ 15 ]]
-[[ string->unsigned int ][ !!! *3* !!! ][ 98 ][ 23 ][ 14 ]]
-[[ string->unsigned short ][ !!! *3* !!! ][ 100 ][ 17 ][ 14 ]]
-[[ string->unsigned long int ][ !!! *3* !!! ][ 100 ][ 21 ][ 15 ]]
-[[ string->unsigned long long ][ !!! *3* !!! ][ 99 ][ 19 ][ 15 ]]
-[[ string->bool ][ !!! *<1* !!! ][ 95 ][ 16 ][ 8 ]]
-[[ string->float ][ !!! *13* !!! ][ 160 ][ 61 ][ 33 ]]
-[[ string->double ][ !!! *14* !!! ][ 206 ][ 93 ][ 59 ]]
-[[ string->long double ][ 128 ][ 217 ][ 96 ][ !!! *61* !!! ]]
-[[ char->string ][ !!! *7* !!! ][ 100 ][ 17 ][ 12 ]]
-[[ unsigned char->string ][ !!! *7* !!! ][ 109 ][ 17 ][ 16 ]]
-[[ signed char->string ][ !!! *7* !!! ][ 99 ][ 17 ][ 12 ]]
-[[ int->string ][ !!! *13* !!! ][ 110 ][ 21 ][ 15 ]]
-[[ short->string ][ !!! *14* !!! ][ 110 ][ 22 ][ 17 ]]
-[[ long int->string ][ !!! *14* !!! ][ 109 ][ 21 ][ 16 ]]
-[[ long long->string ][ !!! *13* !!! ][ 114 ][ 20 ][ 17 ]]
-[[ unsigned int->string ][ !!! *13* !!! ][ 109 ][ 23 ][ 15 ]]
-[[ unsigned short->string ][ !!! *14* !!! ][ 109 ][ 23 ][ 17 ]]
-[[ unsigned long int->string ][ !!! *13* !!! ][ 112 ][ 23 ][ 16 ]]
-[[ unsigned long long->string ][ !!! *14* !!! ][ 109 ][ 21 ][ 17 ]]
-[[ bool->string ][ !!! *7* !!! ][ 108 ][ 23 ][ 11 ]]
-[[ float->string ][ 63 ][ 185 ][ 92 ][ !!! *50* !!! ]]
-[[ double->string ][ 106 ][ 216 ][ 116 ][ !!! *75* !!! ]]
-[[ long double->string ][ 118 ][ 219 ][ 119 ][ !!! *80* !!! ]]
-[[ char*->char ][ !!! *1* !!! ][ 93 ][ 9 ][ 9 ]]
-[[ char*->signed char ][ !!! *1* !!! ][ 92 ][ 9 ][ 9 ]]
-[[ char*->unsigned char ][ !!! *1* !!! ][ 92 ][ 9 ][ 14 ]]
-[[ char*->int ][ !!! *4* !!! ][ 107 ][ 19 ][ 15 ]]
-[[ char*->short ][ !!! *5* !!! ][ 109 ][ 19 ][ 15 ]]
-[[ char*->long int ][ !!! *4* !!! ][ 113 ][ 19 ][ 15 ]]
-[[ char*->long long ][ !!! *4* !!! ][ 108 ][ 20 ][ 15 ]]
-[[ char*->unsigned int ][ !!! *4* !!! ][ 106 ][ 19 ][ 15 ]]
-[[ char*->unsigned short ][ !!! *4* !!! ][ 106 ][ 18 ][ 15 ]]
-[[ char*->unsigned long int ][ !!! *4* !!! ][ 103 ][ 22 ][ 15 ]]
-[[ char*->unsigned long long ][ !!! *4* !!! ][ 105 ][ 20 ][ 15 ]]
-[[ char*->bool ][ !!! *1* !!! ][ 104 ][ 18 ][ 8 ]]
-[[ char*->float ][ !!! *15* !!! ][ 164 ][ 62 ][ 33 ]]
-[[ char*->double ][ !!! *16* !!! ][ 203 ][ 97 ][ 58 ]]
-[[ char*->long double ][ 132 ][ 223 ][ 98 ][ !!! *60* !!! ]]
-[[ unsigned char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 8 ]]
-[[ unsigned char*->signed char ][ !!! *2* !!! ][ 92 ][ 10 ][ 8 ]]
-[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 91 ][ 9 ][ 14 ]]
-[[ unsigned char*->int ][ !!! *6* !!! ][ 106 ][ 20 ][ 15 ]]
-[[ unsigned char*->short ][ !!! *6* !!! ][ 106 ][ 21 ][ 15 ]]
-[[ unsigned char*->long int ][ !!! *6* !!! ][ 111 ][ 19 ][ 15 ]]
-[[ unsigned char*->long long ][ !!! *6* !!! ][ 107 ][ 20 ][ 15 ]]
-[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 105 ][ 19 ][ 15 ]]
-[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 103 ][ 18 ][ 15 ]]
-[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 106 ][ 22 ][ 14 ]]
-[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 105 ][ 20 ][ 14 ]]
-[[ unsigned char*->bool ][ !!! *2* !!! ][ 106 ][ 18 ][ 8 ]]
-[[ unsigned char*->float ][ !!! *15* !!! ][ 167 ][ 68 ][ 33 ]]
-[[ unsigned char*->double ][ !!! *17* !!! ][ 203 ][ 99 ][ 58 ]]
-[[ unsigned char*->long double ][ 129 ][ 216 ][ 97 ][ !!! *61* !!! ]]
-[[ unsigned char*->string ][ !!! *13* !!! ][ 111 ][ 23 ][ --- ]]
-[[ signed char*->char ][ !!! *2* !!! ][ 92 ][ 9 ][ 8 ]]
-[[ signed char*->signed char ][ !!! *2* !!! ][ 91 ][ 9 ][ 8 ]]
-[[ signed char*->unsigned char ][ !!! *2* !!! ][ 91 ][ 9 ][ 14 ]]
-[[ signed char*->int ][ !!! *6* !!! ][ 107 ][ 19 ][ 15 ]]
-[[ signed char*->short ][ !!! *6* !!! ][ 109 ][ 24 ][ 14 ]]
-[[ signed char*->long int ][ !!! *6* !!! ][ 112 ][ 19 ][ 15 ]]
-[[ signed char*->long long ][ !!! *5* !!! ][ 107 ][ 20 ][ 15 ]]
-[[ signed char*->unsigned int ][ !!! *6* !!! ][ 108 ][ 20 ][ 15 ]]
-[[ signed char*->unsigned short ][ !!! *6* !!! ][ 104 ][ 18 ][ 15 ]]
-[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 22 ][ 15 ]]
-[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 20 ][ 15 ]]
-[[ signed char*->bool ][ !!! *2* !!! ][ 104 ][ 18 ][ 8 ]]
-[[ signed char*->float ][ !!! *16* !!! ][ 165 ][ 63 ][ 33 ]]
-[[ signed char*->double ][ !!! *16* !!! ][ 203 ][ 98 ][ 59 ]]
-[[ signed char*->long double ][ 129 ][ 215 ][ 98 ][ !!! *61* !!! ]]
-[[ signed char*->string ][ !!! *13* !!! ][ 109 ][ 21 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 109 ][ 21 ][ --- ]]
-[[ float->double ][ !!! *<1* !!! ][ 221 ][ 102 ][ --- ]]
-[[ double->double ][ !!! *<1* !!! ][ 223 ][ 103 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 231 ][ 115 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 231 ][ 115 ][ --- ]]
-[[ char->unsigned char ][ !!! *<1* !!! ][ 92 ][ 8 ][ --- ]]
-[[ char->signed char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
-[[ unsigned char->char ][ !!! *<1* !!! ][ 88 ][ 7 ][ --- ]]
-[[ signed char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
-]
-[endsect]
-[section gcc-4.5][table:id Performance Table (gcc-4.5)
-[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
-[[ string->char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 7 ]]
-[[ string->signed char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 7 ]]
-[[ string->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ 13 ]]
-[[ string->int ][ !!! *3* !!! ][ 100 ][ 20 ][ 14 ]]
-[[ string->short ][ !!! *3* !!! ][ 106 ][ 20 ][ 14 ]]
-[[ string->long int ][ !!! *3* !!! ][ 100 ][ 18 ][ 14 ]]
-[[ string->long long ][ !!! *9* !!! ][ 100 ][ 18 ][ 15 ]]
-[[ string->unsigned int ][ !!! *3* !!! ][ 97 ][ 20 ][ 14 ]]
-[[ string->unsigned short ][ !!! *3* !!! ][ 102 ][ 17 ][ 14 ]]
-[[ string->unsigned long int ][ !!! *3* !!! ][ 97 ][ 21 ][ 14 ]]
-[[ string->unsigned long long ][ !!! *3* !!! ][ 97 ][ 19 ][ 14 ]]
-[[ string->bool ][ !!! *<1* !!! ][ 95 ][ 16 ][ 7 ]]
-[[ string->float ][ !!! *15* !!! ][ 157 ][ 63 ][ 32 ]]
-[[ string->double ][ !!! *17* !!! ][ 203 ][ 95 ][ 59 ]]
-[[ string->long double ][ 129 ][ 216 ][ 93 ][ !!! *58* !!! ]]
-[[ char->string ][ !!! *8* !!! ][ 100 ][ 17 ][ 10 ]]
-[[ unsigned char->string ][ !!! *8* !!! ][ 96 ][ 18 ][ 16 ]]
-[[ signed char->string ][ !!! *8* !!! ][ 96 ][ 18 ][ 10 ]]
-[[ int->string ][ !!! *14* !!! ][ 105 ][ 22 ][ 15 ]]
-[[ short->string ][ !!! *14* !!! ][ 107 ][ 23 ][ 17 ]]
-[[ long int->string ][ !!! *14* !!! ][ 109 ][ 22 ][ 17 ]]
-[[ long long->string ][ !!! *14* !!! ][ 105 ][ 22 ][ 18 ]]
-[[ unsigned int->string ][ !!! *14* !!! ][ 105 ][ 25 ][ 15 ]]
-[[ unsigned short->string ][ !!! *15* !!! ][ 105 ][ 23 ][ 17 ]]
-[[ unsigned long int->string ][ !!! *14* !!! ][ 109 ][ 24 ][ 17 ]]
-[[ unsigned long long->string ][ !!! *14* !!! ][ 102 ][ 23 ][ 17 ]]
-[[ bool->string ][ !!! *8* !!! ][ 104 ][ 23 ][ 12 ]]
-[[ float->string ][ 66 ][ 181 ][ 92 ][ !!! *49* !!! ]]
-[[ double->string ][ 107 ][ 215 ][ 120 ][ !!! *75* !!! ]]
-[[ long double->string ][ 117 ][ 221 ][ 125 ][ !!! *79* !!! ]]
-[[ char*->char ][ !!! *1* !!! ][ 89 ][ 9 ][ 7 ]]
-[[ char*->signed char ][ !!! *1* !!! ][ 90 ][ 9 ][ 7 ]]
-[[ char*->unsigned char ][ !!! *2* !!! ][ 90 ][ 9 ][ 13 ]]
-[[ char*->int ][ !!! *7* !!! ][ 103 ][ 20 ][ 15 ]]
-[[ char*->short ][ !!! *6* !!! ][ 102 ][ 29 ][ 14 ]]
-[[ char*->long int ][ !!! *7* !!! ][ 101 ][ 20 ][ 15 ]]
-[[ char*->long long ][ !!! *6* !!! ][ 102 ][ 20 ][ 14 ]]
-[[ char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 19 ][ 14 ]]
-[[ char*->unsigned short ][ !!! *6* !!! ][ 101 ][ 18 ][ 14 ]]
-[[ char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 22 ][ 14 ]]
-[[ char*->unsigned long long ][ !!! *6* !!! ][ 101 ][ 21 ][ 14 ]]
-[[ char*->bool ][ !!! *3* !!! ][ 98 ][ 18 ][ 7 ]]
-[[ char*->float ][ !!! *18* !!! ][ 162 ][ 63 ][ 31 ]]
-[[ char*->double ][ !!! *17* !!! ][ 203 ][ 96 ][ 58 ]]
-[[ char*->long double ][ 135 ][ 214 ][ 98 ][ !!! *58* !!! ]]
-[[ unsigned char*->char ][ !!! *2* !!! ][ 87 ][ 9 ][ 7 ]]
-[[ unsigned char*->signed char ][ !!! *2* !!! ][ 87 ][ 9 ][ 7 ]]
-[[ unsigned char*->unsigned char ][ !!! *3* !!! ][ 87 ][ 9 ][ 13 ]]
-[[ unsigned char*->int ][ !!! *6* !!! ][ 105 ][ 20 ][ 14 ]]
-[[ unsigned char*->short ][ !!! *6* !!! ][ 102 ][ 21 ][ 14 ]]
-[[ unsigned char*->long int ][ !!! *6* !!! ][ 101 ][ 20 ][ 14 ]]
-[[ unsigned char*->long long ][ !!! *6* !!! ][ 102 ][ 20 ][ 14 ]]
-[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 19 ][ 14 ]]
-[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 100 ][ 18 ][ 14 ]]
-[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 101 ][ 24 ][ 14 ]]
-[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 100 ][ 20 ][ 14 ]]
-[[ unsigned char*->bool ][ !!! *3* !!! ][ 99 ][ 18 ][ 8 ]]
-[[ unsigned char*->float ][ !!! *17* !!! ][ 164 ][ 64 ][ 32 ]]
-[[ unsigned char*->double ][ !!! *18* !!! ][ 201 ][ 94 ][ 58 ]]
-[[ unsigned char*->long double ][ 133 ][ 217 ][ 95 ][ !!! *60* !!! ]]
-[[ unsigned char*->string ][ !!! *14* !!! ][ 103 ][ 23 ][ --- ]]
-[[ signed char*->char ][ !!! *3* !!! ][ 88 ][ 10 ][ 8 ]]
-[[ signed char*->signed char ][ !!! *2* !!! ][ 87 ][ 10 ][ 7 ]]
-[[ signed char*->unsigned char ][ !!! *3* !!! ][ 87 ][ 9 ][ 13 ]]
-[[ signed char*->int ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
-[[ signed char*->short ][ !!! *6* !!! ][ 105 ][ 21 ][ 14 ]]
-[[ signed char*->long int ][ !!! *6* !!! ][ 104 ][ 20 ][ 15 ]]
-[[ signed char*->long long ][ !!! *6* !!! ][ 106 ][ 20 ][ 14 ]]
-[[ signed char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 20 ][ 14 ]]
-[[ signed char*->unsigned short ][ !!! *6* !!! ][ 100 ][ 18 ][ 14 ]]
-[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 23 ][ 14 ]]
-[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 103 ][ 20 ][ 14 ]]
-[[ signed char*->bool ][ !!! *3* !!! ][ 99 ][ 18 ][ 7 ]]
-[[ signed char*->float ][ !!! *18* !!! ][ 159 ][ 60 ][ 32 ]]
-[[ signed char*->double ][ !!! *18* !!! ][ 203 ][ 95 ][ 57 ]]
-[[ signed char*->long double ][ 129 ][ 213 ][ 97 ][ !!! *56* !!! ]]
-[[ signed char*->string ][ !!! *14* !!! ][ 105 ][ 22 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 109 ][ 22 ][ --- ]]
-[[ float->double ][ !!! *<1* !!! ][ 226 ][ 104 ][ --- ]]
-[[ double->double ][ !!! *<1* !!! ][ 229 ][ 103 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 225 ][ 115 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 227 ][ 115 ][ --- ]]
-[[ char->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
-[[ char->signed char ][ !!! *<1* !!! ][ 84 ][ 8 ][ --- ]]
-[[ unsigned char->char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
-[[ signed char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
-]
-[endsect]
-[section gcc-4.6][table:id Performance Table (gcc-4.6)
-[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
-[[ string->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ 7 ]]
-[[ string->signed char ][ !!! *<1* !!! ][ 96 ][ 9 ][ 7 ]]
-[[ string->unsigned char ][ !!! *<1* !!! ][ 96 ][ 8 ][ 13 ]]
-[[ string->int ][ !!! *3* !!! ][ 110 ][ 18 ][ 16 ]]
-[[ string->short ][ !!! *3* !!! ][ 111 ][ 18 ][ 16 ]]
-[[ string->long int ][ !!! *3* !!! ][ 109 ][ 18 ][ 15 ]]
-[[ string->long long ][ !!! *3* !!! ][ 111 ][ 18 ][ 15 ]]
-[[ string->unsigned int ][ !!! *3* !!! ][ 110 ][ 20 ][ 15 ]]
-[[ string->unsigned short ][ !!! *3* !!! ][ 111 ][ 18 ][ 15 ]]
-[[ string->unsigned long int ][ !!! *3* !!! ][ 109 ][ 18 ][ 15 ]]
-[[ string->unsigned long long ][ !!! *3* !!! ][ 114 ][ 19 ][ 15 ]]
-[[ string->bool ][ !!! *<1* !!! ][ 106 ][ 17 ][ 8 ]]
-[[ string->float ][ !!! *13* !!! ][ 175 ][ 70 ][ 33 ]]
-[[ string->double ][ !!! *14* !!! ][ 182 ][ 81 ][ 58 ]]
-[[ string->long double ][ 118 ][ 190 ][ 87 ][ !!! *58* !!! ]]
-[[ char->string ][ !!! *8* !!! ][ 118 ][ 21 ][ 12 ]]
-[[ unsigned char->string ][ !!! *8* !!! ][ 109 ][ 18 ][ 16 ]]
-[[ signed char->string ][ !!! *8* !!! ][ 108 ][ 18 ][ 12 ]]
-[[ int->string ][ 20 ][ 121 ][ 21 ][ !!! *16* !!! ]]
-[[ short->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 17 ]]
-[[ long int->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 16 ]]
-[[ long long->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 17 ]]
-[[ unsigned int->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 16 ]]
-[[ unsigned short->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 18 ]]
-[[ unsigned long int->string ][ 16 ][ 118 ][ 22 ][ !!! *15* !!! ]]
-[[ unsigned long long->string ][ !!! *15* !!! ][ 117 ][ 21 ][ 17 ]]
-[[ bool->string ][ !!! *8* !!! ][ 117 ][ 23 ][ 10 ]]
-[[ float->string ][ 77 ][ 218 ][ 105 ][ !!! *50* !!! ]]
-[[ double->string ][ 108 ][ 247 ][ 129 ][ !!! *73* !!! ]]
-[[ long double->string ][ 120 ][ 250 ][ 131 ][ !!! *79* !!! ]]
-[[ char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 7 ]]
-[[ char*->signed char ][ !!! *2* !!! ][ 98 ][ 9 ][ 8 ]]
-[[ char*->unsigned char ][ !!! *2* !!! ][ 98 ][ 9 ][ 13 ]]
-[[ char*->int ][ !!! *6* !!! ][ 115 ][ 22 ][ 15 ]]
-[[ char*->short ][ !!! *6* !!! ][ 114 ][ 22 ][ 15 ]]
-[[ char*->long int ][ !!! *6* !!! ][ 114 ][ 22 ][ 16 ]]
-[[ char*->long long ][ !!! *6* !!! ][ 119 ][ 22 ][ 15 ]]
-[[ char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 20 ][ 15 ]]
-[[ char*->unsigned short ][ !!! *6* !!! ][ 116 ][ 20 ][ 15 ]]
-[[ char*->unsigned long int ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
-[[ char*->unsigned long long ][ !!! *6* !!! ][ 118 ][ 22 ][ 15 ]]
-[[ char*->bool ][ !!! *3* !!! ][ 113 ][ 18 ][ 8 ]]
-[[ char*->float ][ !!! *15* !!! ][ 180 ][ 78 ][ 32 ]]
-[[ char*->double ][ !!! *16* !!! ][ 185 ][ 89 ][ 58 ]]
-[[ char*->long double ][ 119 ][ 193 ][ 91 ][ !!! *60* !!! ]]
-[[ unsigned char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 8 ]]
-[[ unsigned char*->signed char ][ !!! *2* !!! ][ 99 ][ 10 ][ 8 ]]
-[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 100 ][ 9 ][ 15 ]]
-[[ unsigned char*->int ][ !!! *6* !!! ][ 118 ][ 22 ][ 15 ]]
-[[ unsigned char*->short ][ !!! *6* !!! ][ 117 ][ 26 ][ 15 ]]
-[[ unsigned char*->long int ][ !!! *6* !!! ][ 119 ][ 21 ][ 15 ]]
-[[ unsigned char*->long long ][ !!! *6* !!! ][ 118 ][ 21 ][ 14 ]]
-[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 115 ][ 22 ][ 14 ]]
-[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 117 ][ 20 ][ 15 ]]
-[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 115 ][ 21 ][ 15 ]]
-[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
-[[ unsigned char*->bool ][ !!! *3* !!! ][ 112 ][ 18 ][ 8 ]]
-[[ unsigned char*->float ][ !!! *15* !!! ][ 181 ][ 78 ][ 33 ]]
-[[ unsigned char*->double ][ !!! *16* !!! ][ 185 ][ 92 ][ 59 ]]
-[[ unsigned char*->long double ][ 120 ][ 190 ][ 89 ][ !!! *58* !!! ]]
-[[ unsigned char*->string ][ !!! *14* !!! ][ 121 ][ 22 ][ --- ]]
-[[ signed char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 9 ]]
-[[ signed char*->signed char ][ !!! *2* !!! ][ 98 ][ 9 ][ 8 ]]
-[[ signed char*->unsigned char ][ !!! *2* !!! ][ 98 ][ 9 ][ 14 ]]
-[[ signed char*->int ][ !!! *6* !!! ][ 119 ][ 22 ][ 16 ]]
-[[ signed char*->short ][ !!! *6* !!! ][ 115 ][ 22 ][ 15 ]]
-[[ signed char*->long int ][ !!! *6* !!! ][ 119 ][ 22 ][ 15 ]]
-[[ signed char*->long long ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
-[[ signed char*->unsigned int ][ !!! *6* !!! ][ 117 ][ 23 ][ 15 ]]
-[[ signed char*->unsigned short ][ !!! *6* !!! ][ 117 ][ 21 ][ 14 ]]
-[[ signed char*->unsigned long int ][ !!! *7* !!! ][ 119 ][ 24 ][ 15 ]]
-[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 116 ][ 22 ][ 15 ]]
-[[ signed char*->bool ][ !!! *3* !!! ][ 111 ][ 18 ][ 8 ]]
-[[ signed char*->float ][ !!! *16* !!! ][ 180 ][ 78 ][ 33 ]]
-[[ signed char*->double ][ !!! *16* !!! ][ 185 ][ 89 ][ 59 ]]
-[[ signed char*->long double ][ 120 ][ 191 ][ 91 ][ !!! *59* !!! ]]
-[[ signed char*->string ][ !!! *14* !!! ][ 122 ][ 23 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 120 ][ 22 ][ --- ]]
-[[ float->double ][ !!! *<1* !!! ][ 242 ][ 115 ][ --- ]]
-[[ double->double ][ !!! *<1* !!! ][ 243 ][ 115 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 265 ][ 141 ][ --- ]]
-[[ int->int ][ !!! *<1* !!! ][ 266 ][ 140 ][ --- ]]
-[[ char->unsigned char ][ !!! *<1* !!! ][ 95 ][ 8 ][ --- ]]
-[[ char->signed char ][ !!! *<1* !!! ][ 95 ][ 8 ][ --- ]]
-[[ unsigned char->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ --- ]]
-[[ signed char->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ --- ]]
-]
-[endsect]
-
-[/ END of section, generated by performance measuring program ]
-[endsect]
-

include/boost/detail/lcast_precision.hpp

@@ -1,184 +0,0 @@
-// Copyright Alexander Nasonov & Paul A. Bristow 2006.
-
-// 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)
-
-#ifndef BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-#define BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-
-#include <climits>
-#include <ios>
-#include <limits>
-
-#include <boost/config.hpp>
-#include <boost/integer_traits.hpp>
-
-#ifndef BOOST_NO_IS_ABSTRACT
-// Fix for SF:1358600 - lexical_cast & pure virtual functions & VC 8 STL
-#include <boost/mpl/if.hpp>
-#include <boost/type_traits/is_abstract.hpp>
-#endif
-
-#if defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || \
-  (defined(BOOST_MSVC) && (BOOST_MSVC<1310))
-
-#define BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-#endif
-
-#ifdef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-#include <boost/assert.hpp>
-#else
-#include <boost/static_assert.hpp>
-#endif
-
-namespace boost { namespace detail {
-
-class lcast_abstract_stub {};
-
-#ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-// Calculate an argument to pass to std::ios_base::precision from
-// lexical_cast. See alternative implementation for broken standard
-// libraries in lcast_get_precision below. Keep them in sync, please.
-template<class T>
-struct lcast_precision
-{
-#ifdef BOOST_NO_IS_ABSTRACT
-    typedef std::numeric_limits<T> limits; // No fix for SF:1358600.
-#else
-    typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
-        boost::is_abstract<T>
-      , std::numeric_limits<lcast_abstract_stub>
-      , std::numeric_limits<T>
-      >::type limits;
-#endif
-
-    BOOST_STATIC_CONSTANT(bool, use_default_precision =
-            !limits::is_specialized || limits::is_exact
-        );
-
-    BOOST_STATIC_CONSTANT(bool, is_specialized_bin =
-            !use_default_precision &&
-            limits::radix == 2 && limits::digits > 0
-        );
-
-    BOOST_STATIC_CONSTANT(bool, is_specialized_dec =
-            !use_default_precision &&
-            limits::radix == 10 && limits::digits10 > 0
-        );
-
-    BOOST_STATIC_CONSTANT(std::streamsize, streamsize_max =
-            boost::integer_traits<std::streamsize>::const_max
-        );
-
-    BOOST_STATIC_CONSTANT(unsigned int, precision_dec = limits::digits10 + 1U);
-
-    BOOST_STATIC_ASSERT(!is_specialized_dec ||
-            precision_dec <= streamsize_max + 0UL
-        );
-
-    BOOST_STATIC_CONSTANT(unsigned long, precision_bin =
-            2UL + limits::digits * 30103UL / 100000UL
-        );
-
-    BOOST_STATIC_ASSERT(!is_specialized_bin ||
-            (limits::digits + 0UL < ULONG_MAX / 30103UL &&
-            precision_bin > limits::digits10 + 0UL &&
-            precision_bin <= streamsize_max + 0UL)
-        );
-
-    BOOST_STATIC_CONSTANT(std::streamsize, value =
-            is_specialized_bin ? precision_bin
-                               : is_specialized_dec ? precision_dec : 6
-        );
-};
-#endif
-
-template<class T>
-inline std::streamsize lcast_get_precision(T* = 0)
-{
-#ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-    return lcast_precision<T>::value;
-#else // Follow lcast_precision algorithm at run-time:
-
-#ifdef BOOST_NO_IS_ABSTRACT
-    typedef std::numeric_limits<T> limits; // No fix for SF:1358600.
-#else
-    typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
-        boost::is_abstract<T>
-      , std::numeric_limits<lcast_abstract_stub>
-      , std::numeric_limits<T>
-      >::type limits;
-#endif
-
-    bool const use_default_precision =
-        !limits::is_specialized || limits::is_exact;
-
-    if(!use_default_precision)
-    { // Includes all built-in floating-point types, float, double ...
-      // and UDT types for which digits (significand bits) is defined (not zero)
-
-        bool const is_specialized_bin =
-            limits::radix == 2 && limits::digits > 0;
-        bool const is_specialized_dec =
-            limits::radix == 10 && limits::digits10 > 0;
-        std::streamsize const streamsize_max =
-            (boost::integer_traits<std::streamsize>::max)();
-
-        if(is_specialized_bin)
-        { // Floating-point types with
-          // limits::digits defined by the specialization.
-
-            unsigned long const digits = limits::digits;
-            unsigned long const precision = 2UL + digits * 30103UL / 100000UL;
-            // unsigned long is selected because it is at least 32-bits
-            // and thus ULONG_MAX / 30103UL is big enough for all types.
-            BOOST_ASSERT(
-                    digits < ULONG_MAX / 30103UL &&
-                    precision > limits::digits10 + 0UL &&
-                    precision <= streamsize_max + 0UL
-                );
-            return precision;
-        }
-        else if(is_specialized_dec)
-        {   // Decimal Floating-point type, most likely a User Defined Type
-            // rather than a real floating-point hardware type.
-            unsigned int const precision = limits::digits10 + 1U;
-            BOOST_ASSERT(precision <= streamsize_max + 0UL);
-            return precision;
-        }
-    }
-
-    // Integral type (for which precision has no effect)
-    // or type T for which limits is NOT specialized,
-    // so assume stream precision remains the default 6 decimal digits.
-    // Warning: if your User-defined Floating-point type T is NOT specialized,
-    // then you may lose accuracy by only using 6 decimal digits.
-    // To avoid this, you need to specialize T with either
-    // radix == 2 and digits == the number of significand bits,
-    // OR
-    // radix = 10 and digits10 == the number of decimal digits.
-
-    return 6;
-#endif
-}
-
-template<class T>
-inline void lcast_set_precision(std::ios_base& stream, T*)
-{
-    stream.precision(lcast_get_precision<T>());
-}
-
-template<class Source, class Target>
-inline void lcast_set_precision(std::ios_base& stream, Source*, Target*)
-{
-    std::streamsize const s = lcast_get_precision(static_cast<Source*>(0));
-    std::streamsize const t = lcast_get_precision(static_cast<Target*>(0));
-    stream.precision(s > t ? s : t);
-}
-
-}}
-
-#endif //  BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-

include/boost/implicit_cast.hpp

@@ -2,28 +2,37 @@
 // 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 IMPLICIT_CAST_DWA200356_HPP
-# define IMPLICIT_CAST_DWA200356_HPP
 
-# include <boost/mpl/identity.hpp>
+#ifndef BOOST_IMPLICIT_CAST_DWA200356_HPP
+#define BOOST_IMPLICIT_CAST_DWA200356_HPP
+
+#include <boost/config.hpp>
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
 
 namespace boost {
 
+namespace detail {
+
+template<class T> struct icast_identity
+{
+    using type = T;
+};
+
+} // namespace detail
+
 // implementation originally suggested by C. Green in
 // http://lists.boost.org/MailArchives/boost/msg00886.php
 
 // The use of identity creates a non-deduced form, so that the
 // explicit template argument must be supplied
 template <typename T>
-inline T implicit_cast (typename mpl::identity<T>::type x) {
+constexpr T implicit_cast (typename boost::detail::icast_identity<T>::type x) {
     return x;
 }
 
-// incomplete return type now is here
-//template <typename T>
-//void implicit_cast (...);
-
 } // namespace boost
 
 
-#endif // IMPLICIT_CAST_DWA200356_HPP
+#endif // BOOST_IMPLICIT_CAST_DWA200356_HPP

include/boost/polymorphic_cast.hpp

@@ -1,6 +1,7 @@
-//  boost cast.hpp header file  ----------------------------------------------//
+//  boost polymorphic_cast.hpp header file  ----------------------------------------------//
 
 //  (C) Copyright Kevlin Henney and Dave Abrahams 1999.
+//  (C) Copyright Boris Rasin 2014.
 //  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)
@@ -8,7 +9,12 @@
 //  See http://www.boost.org/libs/conversion for Documentation.
 
 //  Revision History
-//  23 JUn 05  numeric_cast removed and redirected to the new verion (Fernando Cacciola)
+//  10 Nov 14  polymorphic_pointer_downcast moved to a separate header,
+//             minor improvements to stisfy latest Boost coding style
+//  08 Nov 14  Add polymorphic_pointer_downcast (Boris Rasin)
+//  09 Jun 14  "cast.hpp" was renamed to "polymorphic_cast.hpp" and
+//             inclusion of numeric_cast was removed (Antony Polukhin)
+//  23 Jun 05  numeric_cast removed and redirected to the new version (Fernando Cacciola)
 //  02 Apr 01  Removed BOOST_NO_LIMITS workarounds and included
 //             <boost/limits.hpp> instead (the workaround did not
 //             actually compile when BOOST_NO_LIMITS was defined in
@@ -25,7 +31,7 @@
 //  19 Oct 00  Fix numeric_cast for floating-point types (Dave Abrahams)
 //  15 Jul 00  Suppress numeric_cast warnings for GCC, Borland and MSVC
 //             (Dave Abrahams)
-//  30 Jun 00  More MSVC6 wordarounds.  See comments below.  (Dave Abrahams)
+//  30 Jun 00  More MSVC6 workarounds.  See comments below.  (Dave Abrahams)
 //  28 Jun 00  Removed implicit_cast<>.  See comment below. (Beman Dawes)
 //  27 Jun 00  More MSVC6 workarounds
 //  15 Jun 00  Add workarounds for MSVC6
@@ -40,26 +46,27 @@
 //             place in nested namespace.
 //   3 Aug 99  Initial version
 
-#ifndef BOOST_CAST_HPP
-#define BOOST_CAST_HPP
+#ifndef BOOST_POLYMORPHIC_CAST_HPP
+#define BOOST_POLYMORPHIC_CAST_HPP
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#   pragma once
+#endif
 
-# include <boost/config.hpp>
 # include <boost/assert.hpp>
-# include <typeinfo>
-# include <boost/type.hpp>
-# include <boost/limits.hpp>
-# include <boost/detail/select_type.hpp>
+# include <boost/throw_exception.hpp>
 
-//  It has been demonstrated numerous times that MSVC 6.0 fails silently at link
-//  time if you use a template function which has template parameters that don't
-//  appear in the function's argument list.
-//
-//  TODO: Add this to config.hpp?
-# if defined(BOOST_MSVC) && BOOST_MSVC < 1300
-#  define BOOST_EXPLICIT_DEFAULT_TARGET , ::boost::type<Target>* = 0
-# else
-#  define BOOST_EXPLICIT_DEFAULT_TARGET
-# endif
+# include <memory>  // std::addressof
+# include <typeinfo>
+# include <type_traits>
+
+#if defined(__cpp_constexpr) && __cpp_constexpr >= 201907L
+#define BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST constexpr
+#else
+#define BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST inline
+#endif
 
 namespace boost
 {
@@ -73,16 +80,16 @@ namespace boost
     //  section 15.8 exercise 1, page 425.
 
     template <class Target, class Source>
-    inline Target polymorphic_cast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
+    BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST Target polymorphic_cast(Source* x)
     {
         Target tmp = dynamic_cast<Target>(x);
-        if ( tmp == 0 ) throw std::bad_cast();
+        if ( tmp == 0 ) boost::throw_exception( std::bad_cast() );
         return tmp;
     }
 
 //  polymorphic_downcast  ----------------------------------------------------//
 
-    //  BOOST_ASSERT() checked polymorphic downcast.  Crosscasts prohibited.
+    //  BOOST_ASSERT() checked raw pointer polymorphic downcast.  Crosscasts prohibited.
 
     //  WARNING: Because this cast uses BOOST_ASSERT(), it violates
     //  the One Definition Rule if used in multiple translation units
@@ -92,16 +99,34 @@ namespace boost
     //  Contributed by Dave Abrahams
 
     template <class Target, class Source>
-    inline Target polymorphic_downcast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
+    BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST Target polymorphic_downcast(Source* x)
     {
         BOOST_ASSERT( dynamic_cast<Target>(x) == x );  // detect logic error
         return static_cast<Target>(x);
     }
 
-#  undef BOOST_EXPLICIT_DEFAULT_TARGET
+    //  BOOST_ASSERT() checked reference polymorphic downcast.  Crosscasts prohibited.
+
+    //  WARNING: Because this cast uses BOOST_ASSERT(), it violates
+    //  the One Definition Rule if used in multiple translation units
+    //  where BOOST_DISABLE_ASSERTS, BOOST_ENABLE_ASSERT_HANDLER
+    //  NDEBUG are defined inconsistently.
+
+    //  Contributed by Julien Delacroix
+
+    template <class Target, class Source>
+    BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST typename std::enable_if<
+        std::is_reference<Target>::value, Target
+    >::type polymorphic_downcast(Source& x)
+    {
+        using target_pointer_type = typename std::remove_reference<Target>::type*;
+        return *boost::polymorphic_downcast<target_pointer_type>(
+            std::addressof(x)
+        );
+    }
 
 } // namespace boost
 
-# include <boost/numeric/conversion/cast.hpp>
+#undef BOOST_CONVERSION_IMPL_CONSTEXPR_DYN_CAST
 
-#endif  // BOOST_CAST_HPP
+#endif  // BOOST_POLYMORPHIC_CAST_HPP

include/boost/polymorphic_pointer_cast.hpp

@@ -0,0 +1,60 @@
+//  boost polymorphic_pointer_cast.hpp header file  ----------------------------------------------//
+//  (C) Copyright Boris Rasin, 2014-2021.
+//  (C) Copyright Antony Polukhin, 2014-2026.
+//  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/conversion for Documentation.
+
+#ifndef BOOST_CONVERSION_POLYMORPHIC_POINTER_CAST_HPP
+#define BOOST_CONVERSION_POLYMORPHIC_POINTER_CAST_HPP
+
+#include <boost/config.hpp>
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#   pragma once
+#endif
+
+# include <boost/assert.hpp>
+# include <boost/pointer_cast.hpp>
+# include <boost/throw_exception.hpp>
+
+
+namespace boost
+{
+//  See the documentation for descriptions of how to choose between
+//  static_pointer_cast<>, dynamic_pointer_cast<>, polymorphic_pointer_cast<> and polymorphic_pointer_downcast<>
+
+//  polymorphic_pointer_downcast  --------------------------------------------//
+
+    //  BOOST_ASSERT() checked polymorphic downcast.  Crosscasts prohibited.
+    //  Supports any type with static_pointer_cast/dynamic_pointer_cast functions:
+    //  built-in pointers, std::shared_ptr, boost::shared_ptr, boost::intrusive_ptr, etc.
+
+    //  WARNING: Because this cast uses BOOST_ASSERT(), it violates
+    //  the One Definition Rule if used in multiple translation units
+    //  where BOOST_DISABLE_ASSERTS, BOOST_ENABLE_ASSERT_HANDLER
+    //  NDEBUG are defined inconsistently.
+
+    //  Contributed by Boris Rasin
+
+    template <typename Target, typename Source>
+    inline auto polymorphic_pointer_downcast (const Source& x)
+        -> decltype(static_pointer_cast<Target>(x))
+    {
+        BOOST_ASSERT(dynamic_pointer_cast<Target> (x) == x);
+        return static_pointer_cast<Target> (x);
+    }
+
+    template <typename Target, typename Source>
+    inline auto polymorphic_pointer_cast (const Source& x)
+        -> decltype(dynamic_pointer_cast<Target>(x))
+    {
+        auto tmp = dynamic_pointer_cast<Target> (x);
+        if ( !tmp ) boost::throw_exception( std::bad_cast() );
+        return tmp;
+    }
+
+} // namespace boost
+
+#endif  // BOOST_CONVERSION_POLYMORPHIC_POINTER_CAST_HPP

index.html

@@ -1,38 +1,39 @@
+<!DOCTYPE html>
+<!--
+ Copyright (c) 2016 Mikhail Maximov
+ vigorous.activity at gmail dot com
+
+ Copyright (c) Antony Polukhin, 2021-2026
+
+ 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)
+
+boost-no-inspect
+-->
 <html>
-
 <head>
-<meta http-equiv="Content-Language" content="en-us">
-<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
-<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
-<meta name="ProgId" content="FrontPage.Editor.Document">
-<title>Boost Conversion Library</title>
+<meta charset="utf-8">
+<meta http-equiv="refresh" content="0; url=../../doc/html/conversion.html">
+<title>Boost.Conversion</title>
+<style>
+  body {
+    background: #fff;
+    color: #000;
+  }
+  a {
+    color: #00f;
+    text-decoration: none;
+  }
+</style>
 </head>
-
-<body bgcolor="#FFFFFF" text="#000000">
-
-<h1><img border="0" src="../../boost.png" align="center" width="277" height="86">Boost
-Conversion Library</h1>
-
-<p>The Conversion Library improves program safety and clarity by performing
-otherwise messy conversions.&nbsp; It includes cast-style function templates designed to complement the C++
-Standard's built-in casts.</p>
-<p>To reduce coupling, particularly to standard library IOStreams, the Boost
-Conversion Library is
-supplied by several headers:</p>
-<ul>
-  <li>The <a href="cast.htm">boost/cast</a> header provides <b>polymorphic_cast&lt;&gt;</b>
-    and <b>polymorphic_downcast&lt;&gt;</b> to perform safe casting between
-  polymorphic types.<br>
-  </li>
-  <li>The <a href="../../doc/html/boost_lexical_cast.html">boost/lexical_cast</a> header provides <b>lexical_cast&lt;&gt;</b>
-    general literal text conversions, such as an <code>int</code> represented as
-    a <code>string</code>, or vice-versa.</li>
-</ul>
-<hr>
-<p>Revised <!--webbot bot="Timestamp" S-Type="EDITED"
-S-Format="%d %B, %Y" startspan -->June 23, 2005<!--webbot bot="Timestamp" endspan i-checksum="30348" -->
-</p>
-
+<body>
+  <p>
+    Automatic redirection failed, please go to
+    <a href="../../doc/html/conversion.html">../../doc/html/conversion.html</a>
+  </p>
+  <p>
+    &copy; Antony Polukhin, 2014-2024
+  </p>
 </body>
-
-</html>
+</html>

lexical_cast.htm

@@ -1,16 +0,0 @@
-
-<!--
-Copyright 2005-2007 Daniel James.
-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>
-    <meta http-equiv="refresh" content="0; URL=../../doc/html/boost_lexical_cast.html">
-</head>
-<body>
-Automatic redirection failed, please go to
-<a href="../../doc/html/boost_lexical_cast.html">../../doc/html/boost_lexical_cast.html</a>
-</body>
-</html>

meta/libraries.json

@@ -0,0 +1,16 @@
+{
+    "key": "conversion",
+    "name": "Conversion",
+    "authors": [
+        "Dave Abrahams",
+        "Kevlin Henney"
+    ],
+    "description": "Polymorphic casts.",
+    "category": [
+        "Miscellaneous"
+    ],
+    "maintainers": [
+        "Antony Polukhin <antoshkka -at- gmail.com>"
+    ],
+    "cxxstd": "11"
+}

numeric_cast_test.cpp

@@ -1,100 +0,0 @@
-//  boost utility cast test program  -----------------------------------------//
-
-//  (C) Copyright Beman Dawes, Dave Abrahams 1999. 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 for most recent version including documentation.
-
-//  Revision History
-//   28 Set 04  factored out numeric_cast<> test (Fernando Cacciola)
-//   20 Jan 01  removed use of <limits> for portability to raw GCC (David Abrahams)
-//   28 Jun 00  implicit_cast removed (Beman Dawes)
-//   30 Aug 99  value_cast replaced by numeric_cast
-//    3 Aug 99  Initial Version
-
-#include <iostream>
-#include <climits>
-#include <cfloat>   // for DBL_MAX (Peter Schmid)
-#include <boost/cast.hpp>
-
-#include "boost/test/minimal.hpp"
-
-#  if SCHAR_MAX == LONG_MAX
-#      error "This test program doesn't work if SCHAR_MAX == LONG_MAX"
-#  endif
-
-using namespace boost;
-using std::cout;
-
-
-int test_main( int argc, char * argv[] )
-{
-
-#   ifdef NDEBUG
-        cout << "NDEBUG is defined\n";
-#   else
-        cout << "NDEBUG is not defined\n";
-#   endif
-
-    cout << "\nBeginning tests...\n";
-
-//  test implicit_cast and numeric_cast  -------------------------------------//
-
-    //  tests which should succeed
-    long small_value = 1;
-    long small_negative_value = -1;
-    long large_value = LONG_MAX;
-    long large_negative_value = LONG_MIN;
-    signed char c = 0;
-
-    c = large_value;  // see if compiler generates warning
-
-    c = numeric_cast<signed char>( small_value );
-    BOOST_CHECK( c == 1 );
-    c = 0;
-    c = numeric_cast<signed char>( small_value );
-    BOOST_CHECK( c == 1 );
-    c = 0;
-    c = numeric_cast<signed char>( small_negative_value );
-    BOOST_CHECK( c == -1 );
-
-    // These tests courtesy of Joe R NWP Swatosh<joe.r.swatosh@usace.army.mil>
-    BOOST_CHECK( 0.0f == numeric_cast<float>( 0.0 ) );
-    BOOST_CHECK( 0.0 == numeric_cast<double>( 0.0 ) );
-
-    //  tests which should result in errors being detected
-
-    bool caught_exception = false;
-    try { c = numeric_cast<signed char>( large_value ); }
-    catch (bad_numeric_cast)
-        { cout<<"caught bad_numeric_cast #1\n"; caught_exception = true; }
-    BOOST_CHECK ( caught_exception );
-
-    caught_exception = false;
-    try { c = numeric_cast<signed char>( large_negative_value ); }
-    catch (bad_numeric_cast)
-        { cout<<"caught bad_numeric_cast #2\n"; caught_exception = true; }
-    BOOST_CHECK ( caught_exception );
-
-    unsigned long ul;
-    caught_exception = false;
-    try { ul = numeric_cast<unsigned long>( large_negative_value ); }
-    catch (bad_numeric_cast)
-        { cout<<"caught bad_numeric_cast #3\n"; caught_exception = true; }
-    BOOST_CHECK ( caught_exception );
-
-    caught_exception = false;
-    try { ul = numeric_cast<unsigned long>( small_negative_value ); }
-    catch (bad_numeric_cast)
-        { cout<<"caught bad_numeric_cast #4\n"; caught_exception = true; }
-    BOOST_CHECK ( caught_exception );
-
-    caught_exception = false;
-    try { numeric_cast<int>( DBL_MAX ); }
-    catch (bad_numeric_cast)
-        { cout<<"caught bad_numeric_cast #5\n"; caught_exception = true; }
-    BOOST_CHECK ( caught_exception );
-
-    return 0 ;
-}

test.hpp

@@ -1,308 +0,0 @@
-// what:  simple unit test framework
-// who:   developed by Kevlin Henney
-// when:  November 2000
-// where: tested with BCC 5.5, MSVC 6.0, and g++ 2.91
-//
-// ChangeLog:
-//      20 Jan 2001 - Fixed a warning for MSVC (Dave Abrahams)
-
-#ifndef TEST_INCLUDED
-#define TEST_INCLUDED
-
-#include <exception>
-#include <iostream>
-#include <strstream> // for out-of-the-box g++
-#include <string>
-
-namespace test // test tuple comprises name and nullary function (object)
-{
-    template<typename string_type, typename function_type>
-    struct test
-    {
-        string_type   name;
-        function_type action;
-
-        static test make(string_type name, function_type action)
-        {
-            test result; // MSVC aggreggate initializer bugs
-            result.name   = name;
-            result.action = action;
-            return result;
-        }
-    };
-}
-
-namespace test // failure exception used to indicate checked test failures
-{
-    class failure : public std::exception
-    {
-    public: // struction (default cases are OK)
-
-        failure(const std::string & why)
-          : reason(why)
-        {
-        }
-
-        // std::~string has no exception-specification (could throw anything),
-        // but we need to be compatible with std::~exception's empty one
-        // see std::15.4p13 and std::15.4p3
-        ~failure() throw()
-        {
-        }
-
-    public: // usage
-
-        virtual const char * what() const throw()
-        {
-            return reason.c_str();
-        }
-
-    private: // representation
-
-        std::string reason;
-
-    };
-}
-
-namespace test // not_implemented exception used to mark unimplemented tests
-{
-    class not_implemented : public std::exception
-    {
-    public: // usage (default ctor and dtor are OK)
-
-        virtual const char * what() const throw()
-        {
-            return "not implemented";
-        }
-
-    };
-}
-
-namespace test // test utilities
-{
-    inline void check(bool condition, const std::string & description)
-    {
-        if(!condition)
-        {
-            throw failure(description);
-        }
-    }
-
-    inline void check_true(bool value, const std::string & description)
-    {
-        check(value, "expected true: " + description);
-    }
-
-    inline void check_false(bool value, const std::string & description)
-    {
-        check(!value, "expected false: " + description);
-    }
-
-    template<typename lhs_type, typename rhs_type>
-    void check_equal(
-        const lhs_type & lhs, const rhs_type & rhs,
-        const std::string & description)
-    {
-        check(lhs == rhs, "expected equal values: " + description);
-    }
-
-    template<typename lhs_type, typename rhs_type>
-    void check_unequal(
-        const lhs_type & lhs, const rhs_type & rhs,
-        const std::string & description)
-    {
-        check(lhs != rhs, "expected unequal values: " + description);
-    }
-
-    inline void check_null(const void* ptr, const std::string & description)
-    {
-        check(!ptr, "expected null pointer: " + description);
-    }
-
-    inline void check_non_null(const void* ptr, const std::string & description)
-    {
-        check(ptr != 0, "expected non-null pointer: " + description);
-    }
-}
-
-#define TEST_CHECK_THROW(expression, exception, description) \
-    try \
-    { \
-        expression; \
-        throw ::test::failure(description); \
-    } \
-    catch(exception &) \
-    { \
-    }
-
-namespace test // memory tracking (enabled if test new and delete linked in)
-{
-    class allocations
-    {
-    public: // singleton access
-
-        static allocations & instance()
-        {
-            static allocations singleton;
-            return singleton;
-        }
-
-    public: // logging
-
-        void clear()
-        {
-            alloc_count = dealloc_count = 0;
-        }
-
-        void allocation()
-        {
-            ++alloc_count;
-        }
-
-        void deallocation()
-        {
-            ++dealloc_count;
-        }
-
-    public: // reporting
-
-        unsigned long allocated() const
-        {
-            return alloc_count;
-        }
-
-        unsigned long deallocated() const
-        {
-            return dealloc_count;
-        }
-
-        bool balanced() const
-        {
-            return alloc_count == dealloc_count;
-        }
-
-    private: // structors (default dtor is fine)
-    
-        allocations()
-          : alloc_count(0), dealloc_count(0)
-        {
-        }
-
-    private: // prevention
-
-        allocations(const allocations &);
-        allocations & operator=(const allocations &);
-
-    private: // state
-
-        unsigned long alloc_count, dealloc_count;
-
-    };
-}
-
-namespace test // tester is the driver class for a sequence of tests
-{
-    template<typename test_iterator>
-    class tester
-    {
-    public: // structors (default destructor is OK)
-
-        tester(test_iterator first_test, test_iterator after_last_test)
-          : begin(first_test), end(after_last_test)
-        {
-        }
-
-    public: // usage
-
-        bool operator()(); // returns true if all tests passed
-
-    private: // representation
-
-        test_iterator begin, end;
-
-    private: // prevention
-
-        tester(const tester &);
-        tester &operator=(const tester &);
-
-    };
-
-    template<typename test_iterator>
-    bool tester<test_iterator>::operator()()
-    {
-        using namespace std;
-
-        unsigned long passed = 0, failed = 0, unimplemented = 0;
-
-        for(test_iterator current = begin; current != end; ++current)
-        {
-            cerr << "[" << current->name << "] " << flush;
-            string result = "passed"; // optimistic
-
-            try
-            {
-                allocations::instance().clear();
-                current->action();
-
-                if(!allocations::instance().balanced())
-                {
-                    unsigned long allocated   = allocations::instance().allocated();
-                    unsigned long deallocated = allocations::instance().deallocated();
-                    ostrstream report;
-                    report << "new/delete ("
-                           << allocated << " allocated, "
-                           << deallocated << " deallocated)"
-                           << ends;
-                    const char * text = report.str();
-                    report.freeze(false);
-                    throw failure(text);
-                }
-
-                ++passed;
-            }
-            catch(const failure & caught)
-            {
-                (result = "failed: ") += caught.what();
-                ++failed;
-            }
-            catch(const not_implemented &)
-            {
-                result = "not implemented";
-                ++unimplemented;
-            }
-            catch(const exception & caught)
-            {
-                (result = "exception: ") += caught.what();
-                ++failed;
-            }
-            catch(...)
-            {
-                result = "failed with unknown exception";
-                ++failed;
-            }
-
-            cerr << result << endl;
-        }
-
-        cerr << passed + failed << " tests: "
-             << passed << " passed, "
-             << failed << " failed";
-
-        if(unimplemented)
-        {
-            cerr << " (" << unimplemented << " not implemented)";
-        }
-
-        cerr << endl;
-
-        return failed == 0;
-    }
-}
-
-#endif
-
-// Copyright Kevlin Henney, 2000. All rights reserved.
-//
-// 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)

test/CMakeLists.txt

@@ -0,0 +1,17 @@
+# Copyright  (c) 2016-2026 Antony Polukhin
+# 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(BoostTest OPTIONAL RESULT_VARIABLE HAVE_BOOST_TEST)
+
+if(NOT HAVE_BOOST_TEST)
+  return()
+endif()
+
+set(BOOST_TEST_LINK_LIBRARIES Boost::conversion Boost::core)
+
+boost_test(TYPE run SOURCES cast_test.cpp)
+boost_test(TYPE run SOURCES implicit_cast.cpp)
+boost_test(TYPE compile-fail SOURCES implicit_cast_fail.cpp)
+boost_test(TYPE compile-fail SOURCES implicit_cast_fail2.cpp)
+boost_test(TYPE run SOURCES polymorphic_cast_test.cpp LINK_LIBRARIES Boost::smart_ptr)

test/Jamfile.v2

@@ -1,42 +1,31 @@
-# Signals library
-
 # Copyright (C) 2001-2003 Douglas Gregor
+# Copyright (C) Antony Polukhin, 2011-2024
+#
+# 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)
+#
 
-# Permission to copy, use, sell and distribute this software is granted 
-# provided this copyright notice appears in all copies. Permission to modify 
-# the code and to distribute modified code is granted provided this copyright 
-# notice appears in all copies, and a notice that the code was modified is 
-# included with the copyright notice. This software is provided "as is" 
-# without express or implied warranty, and with no claim as to its suitability 
-# for any purpose. 
-
-# For more information, see http://www.boost.org/
-
-# bring in rules for testing
+require-b2 5.0.1 ;
+import-search /boost/config/checks ;
+import config : requires ;
 import testing ;
 import feature ;
 
-feature.feature nowchar : on :
- composite optional propagated link-incompatible ;
-feature.compose <nowchar>on : <cxxflags>/Zc:wchar_t- ; 
- 
+project
+    : requirements
+        <library>/boost/conversion//boost_conversion
+        [ requires cxx11_decltype ]
+        # default to all warnings on:
+        <warnings>all
+        # set warnings as errors for those compilers we know we get warning free:
+        <toolset>gcc:<cxxflags>-Wextra
+        <toolset>gcc:<cxxflags>-Wno-uninitialized
+    ;
+
 test-suite conversion
   : [ run implicit_cast.cpp ]
     [ compile-fail implicit_cast_fail.cpp ]
-    [ run ../cast_test.cpp ]
-    [ run ../numeric_cast_test.cpp ]    
-    [ run ../lexical_cast_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_loopback_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_abstract_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_noncopyable_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_vc8_bug_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_wchars_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_float_types_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_inf_nan_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_containers_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_empty_input_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ run lexical_cast_pointers_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
-    [ compile lexical_cast_typedefed_wchar_test.cpp : <toolset>msvc:<nowchar>on ]
-    [ run lexical_cast_typedefed_wchar_test_runtime.cpp ../../test/build//boost_unit_test_framework/<link>static : : : <toolset>msvc:<nowchar>on ]
+    [ run cast_test.cpp ]
+    [ run polymorphic_cast_test.cpp : : : <library>/boost/smart_ptr//boost_smart_ptr ]
+    [ compile-fail implicit_cast_fail2.cpp ]
   ;
-      

test/appveyor.yml

@@ -0,0 +1,87 @@
+# 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)
+#
+# Copyright Antony Polukhin, 2016-2025.
+
+#
+# See https://svn.boost.org/trac/boost/wiki/TravisCoverals for description of this file
+# and how it can be used with Boost libraries.
+#
+# File revision #6
+
+init:
+    # boost-local/libs/ folder to put this library into. This may be useful, if you're for example running Travis
+    # from `Boost.DLL` repo while Boost already has `dll` and with to replace `dll` with content of`Boost.DLL`.
+    #
+    # Otherwise just leave the default value - set BOOST_LIBS_FOLDER=%APPVEYOR_PROJECT_NAME%
+    - set BOOST_LIBS_FOLDER=%APPVEYOR_PROJECT_NAME%
+
+###############################################################################################################
+# From this point and below code is same for all the Boost libs
+###############################################################################################################
+
+version: 1.84.{build}-{branch}
+ 
+# branches to build
+branches:
+  except:
+    - gh-pages
+
+skip_tags: true
+
+environment:
+  matrix:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      TOOLSET: msvc-14.1,clang-win
+      CXXSTD: 14,17
+      ADDRMD: 32,64
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      ADDPATH: C:\cygwin\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11,14,1z
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      ADDPATH: C:\cygwin64\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11,14,1z
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      ADDPATH: C:\mingw\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11,14,1z
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      ADDPATH: C:\mingw-w64\x86_64-7.2.0-posix-seh-rt_v5-rev1\mingw64\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11,14,1z
+
+before_build:
+    - set BOOST_BRANCH=develop
+    - if "%APPVEYOR_REPO_BRANCH%" == "master" set BOOST_BRANCH=master
+    - echo "Testing %APPVEYOR_PROJECT_NAME%"
+    # Cloning Boost libraries (fast nondeep cloning)
+    - set BOOST=C:/boost-local
+    - git clone -b %BOOST_BRANCH% --depth 10 https://github.com/boostorg/boost.git %BOOST%
+    - cd %BOOST%
+    - git submodule update --init --depth 10 tools/build tools/boostdep
+
+    - rm -rf %BOOST%/libs/%BOOST_LIBS_FOLDER%
+    - mv -f %APPVEYOR_BUILD_FOLDER% %BOOST%/libs/%BOOST_LIBS_FOLDER%
+    - python tools/boostdep/depinst/depinst.py --git_args "--depth 10 --jobs 2" %BOOST_LIBS_FOLDER%
+
+build_script:
+    - cmd /c bootstrap
+    - b2.exe headers
+    - cd %BOOST%/libs/%BOOST_LIBS_FOLDER%/test
+
+after_build:
+before_test:
+test_script:
+  - PATH=%ADDPATH%%PATH%
+  - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
+  - if not "%ADDRMD%" == "" set ADDRMD=address-model=%ADDRMD%
+  - echo "Running command ..\..\..\b2 -j3 toolset=%TOOLSET% %CXXSTD% %ADDRMD% variant=debug,release"
+  - ..\..\..\b2.exe -j3 toolset=%TOOLSET% %CXXSTD% %ADDRMD% variant=debug,release cxxflags="-DBOOST_TRAVISCI_BUILD"
+
+after_test:
+on_success:
+on_failure:
+on_finish:

test/cast_test.cpp

@@ -14,13 +14,8 @@
 //    3 Aug 99  Initial Version
 
 #include <iostream>
-#include <climits>
-#include <cfloat>   // for DBL_MAX (Peter Schmid)
-#include <boost/cast.hpp>
-
-#  if SCHAR_MAX == LONG_MAX
-#      error "This test program doesn't work if SCHAR_MAX == LONG_MAX"
-#  endif
+#include <boost/polymorphic_cast.hpp>
+#include <boost/core/lightweight_test.hpp>
 
 using namespace boost;
 using std::cout;
@@ -43,6 +38,48 @@ namespace
     };
 }
 
+constexpr bool compile_time_polymorphic_cast_check() {
+#if defined(__cpp_constexpr) && __cpp_constexpr >= 201907L
+    Derived derived;
+    Base* base = &derived;
+    return polymorphic_cast<Derived*>(base) != nullptr;
+#endif
+    return true;
+}
+
+static_assert(
+    compile_time_polymorphic_cast_check(),
+    "polymorphic_cast does not work at compile time"
+);
+
+constexpr bool compile_time_polymorphic_downcast_check() {
+#if defined(__cpp_constexpr) && __cpp_constexpr >= 201907L
+    Derived derived;
+    Base* base = &derived;
+    return polymorphic_downcast<Derived*>(base) != nullptr;
+#endif
+    return true;
+}
+
+static_assert(
+    compile_time_polymorphic_downcast_check(),
+    "polymorphic_downcast does not work at compile time"
+);
+
+constexpr bool compile_time_polymorphic_downcast2_check() {
+#if defined(__cpp_constexpr) && __cpp_constexpr >= 201907L
+    Derived derived;
+    Base& base = derived;
+    Derived& derived_again = polymorphic_downcast<Derived&>(base);
+    (void)derived_again;
+#endif
+    return true;
+}
+
+static_assert(
+    compile_time_polymorphic_downcast2_check(),
+    "polymorphic_downcast does not work at compile time"
+);
 
 int main( int argc, char * argv[] )
 {
@@ -57,35 +94,31 @@ int main( int argc, char * argv[] )
 //  test polymorphic_cast  ---------------------------------------------------//
 
     //  tests which should succeed
-    Base *    base = new Derived;
-    Base2 *   base2 = 0;
-    Derived * derived = 0;
-    derived = polymorphic_downcast<Derived*>( base );  // downcast
-    assert( derived->kind() == 'D' );
+    Derived derived_instance;
+    Base * base = &derived_instance;
+    Derived * derived = polymorphic_downcast<Derived*>( base );  // downcast
+    BOOST_TEST( derived->kind() == 'D' );
 
-    derived = 0;
     derived = polymorphic_cast<Derived*>( base ); // downcast, throw on error
-    assert( derived->kind() == 'D' );
+    BOOST_TEST( derived->kind() == 'D' );
 
-    base2 = polymorphic_cast<Base2*>( base ); // crosscast
-    assert( base2->kind2() == '2' );
+    Base2 *   base2 =  polymorphic_cast<Base2*>( base ); // crosscast
+    BOOST_TEST( base2->kind2() == '2' );
 
      //  tests which should result in errors being detected
-    int err_count = 0;
-    base = new Base;
+    Base base_instance;
+    base = &base_instance;
 
     if ( argc > 1 && *argv[1] == '1' )
         { derived = polymorphic_downcast<Derived*>( base ); } // #1 assert failure
 
     bool caught_exception = false;
     try { derived = polymorphic_cast<Derived*>( base ); }
-    catch (std::bad_cast)
+    catch (const std::bad_cast&)
         { cout<<"caught bad_cast\n"; caught_exception = true; }
-    if ( !caught_exception ) ++err_count;
+    BOOST_TEST( caught_exception );
     //  the following is just so generated code can be inspected
-    if ( derived->kind() == 'B' ) ++err_count;
+    BOOST_TEST( derived->kind() != 'B' );
 
-    cout << err_count << " errors detected\nTest "
-         << (err_count==0 ? "passed\n" : "failed\n");
-    return err_count;
+    return boost::report_errors();
 }   // main

test/implicit_cast.cpp

@@ -4,8 +4,9 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 
 #include <boost/implicit_cast.hpp>
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 #include <boost/type.hpp>
+
 using boost::implicit_cast;
 using boost::type;
 
@@ -18,8 +19,8 @@ struct foo
     operator long() const { return 0; }
 };
 
-typedef type<long> long_type;
-typedef type<foo> foo_type;
+using long_type = type<long>;
+using foo_type = type<foo>;
 
 int main()
 {
@@ -28,5 +29,15 @@ int main()
 
     type<foo> f = check_return(boost::implicit_cast<foo>("hello"));
     type<long> z = check_return(boost::implicit_cast<long>(foo("hello")));
+
+    // warning suppression:
+    (void)x;
+    (void)f;
+    (void)z;
+
+
+    constexpr long value = boost::implicit_cast<long>(42);
+    BOOST_TEST(value == 42L);
+
     return boost::report_errors();
 }

test/implicit_cast_fail.cpp

@@ -4,10 +4,6 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 
 #include <boost/implicit_cast.hpp>
-#include <boost/type.hpp>
-
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
 
 using boost::implicit_cast;
 
@@ -16,7 +12,9 @@ struct foo
     explicit foo(char const*) {}
 };
 
-int test_main(int, char*[])
+int main()
 {
     foo x = implicit_cast<foo>("foobar");
+    (void)x;            // warning suppression.
+    return 0;
 }

test/implicit_cast_fail2.cpp

@@ -0,0 +1,19 @@
+//
+// Test that implicit_cast requires a template argument
+//
+// Copyright 2014 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/implicit_cast.hpp>
+
+int main()
+{
+    int x = boost::implicit_cast( 1 );
+    (void)x;
+
+    return 0;
+}

test/lexical_cast_abstract_test.cpp

@@ -1,61 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Sergey Shandar 2005, Alexander Nasonov, 2007.
-//
-//  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).
-//
-// Test abstract class. Bug 1358600:
-// http://sf.net/tracker/?func=detail&aid=1358600&group_id=7586&atid=107586
-
-#include <boost/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-#include <boost/test/unit_test.hpp>
-
-using namespace boost;
-
-void test_abstract();
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast unit test");
-    suite->add(BOOST_TEST_CASE(&test_abstract));
-
-    return suite;
-}
-
-class A
-{
-public:
-    virtual void out(std::ostream &) const = 0;
-};
-
-class B: public A
-{
-public:
-    virtual void out(std::ostream &O) const { O << "B"; }
-};
-
-std::ostream &operator<<(std::ostream &O, const A &a)
-{
-    a.out(O);
-    return O;
-}
-
-void test_abstract()
-{
-    const A &a = B();
-    BOOST_CHECK(boost::lexical_cast<std::string>(a) == "B");
-}
-

test/lexical_cast_containers_test.cpp

@@ -1,38 +0,0 @@
-//  Testing boost::lexical_cast with boost::container::string.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/lexical_cast.hpp>
-#include <boost/test/unit_test.hpp>
-#include <boost/container/string.hpp>
-
-void testing_boost_containers_basic_string();
-
-using namespace boost;
-
-boost::unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("Testing boost::lexical_cast with boost::container::string");
-    suite->add(BOOST_TEST_CASE(testing_boost_containers_basic_string));
-
-    return suite;
-}
-
-void testing_boost_containers_basic_string()
-{       
-    BOOST_CHECK("100" == lexical_cast<boost::container::string>("100"));
-    BOOST_CHECK(L"100" == lexical_cast<boost::container::wstring>(L"100"));
-
-    BOOST_CHECK("100" == lexical_cast<boost::container::string>(100));
-    boost::container::string str("1000");
-    BOOST_CHECK(1000 == lexical_cast<int>(str));
-}
-
-

test/lexical_cast_empty_input_test.cpp

@@ -1,151 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-#include <boost/test/unit_test.hpp>
-#include <boost/range/iterator_range.hpp>
-
-using namespace boost;
-
-#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
-#define BOOST_LCAST_NO_WCHAR_T
-#endif
-
-template <class T>
-void do_test_on_empty_input(T& v)
-{
-    BOOST_CHECK_THROW(lexical_cast<int>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<float>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<double>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<long double>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned int>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned short>(v), bad_lexical_cast);
-#if defined(BOOST_HAS_LONG_LONG)
-    BOOST_CHECK_THROW(lexical_cast<boost::ulong_long_type>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<boost::long_long_type>(v), bad_lexical_cast);
-#elif defined(BOOST_HAS_MS_INT64)
-    BOOST_CHECK_THROW(lexical_cast<unsigned __int64>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<__int64>(v), bad_lexical_cast);
-#endif
-}
-
-void test_empty_iterator_range()
-{
-
-    boost::iterator_range<char*> v;
-    do_test_on_empty_input(v);
-    BOOST_CHECK_EQUAL(lexical_cast<std::string>(v), std::string());
-    BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
-
-    boost::iterator_range<const char*> cv;
-    do_test_on_empty_input(cv);
-    BOOST_CHECK_EQUAL(lexical_cast<std::string>(cv), std::string());
-    BOOST_CHECK_THROW(lexical_cast<char>(cv), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(cv), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(cv), bad_lexical_cast);
-
-    const boost::iterator_range<const char*> ccv;
-    do_test_on_empty_input(ccv);
-    BOOST_CHECK_EQUAL(lexical_cast<std::string>(ccv), std::string());
-    BOOST_CHECK_THROW(lexical_cast<char>(ccv), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(ccv), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(ccv), bad_lexical_cast);
-}
-
-void test_empty_string()
-{
-    std::string v;
-    do_test_on_empty_input(v);
-    BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
-
-#ifndef BOOST_LCAST_NO_WCHAR_T
-    std::wstring vw;
-    do_test_on_empty_input(vw);
-    BOOST_CHECK_THROW(lexical_cast<wchar_t>(vw), bad_lexical_cast);
-#endif
-
-// Currently, no compiler and STL library fully support char16_t and char32_t
-//#ifndef BOOST_NO_CHAR16_T
-//    std::basic_string<char16_t> v16w;
-//    do_test_on_empty_input(v16w);
-//    BOOST_CHECK_THROW(lexical_cast<char16_t>(v16w), bad_lexical_cast);
-//#endif
-//#ifndef BOOST_NO_CHAR32_T
-//    std::basic_string<char32_t> v32w;
-//    do_test_on_empty_input(v32w);
-//    BOOST_CHECK_THROW(lexical_cast<char32_t>(v32w), bad_lexical_cast);
-//#endif
-}
-
-struct Escape
-{
-    Escape(const std::string& s)
-        : str_(s)
-    {}
-
-    std::string str_;
-};
-
-inline std::ostream& operator<< (std::ostream& o, const Escape& rhs)
-{
-    return o << rhs.str_;
-}
-
-void test_empty_user_class()
-{
-    Escape v("");
-    do_test_on_empty_input(v);
-    BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
-}
-
-namespace std {
-inline std::ostream & operator<<(std::ostream & out, const std::vector<long> & v)
-{
-    std::ostream_iterator<long> it(out);
-    std::copy(v.begin(), v.end(), it);
-    assert(out);
-    return out;
-}
-}
-
-void test_empty_vector()
-{
-    std::vector<long> v;
-    do_test_on_empty_input(v);
-    BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast. Empty input unit test");
-    suite->add(BOOST_TEST_CASE(&test_empty_iterator_range));
-    suite->add(BOOST_TEST_CASE(&test_empty_string));
-    suite->add(BOOST_TEST_CASE(&test_empty_user_class));
-    suite->add(BOOST_TEST_CASE(&test_empty_vector));
-
-    return suite;
-}

test/lexical_cast_float_types_test.cpp

@@ -1,513 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-
-#include <boost/cstdint.hpp>
-#include <boost/test/unit_test.hpp>
-#include <boost/test/floating_point_comparison.hpp>
-
-void test_conversion_from_to_float();
-void test_conversion_from_to_double();
-void test_conversion_from_to_long_double();
-
-using namespace boost;
-
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast float types unit test");
-    suite->add(BOOST_TEST_CASE(&test_conversion_from_to_float));
-    suite->add(BOOST_TEST_CASE(&test_conversion_from_to_double));
-    suite->add(BOOST_TEST_CASE(&test_conversion_from_to_long_double));
-
-    return suite;
-}
-
-
-// Replace "-,999" with "-999".
-template<class CharT>
-std::basic_string<CharT> to_str_gcc_workaround(std::basic_string<CharT> str)
-{
-    std::locale loc;
-    std::numpunct<CharT> const& np = BOOST_USE_FACET(std::numpunct<CharT>, loc);
-    std::ctype<CharT> const& ct = BOOST_USE_FACET(std::ctype<CharT>, loc);
-
-    if(np.grouping().empty())
-        return str;
-
-    CharT prefix[3] = { ct.widen('-'), np.thousands_sep(), CharT() };
-
-    if(str.find(prefix) != 0)
-        return str;
-
-    prefix[1] = CharT();
-    str.replace(0, 2, prefix);
-    return str;
-}
-
-template<class CharT, class T>
-std::basic_string<CharT> to_str(T t)
-{
-    std::basic_ostringstream<CharT> o;
-    o << t;
-    return to_str_gcc_workaround(o.str());
-}
-
-
-template<class T>
-void test_conversion_from_to_float_for_locale()
-{
-    std::locale current_locale;
-    typedef std::numpunct<char> numpunct;
-    numpunct const& np = BOOST_USE_FACET(numpunct, current_locale);
-    if ( !np.grouping().empty() )
-    {
-        BOOST_CHECK_THROW(
-                lexical_cast<T>( std::string("100") + np.thousands_sep() + np.thousands_sep() + "0" )
-                , bad_lexical_cast);
-        BOOST_CHECK_THROW(lexical_cast<T>( std::string("100") + np.thousands_sep() ), bad_lexical_cast);
-        BOOST_CHECK_THROW(lexical_cast<T>( np.thousands_sep() + std::string("100") ), bad_lexical_cast);
-        BOOST_CHECK_THROW(lexical_cast<T>( std::string("1") + np.thousands_sep() + np.decimal_point() + "e10" ), bad_lexical_cast);
-        BOOST_CHECK_THROW(lexical_cast<T>( std::string("1e10") + np.thousands_sep() ), bad_lexical_cast);
-        BOOST_CHECK_THROW(lexical_cast<T>( std::string("1") + np.thousands_sep() + "e10" ), bad_lexical_cast);
-
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< char >(100000) ), 100000, (std::numeric_limits<T>::epsilon()) );
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< char >(10000000u) ), 10000000u, (std::numeric_limits<T>::epsilon()) );
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< char >(100) ), 100, (std::numeric_limits<T>::epsilon()) );
-#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< wchar_t >(100000) ), 100000, (std::numeric_limits<T>::epsilon()) );
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< wchar_t >(10000000u) ), 10000000u, (std::numeric_limits<T>::epsilon()) );
-        BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( to_str< wchar_t >(100) ), 100, (std::numeric_limits<T>::epsilon()) );
-#endif
-        // Exception must not be thrown, when we are using no separators at all
-        BOOST_CHECK_CLOSE_FRACTION( lexical_cast<T>("30000"), static_cast<T>(30000), (std::numeric_limits<T>::epsilon()) );
-    }
-}
-
-
-
-
-/*
- * Converts char* [and wchar_t] to float number type and checks, that generated
- * number is in interval [base_value-epsilon, base_value+epsilon].
- */
-#ifndef BOOST_LCAST_NO_WCHAR_T
-#define CHECK_CLOSE_ABS_DIFF(VAL,PREFIX)                                                          \
-    converted_val = lexical_cast<test_t>(#VAL);                                                   \
-    BOOST_CHECK_CLOSE_FRACTION( (VAL ## L? VAL ## L : std::numeric_limits<test_t>::epsilon()),             \
-                       (converted_val ? converted_val : std::numeric_limits<test_t>::epsilon()),  \
-                       std::numeric_limits<test_t>::epsilon()                                     \
-                     );                                                                           \
-    BOOST_CHECK_EQUAL(converted_val, lexical_cast<test_t>(L## #VAL) );
-
-#else
-#define CHECK_CLOSE_ABS_DIFF(VAL,TYPE)                                                            \
-    converted_val = lexical_cast<test_t>(#VAL);                                                   \
-    BOOST_CHECK_CLOSE_FRACTION( (VAL ## L? VAL ## L : std::numeric_limits<test_t>::epsilon()),             \
-                       (converted_val ? converted_val : std::numeric_limits<test_t>::epsilon()),  \
-                       std::numeric_limits<test_t>::epsilon()                                     \
-                     );
-#endif
-
-template <class TestType>
-void test_converion_to_float_types()
-{
-    typedef TestType test_t;
-    test_t converted_val;
-
-    BOOST_CHECK_CLOSE_FRACTION(1.0, lexical_cast<test_t>('1'), (std::numeric_limits<test_t>::epsilon()));
-    BOOST_CHECK_EQUAL(0.0, lexical_cast<test_t>('0'));
-
-    unsigned char const uc_one = '1';
-    unsigned char const uc_zero ='0';
-    BOOST_CHECK_CLOSE_FRACTION(1.0, lexical_cast<test_t>(uc_one), (std::numeric_limits<test_t>::epsilon()));
-    BOOST_CHECK_EQUAL(0.0, lexical_cast<test_t>(uc_zero));
-
-    signed char const sc_one = '1';
-    signed char const sc_zero ='0';
-    BOOST_CHECK_CLOSE_FRACTION(1.0, lexical_cast<test_t>(sc_one), (std::numeric_limits<test_t>::epsilon()));
-    BOOST_CHECK_EQUAL(0.0, lexical_cast<test_t>(sc_zero));
-
-    BOOST_CHECK_CLOSE_FRACTION(1e34L, lexical_cast<test_t>( "10000000000000000000000000000000000"), (std::numeric_limits<test_t>::epsilon()) );
-
-//    VC failes the next test
-//    BOOST_CHECK_CLOSE_FRACTION(1e-35L, lexical_cast<test_t>("0.00000000000000000000000000000000001"), (std::numeric_limits<test_t>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(
-                                    0.1111111111111111111111111111111111111111111111111111111111111111111111111L
-            , lexical_cast<test_t>("0.1111111111111111111111111111111111111111111111111111111111111111111111111")
-            , (std::numeric_limits<test_t>::epsilon()) );
-
-    CHECK_CLOSE_ABS_DIFF(1,test_t);
-    BOOST_CHECK_EQUAL(0,lexical_cast<test_t>("0"));
-    CHECK_CLOSE_ABS_DIFF(-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1.0, test_t);
-    CHECK_CLOSE_ABS_DIFF(0.0, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1.0,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1e1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1.0e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0.0e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1.0e1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1e-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1.0e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0.0e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1.0e-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1E1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1.0E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0.0E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1.0E1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1E-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(1.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(0.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-1.0E-1, test_t);
-
-    CHECK_CLOSE_ABS_DIFF(.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-.0E-1, test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10.0, test_t);
-    CHECK_CLOSE_ABS_DIFF(00.0, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10.0,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10e1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10.0e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00.0e1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10.0e1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10e-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10.0e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00.0e-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10.0e-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10E1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10.0E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00.0E1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10.0E1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10E-1,test_t);
-
-    CHECK_CLOSE_ABS_DIFF(10.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(00.0E-1, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10.0E-1, test_t);
-
-    CHECK_CLOSE_ABS_DIFF(-10101.0E-011, test_t);
-    CHECK_CLOSE_ABS_DIFF(-10101093, test_t);
-    CHECK_CLOSE_ABS_DIFF(10101093, test_t);
-    
-    CHECK_CLOSE_ABS_DIFF(-.34, test_t);
-    CHECK_CLOSE_ABS_DIFF(.34, test_t);
-    CHECK_CLOSE_ABS_DIFF(.34e10, test_t);
-
-    BOOST_CHECK_THROW(lexical_cast<test_t>("-1.e"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("-1.E"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.e"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.E"), bad_lexical_cast);
-
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0e"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0E"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("10E"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("10e"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0e-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0E-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("10E-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("10e-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("e1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("e-1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("e-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(".e"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(".11111111111111111111111111111111111111111111111111111111111111111111ee"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(".11111111111111111111111111111111111111111111111111111111111111111111e-"), bad_lexical_cast);
-
-    BOOST_CHECK_THROW(lexical_cast<test_t>("-B"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("0xB"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("0x0"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("--1.0"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0e--1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0.0"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1e1e1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0e-1e-1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(" 1.0"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1.0 "), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(""), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("-"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>('\0'), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>('-'), bad_lexical_cast);
-}
-
-template <class T>
-void test_float_typess_for_overflows()
-{
-    typedef T test_t;
-    test_t minvalue = (std::numeric_limits<test_t>::min)();
-    std::string s_min_value = lexical_cast<std::string>(minvalue);
-    BOOST_CHECK_CLOSE_FRACTION(minvalue, lexical_cast<test_t>(minvalue), (std::numeric_limits<test_t>::epsilon()));
-    BOOST_CHECK_CLOSE_FRACTION(minvalue, lexical_cast<test_t>(s_min_value), (std::numeric_limits<test_t>::epsilon()));
-
-    test_t maxvalue = (std::numeric_limits<test_t>::max)();
-    std::string s_max_value = lexical_cast<std::string>(maxvalue);
-    BOOST_CHECK_CLOSE_FRACTION(maxvalue, lexical_cast<test_t>(maxvalue), (std::numeric_limits<test_t>::epsilon()));
-    BOOST_CHECK_CLOSE_FRACTION(maxvalue, lexical_cast<test_t>(s_max_value), (std::numeric_limits<test_t>::epsilon()));
-
-    BOOST_CHECK_THROW(lexical_cast<test_t>(s_max_value+"1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>(s_max_value+"9"), bad_lexical_cast);
-
-    // VC9 can fail the fllowing tests on floats and doubles when using stingstream...
-    BOOST_CHECK_THROW(lexical_cast<test_t>("1"+s_max_value), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<test_t>("9"+s_max_value), bad_lexical_cast);
-
-    if ( is_same<test_t,float>::value )
-    {
-        BOOST_CHECK_THROW(lexical_cast<test_t>( (std::numeric_limits<double>::max)() ), bad_lexical_cast);
-        BOOST_CHECK(
-                (std::numeric_limits<double>::min)() - std::numeric_limits<test_t>::epsilon()
-                <= lexical_cast<test_t>( (std::numeric_limits<double>::min)() )
-                && lexical_cast<test_t>( (std::numeric_limits<double>::min)() )
-                <= (std::numeric_limits<double>::min)() + std::numeric_limits<test_t>::epsilon()
-        );
-    }
-
-    if ( sizeof(test_t) < sizeof(long double) )
-    {
-        BOOST_CHECK_THROW(lexical_cast<test_t>( (std::numeric_limits<long double>::max)() ), bad_lexical_cast);
-        BOOST_CHECK(
-                (std::numeric_limits<long double>::min)() - std::numeric_limits<test_t>::epsilon()
-                <= lexical_cast<test_t>( (std::numeric_limits<long double>::min)() )
-                && lexical_cast<test_t>( (std::numeric_limits<long double>::min)() )
-                <= (std::numeric_limits<long double>::min)() + std::numeric_limits<test_t>::epsilon()
-        );
-    }
-}
-
-#undef CHECK_CLOSE_ABS_DIFF
-
-#define TEST_TO_FROM_CAST_AROUND_TYPED(VAL,STRING_TYPE)                             \
-    test_value = VAL + std::numeric_limits<test_t>::epsilon() * i ;                 \
-    converted_val = lexical_cast<test_t>( lexical_cast<STRING_TYPE>(test_value) );  \
-    BOOST_CHECK_CLOSE_FRACTION(                                                              \
-            test_value,                                                             \
-            converted_val,                                                          \
-            std::numeric_limits<test_t>::epsilon()                                  \
-        );
-
-/*
- * For interval [ from_mult*epsilon+VAL, to_mult*epsilon+VAL ], converts float type
- * numbers to string[wstring] and then back to float type, then compares initial
- * values and generated.
- * Step is epsilon
- */
-#ifndef BOOST_LCAST_NO_WCHAR_T
-#   define TEST_TO_FROM_CAST_AROUND(VAL)                    \
-    for(i=from_mult; i<=to_mult; ++i) {                     \
-        TEST_TO_FROM_CAST_AROUND_TYPED(VAL, std::string)    \
-        TEST_TO_FROM_CAST_AROUND_TYPED(VAL, std::wstring)   \
-    }
-#else
-#   define TEST_TO_FROM_CAST_AROUND(VAL)                    \
-    for(i=from_mult; i<=to_mult; ++i) {                     \
-        TEST_TO_FROM_CAST_AROUND_TYPED(VAL, std::string)    \
-    }
-#endif
-
-template <class TestType>
-void test_converion_from_to_float_types()
-{
-    typedef TestType test_t;
-    test_t test_value;
-    test_t converted_val;
-
-    int i;
-    int from_mult = -50;
-    int to_mult = 50;
-
-    TEST_TO_FROM_CAST_AROUND( 0.0 );
-
-    long double val1;
-    for(val1 = 1.0e-10L; val1 < 1e11; val1*=10 )
-        TEST_TO_FROM_CAST_AROUND( val1 );
-
-    long double val2;
-    for(val2 = -1.0e-10L; val2 > -1e11; val2*=10 )
-        TEST_TO_FROM_CAST_AROUND( val2 );
-
-    from_mult = -100;
-    to_mult = 0;
-    TEST_TO_FROM_CAST_AROUND( (std::numeric_limits<test_t>::max)() );
-
-    from_mult = 0;
-    to_mult = 100;
-    TEST_TO_FROM_CAST_AROUND( (std::numeric_limits<test_t>::min)() );
-}
-
-#undef TEST_TO_FROM_CAST_AROUND
-#undef TEST_TO_FROM_CAST_AROUND_TYPED
-
-
-template<class T, class CharT>
-void test_conversion_from_float_to_char(CharT zero)
-{
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(0)) == zero + 0);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(1)) == zero + 1);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(2)) == zero + 2);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(3)) == zero + 3);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(4)) == zero + 4);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(5)) == zero + 5);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(6)) == zero + 6);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(7)) == zero + 7);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(8)) == zero + 8);
-    BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(9)) == zero + 9);
-
-    BOOST_CHECK_THROW(lexical_cast<CharT>(static_cast<T>(10)), bad_lexical_cast);
-
-    T t = (std::numeric_limits<T>::max)();
-    BOOST_CHECK_THROW(lexical_cast<CharT>(t), bad_lexical_cast);
-}
-
-template<class T, class CharT>
-void test_conversion_from_char_to_float(CharT zero)
-{
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 0)), static_cast<T>(0), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 1)), static_cast<T>(1), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 2)), static_cast<T>(2), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 3)), static_cast<T>(3), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 4)), static_cast<T>(4), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 5)), static_cast<T>(5), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 6)), static_cast<T>(6), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 7)), static_cast<T>(7), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 8)), static_cast<T>(8), (std::numeric_limits<T>::epsilon()) );
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>( static_cast<CharT>(zero + 9)), static_cast<T>(9), (std::numeric_limits<T>::epsilon()) );
-
-    BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero + 10)), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero - 1)), bad_lexical_cast);
-}
-
-struct restore_oldloc
-{
-    std::locale oldloc;
-    ~restore_oldloc() { std::locale::global(oldloc); }
-};
-
-template<class T>
-void test_conversion_from_to_float()
-{    char const zero = '0';
-    signed char const szero = '0';
-    unsigned char const uzero = '0';
-    test_conversion_from_float_to_char<T>(zero);
-    test_conversion_from_char_to_float<T>(zero);
-    test_conversion_from_float_to_char<T>(szero);
-    test_conversion_from_char_to_float<T>(szero);
-    test_conversion_from_float_to_char<T>(uzero);
-    test_conversion_from_char_to_float<T>(uzero);
-    #if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
-    wchar_t const wzero = L'0';
-    test_conversion_from_float_to_char<T>(wzero);
-    test_conversion_from_char_to_float<T>(wzero);
-    #endif
-
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>("+1"), 1, std::numeric_limits<T>::epsilon());
-    BOOST_CHECK_CLOSE_FRACTION(lexical_cast<T>("+9"), 9, std::numeric_limits<T>::epsilon());
-
-    BOOST_CHECK_THROW(lexical_cast<T>("++1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<T>("-+9"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<T>("--1"), bad_lexical_cast);
-    BOOST_CHECK_THROW(lexical_cast<T>("+-9"), bad_lexical_cast);
-
-    test_converion_to_float_types<T>();
-    test_float_typess_for_overflows<T>();
-    test_converion_from_to_float_types<T>();
-
-
-    typedef std::numpunct<char> numpunct;
-
-    restore_oldloc guard;
-    std::locale const& oldloc = guard.oldloc;
-
-    std::string grouping1 = BOOST_USE_FACET(numpunct, oldloc).grouping();
-    std::string grouping2(grouping1);
-
-    test_conversion_from_to_float_for_locale<T>();
-
-    try
-    {
-        std::locale newloc("");
-        std::locale::global(newloc);
-
-        grouping2 = BOOST_USE_FACET(numpunct, newloc).grouping();
-    }
-    catch(std::exception const& ex)
-    {
-        std::string msg("Failed to set system locale: ");
-        msg += ex.what();
-        BOOST_TEST_MESSAGE(msg);
-    }
-
-    if(grouping1 != grouping2)
-        test_conversion_from_to_float_for_locale<T>();
-
-    if(grouping1.empty() && grouping2.empty())
-        BOOST_TEST_MESSAGE("Formatting with thousands_sep has not been tested");
-}
-
-
-void test_conversion_from_to_float()
-{
-    test_conversion_from_to_float<float>();
-}
-void test_conversion_from_to_double()
-{
-    test_conversion_from_to_float<double>();
-}
-void test_conversion_from_to_long_double()
-{
-    test_conversion_from_to_float<long double>();
-}
-
-
-
-
-
-
-

test/lexical_cast_inf_nan_test.cpp

@@ -1,180 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-
-
-#include <boost/math/special_functions/sign.hpp>
-#include <boost/math/special_functions/fpclassify.hpp>
-#include <boost/type_traits/is_same.hpp>
-#include <boost/test/unit_test.hpp>
-#include <boost/test/floating_point_comparison.hpp>
-
-#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
-#define BOOST_LCAST_NO_WCHAR_T
-#endif
-
-using namespace boost;
-
-template <class T>
-bool is_pos_inf(T value)
-{
-    return (boost::math::isinf)(value) && !(boost::math::signbit)(value);
-}
-
-template <class T>
-bool is_neg_inf(T value)
-{
-    return (boost::math::isinf)(value) && (boost::math::signbit)(value);
-}
-
-template <class T>
-bool is_pos_nan(T value)
-{
-    return (boost::math::isnan)(value) && !(boost::math::signbit)(value);
-}
-
-template <class T>
-bool is_neg_nan(T value)
-{
-    /* There is some strange behaviour on Itanium platform with -nan nuber for long double.
-    * It is a IA64 feature, or it is a boost::math feature, not a lexical_cast bug */
-#if defined(__ia64__) || defined(_M_IA64)
-    return (boost::math::isnan)(value)
-            && ( boost::is_same<T, long double >::value || (boost::math::signbit)(value) );
-#else
-    return (boost::math::isnan)(value) && (boost::math::signbit)(value);
-#endif
-}
-
-template <class T>
-void test_inf_nan_templated()
-{
-    typedef T test_t;
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("inf") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("INF") ) );
-
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>("-inf") ) );
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>("-INF") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("+inf") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("+INF") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("infinity") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("INFINITY") ) );
-
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>("-infinity") ) );
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>("-INFINITY") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("+infinity") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>("+INFINITY") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("nan") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("NAN") ) );
-
-    BOOST_CHECK( is_neg_nan( lexical_cast<test_t>("-nan") ) );
-    BOOST_CHECK( is_neg_nan( lexical_cast<test_t>("-NAN") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("+nan") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("+NAN") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("nan()") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>("NAN(some string)") ) );
-    BOOST_CHECK_THROW( lexical_cast<test_t>("NAN(some string"), bad_lexical_cast );
-
-    BOOST_CHECK(lexical_cast<std::string>( (boost::math::changesign)(std::numeric_limits<test_t >::infinity()))
-                == "-inf" );
-    BOOST_CHECK(lexical_cast<std::string>( std::numeric_limits<test_t >::infinity()) == "inf" );
-    BOOST_CHECK(lexical_cast<std::string>( std::numeric_limits<test_t >::quiet_NaN()) == "nan" );
-#if !defined(__ia64__) && !defined(_M_IA64)
-    BOOST_CHECK(lexical_cast<std::string>(
-                (boost::math::changesign)(std::numeric_limits<test_t >::quiet_NaN()))
-                == "-nan" );
-#endif
-
-#ifndef  BOOST_LCAST_NO_WCHAR_T
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"inf") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"INF") ) );
-
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>(L"-inf") ) );
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>(L"-INF") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"+inf") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"+INF") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"infinity") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"INFINITY") ) );
-
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>(L"-infinity") ) );
-    BOOST_CHECK( is_neg_inf( lexical_cast<test_t>(L"-INFINITY") ) );
-
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"+infinity") ) );
-    BOOST_CHECK( is_pos_inf( lexical_cast<test_t>(L"+INFINITY") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"nan") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"NAN") ) );
-
-    BOOST_CHECK( is_neg_nan( lexical_cast<test_t>(L"-nan") ) );
-    BOOST_CHECK( is_neg_nan( lexical_cast<test_t>(L"-NAN") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"+nan") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"+NAN") ) );
-
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"nan()") ) );
-    BOOST_CHECK( is_pos_nan( lexical_cast<test_t>(L"NAN(some string)") ) );
-    BOOST_CHECK_THROW( lexical_cast<test_t>(L"NAN(some string"), bad_lexical_cast );
-
-    BOOST_CHECK(lexical_cast<std::wstring>( (boost::math::changesign)(std::numeric_limits<test_t >::infinity()))
-                == L"-inf" );
-    BOOST_CHECK(lexical_cast<std::wstring>( std::numeric_limits<test_t >::infinity()) == L"inf" );
-    BOOST_CHECK(lexical_cast<std::wstring>( std::numeric_limits<test_t >::quiet_NaN()) == L"nan" );
-#if !defined(__ia64__) && !defined(_M_IA64)
-    BOOST_CHECK(lexical_cast<std::wstring>(
-                (boost::math::changesign)(std::numeric_limits<test_t >::quiet_NaN()))
-                == L"-nan" );
-#endif
-
-#endif
-}
-
-void test_inf_nan_float()
-{
-    test_inf_nan_templated<float >();
-}
-
-void test_inf_nan_double()
-{
-    test_inf_nan_templated<double >();
-}
-
-void test_inf_nan_long_double()
-{
-    test_inf_nan_templated<long double >();
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast inf anf nan parsing unit test");
-    suite->add(BOOST_TEST_CASE(&test_inf_nan_float));
-    suite->add(BOOST_TEST_CASE(&test_inf_nan_double));
-    suite->add(BOOST_TEST_CASE(&test_inf_nan_long_double));
-
-    return suite;
-}

test/lexical_cast_loopback_test.cpp

@@ -1,92 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Alexander Nasonov, 2006.
-//
-//  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).
-//
-//  Test round-tripping conversion FPT -> string -> FPT,
-//  where FPT is Floating Point Type.
-
-#include <boost/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-#include <boost/test/unit_test.hpp>
-
-using namespace boost;
-
-void test_round_conversion_float();
-void test_round_conversion_double();
-void test_round_conversion_long_double();
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast unit test");
-    suite->add(BOOST_TEST_CASE(&test_round_conversion_float));
-    suite->add(BOOST_TEST_CASE(&test_round_conversion_double));
-    suite->add(BOOST_TEST_CASE(&test_round_conversion_long_double));
-
-    return suite;
-}
-
-template<class T>
-void test_round_conversion()
-{
-    T epsilon = std::numeric_limits<T>::epsilon();
-    std::string const epsilon_s = boost::lexical_cast<std::string>(epsilon);
-    BOOST_CHECK(epsilon == lexical_cast<T>(epsilon_s));
-
-    T max_ = (std::numeric_limits<T>::max)();
-    std::string const max_s = boost::lexical_cast<std::string>(max_);
-    BOOST_CHECK(max_ == lexical_cast<T>(max_s));
-
-    T min_ = (std::numeric_limits<T>::min)();
-    std::string const min_s = boost::lexical_cast<std::string>(min_);
-    BOOST_CHECK(min_ == lexical_cast<T>(min_s));
-
-    T max_div137 = max_ / 137;
-    std::string max_div137_s = boost::lexical_cast<std::string>(max_div137);
-    BOOST_CHECK(max_div137 == lexical_cast<T>(max_div137_s));
-
-    T epsilon_mult137 = epsilon * 137;
-    std::string epsilon_mult137_s(lexical_cast<std::string>(epsilon_mult137));
-    BOOST_CHECK(epsilon_mult137 == lexical_cast<T>(epsilon_mult137_s));
-
-}
-
-// See bug http://tinyurl.com/vhpvo
-template<class T>
-void test_msvc_magic_values()
-{
-    T magic_msvc = 0.00010000433948393407;
-    std::string magic_msvc_s = boost::lexical_cast<std::string>(magic_msvc);
-    BOOST_CHECK(magic_msvc == lexical_cast<T>(magic_msvc_s));
-}
-
-void test_round_conversion_float()
-{
-    test_round_conversion<float>();
-}
-
-void test_round_conversion_double()
-{
-    test_round_conversion<double>();
-    test_msvc_magic_values<double>();
-}
-
-void test_round_conversion_long_double()
-{
-    test_round_conversion<long double>();
-    test_msvc_magic_values<long double>();
-}
-

test/lexical_cast_noncopyable_test.cpp

@@ -1,54 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Alexander Nasonov, 2007.
-//
-//  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).
-//
-//  Test that Source can be non-copyable.
-
-#include <boost/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-#include <boost/noncopyable.hpp>
-#include <boost/test/unit_test.hpp>
-
-using namespace boost;
-
-void test_noncopyable();
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast unit test");
-    suite->add(BOOST_TEST_CASE(&test_noncopyable));
-
-    return suite;
-}
-
-class Noncopyable : private boost::noncopyable
-{
-public:
-    Noncopyable() {}
-};
-
-inline std::ostream &operator<<(std::ostream &out, const Noncopyable&)
-{
-    return out << "Noncopyable";
-}
-
-void test_noncopyable()
-{
-    Noncopyable x;
-    BOOST_CHECK(boost::lexical_cast<std::string>(x) == "Noncopyable");
-}
-

test/lexical_cast_pointers_test.cpp

@@ -1,96 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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).
-
-#include <boost/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-#include <boost/test/unit_test.hpp>
-
-using namespace boost;
-
-#if defined(BOOST_NO_STRINGSTREAM)
-            typedef std::strstream ss_t;
-#else
-            typedef std::stringstream ss_t;
-#endif
-
-void test_void_pointers_conversions()
-{
-    void *p_to_null = NULL;
-    const void *cp_to_data = "Some data";
-    char nonconst_data[5];
-    void *p_to_data = nonconst_data;
-    ss_t ss;
-
-    ss << p_to_null;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(p_to_null), ss.str());
-    ss.str(std::string());
-
-    ss << cp_to_data;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(cp_to_data), ss.str());
-    ss.str(std::string());
-
-    ss << p_to_data;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(p_to_data), ss.str());
-    ss.str(std::string());
-}
-
-struct incomplete_type;
-
-void test_incomplete_type_pointers_conversions()
-{
-    incomplete_type *p_to_null = NULL;
-    const incomplete_type *cp_to_data = NULL;
-    char nonconst_data[5];
-    incomplete_type *p_to_data = reinterpret_cast<incomplete_type*>(nonconst_data);
-    ss_t ss;
-
-    ss << p_to_null;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(p_to_null), ss.str());
-    ss.str(std::string());
-
-    ss << cp_to_data;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(cp_to_data), ss.str());
-    ss.str(std::string());
-
-    ss << p_to_data;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(p_to_data), ss.str());
-    ss.str(std::string());
-}
-
-struct ble;
-typedef struct ble *meh;
-std::ostream& operator <<(std::ostream &o, meh) {
-  o << "yay";
-  return o;
-}
-
-void test_inomplete_type_with_overloaded_ostream_op() {
-    meh heh = NULL;
-    ss_t ss;
-    ss << heh;
-    BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(heh), ss.str());
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast pinters test");
-    suite->add(BOOST_TEST_CASE(&test_void_pointers_conversions));
-    suite->add(BOOST_TEST_CASE(&test_incomplete_type_pointers_conversions));
-    suite->add(BOOST_TEST_CASE(&test_inomplete_type_with_overloaded_ostream_op));
-    return suite;
-}

test/lexical_cast_typedefed_wchar_test.cpp

@@ -1,25 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#include <boost/static_assert.hpp>
-#include <boost/lexical_cast.hpp>
-
-int main()
-{
-#ifdef BOOST_MSVC
-    BOOST_STATIC_ASSERT((boost::is_same<wchar_t, unsigned short>::value));
-#endif
-
-    return ::boost::lexical_cast<int>(L"1000") == 1000;
-}
-
-

test/lexical_cast_typedefed_wchar_test_runtime.cpp

@@ -1,48 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-
-#include <boost/test/unit_test.hpp>
-using namespace boost;
-
-void test_typedefed_wchar_t_runtime()
-{
-#ifndef BOOST_LCAST_NO_WCHAR_T
-#ifdef BOOST_MSVC
-    BOOST_STATIC_ASSERT((boost::is_same<wchar_t, unsigned short>::value));
-
-
-    BOOST_CHECK_EQUAL(boost::lexical_cast<int>(L'A'), 65);
-    BOOST_CHECK_EQUAL(boost::lexical_cast<int>(L'B'), 66);
-    
-    BOOST_CHECK_EQUAL(boost::lexical_cast<wchar_t>(L"65"), 65);
-    BOOST_CHECK_EQUAL(boost::lexical_cast<wchar_t>(L"66"), 66);
-#endif
-#endif
-    BOOST_CHECK(1);
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast typedefed wchar_t runtime test");
-    suite->add(BOOST_TEST_CASE(&test_typedefed_wchar_t_runtime));
-
-    return suite;
-}

test/lexical_cast_vc8_bug_test.cpp

@@ -1,67 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Alexander Nasonov, 2007.
-//
-//  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).
-//
-// This tests now must pass on vc8, because lexical_cast
-// implementation has changed and it does not use stringstream for casts
-// to integral types
-
-#include <boost/config.hpp>
-#include <boost/lexical_cast.hpp>
-#include <boost/cstdint.hpp>
-#include <boost/test/unit_test.hpp>
-
-#include <string>
-
-using namespace boost;
-
-// See also test_conversion_from_string_to_integral(CharT)
-// in libs/conversion/lexical_cast_test.cpp
-template<class T, class CharT>
-void test_too_long_number(CharT zero)
-{
-    typedef std::numeric_limits<T> limits;
-
-    std::basic_string<CharT> s;
-
-    std::basic_ostringstream<CharT> o;
-    o << (limits::max)() << zero;
-    s = o.str();
-    BOOST_CHECK_THROW(lexical_cast<T>(s), bad_lexical_cast);
-    s[s.size()-1] += 9; // '0' -> '9'
-    BOOST_CHECK_THROW(lexical_cast<T>(s), bad_lexical_cast);
-
-    if(limits::is_signed)
-    {
-        std::basic_ostringstream<CharT> o;
-        o << (limits::min)() << zero;
-        s = o.str();
-        BOOST_CHECK_THROW(lexical_cast<T>(s), bad_lexical_cast);
-        s[s.size()-1] += 9; // '0' -> '9'
-        BOOST_CHECK_THROW(lexical_cast<T>(s), bad_lexical_cast);
-    }
-}
-
-void test_vc8_bug()
-{
-    test_too_long_number<boost::intmax_t>('0');
-    test_too_long_number<boost::uintmax_t>('0');
-#if !defined(BOOST_LCAST_NO_WCHAR_T)
-    test_too_long_number<boost::intmax_t>(L'0');
-    test_too_long_number<boost::uintmax_t>(L'0');
-#endif
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast vc8 bug unit test");
-    suite->add(BOOST_TEST_CASE(test_vc8_bug));
-    return suite;
-}

test/lexical_cast_wchars_test.cpp

@@ -1,56 +0,0 @@
-//  Unit test for boost::lexical_cast.
-//
-//  See http://www.boost.org for most recent version, including documentation.
-//
-//  Copyright Antony Polukhin, 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/config.hpp>
-
-#if defined(__INTEL_COMPILER)
-#pragma warning(disable: 193 383 488 981 1418 1419)
-#elif defined(BOOST_MSVC)
-#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
-#endif
-
-#include <boost/lexical_cast.hpp>
-
-#include <boost/cstdint.hpp>
-#include <boost/test/unit_test.hpp>
-#include <boost/test/floating_point_comparison.hpp>
-
-using namespace boost;
-
-void test_char_types_conversions()
-{
-#ifndef BOOST_LCAST_NO_WCHAR_T
-    const char c_arr[]            = "Test array of chars";
-    const unsigned char uc_arr[]  = "Test array of chars";
-    const signed char sc_arr[]    = "Test array of chars";
-    const wchar_t wc_arr[]        =L"Test array of chars";
-
-    // Following tests depend on realization of std::locale
-    // and pass for popular compilers and STL realizations
-    BOOST_CHECK(boost::lexical_cast<wchar_t>(c_arr[0]) == wc_arr[0]);
-    BOOST_CHECK(boost::lexical_cast<std::wstring>(c_arr) == std::wstring(wc_arr));
-
-    BOOST_CHECK(boost::lexical_cast<std::wstring>(sc_arr) == std::wstring(wc_arr) );
-    BOOST_CHECK(boost::lexical_cast<std::wstring>(uc_arr) == std::wstring(wc_arr) );
-
-    BOOST_CHECK_EQUAL(boost::lexical_cast<wchar_t>(uc_arr[0]), wc_arr[0]);
-    BOOST_CHECK_EQUAL(boost::lexical_cast<wchar_t>(sc_arr[0]), wc_arr[0]);
-#endif
-    BOOST_CHECK(1);
-}
-
-unit_test::test_suite *init_unit_test_suite(int, char *[])
-{
-    unit_test::test_suite *suite =
-        BOOST_TEST_SUITE("lexical_cast char<->wchar_t unit test");
-    suite->add(BOOST_TEST_CASE(&test_char_types_conversions));
-
-    return suite;
-}

test/polymorphic_cast_test.cpp

@@ -0,0 +1,383 @@
+//
+// Test boost::polymorphic_cast, boost::polymorphic_downcast and 
+// boost::polymorphic_pointer_cast, boost::polymorphic_pointer_downcast
+//
+// Copyright 1999 Beman Dawes
+// Copyright 1999 Dave Abrahams
+// Copyright 2014 Peter Dimov
+// Copyright 2014 Boris Rasin, Antony Polukhin
+// Copyright 2023 Antony Polukhin
+//
+// 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
+//
+
+#define BOOST_ENABLE_ASSERT_HANDLER
+#include <boost/polymorphic_cast.hpp>
+#include <boost/polymorphic_pointer_cast.hpp>
+#include <boost/smart_ptr/shared_ptr.hpp>
+#include <boost/smart_ptr/intrusive_ptr.hpp>
+#include <boost/smart_ptr/intrusive_ref_counter.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <string>
+#include <memory>
+
+static bool expect_assertion = false;
+static int assertion_failed_count = 0;
+
+//assertion handler throws it to exit like assert, but to be able to catch it and stop
+//usage: BOOST_TEST_THROWS( function_with_assert(), expected_assertion );
+struct expected_assertion {};
+
+// BOOST_ASSERT custom handler
+void boost::assertion_failed( char const * expr, char const * function, char const * file, long line )
+{
+    if( expect_assertion )
+    {
+        ++assertion_failed_count;
+        throw expected_assertion();
+    }
+    else
+    {
+        BOOST_ERROR( "unexpected assertion" );
+
+        BOOST_LIGHTWEIGHT_TEST_OSTREAM
+          << file << "(" << line << "): assertion '" << expr << "' failed in function '"
+          << function << "'" << std::endl;
+    }
+}
+
+//
+
+struct Base : boost::intrusive_ref_counter<Base>
+{
+    virtual ~Base() {}
+    virtual std::string kind() { return "Base"; }
+};
+
+struct Base2
+{
+    virtual ~Base2() {}
+    virtual std::string kind2() { return "Base2"; }
+};
+
+struct Derived : public Base, Base2
+{
+    virtual std::string kind() { return "Derived"; }
+};
+
+static void test_polymorphic_cast()
+{
+    Base * base = new Derived;
+
+    Derived * derived;
+    
+    try
+    {
+        derived = boost::polymorphic_cast<Derived*>( base );
+
+        BOOST_TEST( derived != 0 );
+
+        if( derived != 0 )
+        {
+            BOOST_TEST_EQ( derived->kind(), "Derived" );
+        }
+    }
+    catch( std::bad_cast const& )
+    {
+        BOOST_ERROR( "boost::polymorphic_cast<Derived*>( base ) threw std::bad_cast" );
+    }
+
+    Base2 * base2;
+
+    try
+    {
+        base2 = boost::polymorphic_cast<Base2*>( base ); // crosscast
+
+        BOOST_TEST( base2 != 0 );
+
+        if( base2 != 0 )
+        {
+            BOOST_TEST_EQ( base2->kind2(), "Base2" );
+        }
+    }
+    catch( std::bad_cast const& )
+    {
+        BOOST_ERROR( "boost::polymorphic_cast<Base2*>( base ) threw std::bad_cast" );
+    }
+
+    delete base;
+}
+
+static void test_polymorphic_pointer_cast()
+{
+    Base * base = new Derived;
+
+    Derived * derived;
+
+    try
+    {
+        derived = boost::polymorphic_pointer_cast<Derived>( base );
+
+        BOOST_TEST( derived != 0 );
+
+        if( derived != 0 )
+        {
+            BOOST_TEST_EQ( derived->kind(), "Derived" );
+        }
+    }
+    catch( std::bad_cast const& )
+    {
+        BOOST_ERROR( "boost::polymorphic_pointer_cast<Derived>( base ) threw std::bad_cast" );
+    }
+
+    Base2 * base2;
+
+    try
+    {
+        base2 = boost::polymorphic_pointer_cast<Base2>( base ); // crosscast
+
+        BOOST_TEST( base2 != 0 );
+
+        if( base2 != 0 )
+        {
+            BOOST_TEST_EQ( base2->kind2(), "Base2" );
+        }
+    }
+    catch( std::bad_cast const& )
+    {
+        BOOST_ERROR( "boost::polymorphic_pointer_cast<Base2>( base ) threw std::bad_cast" );
+    }
+
+    boost::shared_ptr<Base> sp_base( base );
+    boost::shared_ptr<Base2> sp_base2;
+    try
+    {
+        sp_base2 = boost::polymorphic_pointer_cast<Base2>( sp_base ); // crosscast
+
+        BOOST_TEST( sp_base2 != 0 );
+
+        if( sp_base2 != 0 )
+        {
+            BOOST_TEST_EQ( sp_base2->kind2(), "Base2" );
+        }
+    }
+    catch( std::bad_cast const& )
+    {
+        BOOST_ERROR( "boost::polymorphic_pointer_cast<Base2>( sp_base ) threw std::bad_cast" );
+    }
+
+    // we do not `delete base;` because sahred_ptr is holding base
+}
+
+static void test_polymorphic_downcast()
+{
+    Base *base_pointer = new Derived;
+
+    // test raw pointer cast
+    Derived *derived_pointer = boost::polymorphic_downcast<Derived *>(base_pointer);
+
+    BOOST_TEST(derived_pointer != 0);
+
+    if (derived_pointer != 0)
+    {
+        BOOST_TEST_EQ(derived_pointer->kind(), "Derived");
+    }
+
+    // test reference cast
+    Derived& derived_ref = boost::polymorphic_downcast<Derived&>(*base_pointer);
+    BOOST_TEST_EQ(derived_ref.kind(), "Derived");
+
+    delete base_pointer;
+}
+
+static void test_polymorphic_pointer_downcast_builtin()
+{
+    Base * base = new Derived;
+
+    Derived * derived = boost::polymorphic_pointer_downcast<Derived>( base );
+
+    BOOST_TEST( derived != 0 );
+
+    if( derived != 0 )
+    {
+        BOOST_TEST_EQ( derived->kind(), "Derived" );
+    }
+
+    // polymorphic_pointer_downcast can't do crosscasts
+
+    delete base;
+}
+
+static void test_polymorphic_pointer_downcast_boost_shared()
+{
+    boost::shared_ptr<Base> base (new Derived);
+
+    boost::shared_ptr<Derived> derived = boost::polymorphic_pointer_downcast<Derived>( base );
+
+    BOOST_TEST( derived != 0 );
+
+    if( derived != 0 )
+    {
+        BOOST_TEST_EQ( derived->kind(), "Derived" );
+    }
+}
+
+static void test_polymorphic_pointer_downcast_intrusive()
+{
+    boost::intrusive_ptr<Base> base (new Derived);
+
+    boost::intrusive_ptr<Derived> derived = boost::polymorphic_pointer_downcast<Derived>( base );
+
+    BOOST_TEST( derived != 0 );
+
+    if( derived != 0 )
+    {
+        BOOST_TEST_EQ( derived->kind(), "Derived" );
+    }
+}
+
+static void test_polymorphic_pointer_downcast_std_shared()
+{
+    std::shared_ptr<Base> base (new Derived);
+
+    std::shared_ptr<Derived> derived = boost::polymorphic_pointer_downcast<Derived>( base );
+
+    BOOST_TEST( derived != 0 );
+
+    if( derived != 0 )
+    {
+        BOOST_TEST_EQ( derived->kind(), "Derived" );
+    }
+}
+
+static void test_polymorphic_cast_fail()
+{
+    Base * base = new Base;
+
+    BOOST_TEST_THROWS( boost::polymorphic_cast<Derived*>( base ), std::bad_cast );
+
+    delete base;
+}
+
+static void test_polymorphic_pointer_cast_fail()
+{
+    Base * base = new Base;
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( base ), std::bad_cast );
+    delete base;
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( boost::shared_ptr<Base>(new Base) ), std::bad_cast );
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( std::shared_ptr<Base>(new Base) ), std::bad_cast );
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_cast<Derived>( boost::intrusive_ptr<Base>(new Base) ), std::bad_cast );
+}
+
+static void test_polymorphic_downcast_fail()
+{
+    Base * base_pointer = new Base;
+
+    {
+        // test raw pointer cast
+
+        int old_count = assertion_failed_count;
+        expect_assertion = true;
+
+        BOOST_TEST_THROWS(boost::polymorphic_downcast<Derived *>(base_pointer), expected_assertion); // should assert
+
+        BOOST_TEST_EQ(assertion_failed_count, old_count + 1);
+        expect_assertion = false;
+    }
+    {
+        // test reference cast
+
+        int old_count = assertion_failed_count;
+        expect_assertion = true;
+
+        BOOST_TEST_THROWS(boost::polymorphic_downcast<Derived &>(*base_pointer), expected_assertion); // should assert
+
+        BOOST_TEST_EQ(assertion_failed_count, old_count + 1);
+        expect_assertion = false;
+    }
+
+    delete base_pointer;
+}
+
+static void test_polymorphic_pointer_downcast_builtin_fail()
+{
+    Base * base = new Base;
+
+    int old_count = assertion_failed_count;
+    expect_assertion = true;
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_downcast<Derived>( base ), expected_assertion ); // should assert
+
+    BOOST_TEST_EQ( assertion_failed_count, old_count + 1 );
+    expect_assertion = false;
+
+    delete base;
+}
+
+static void test_polymorphic_pointer_downcast_boost_shared_fail()
+{
+    boost::shared_ptr<Base> base (new Base);
+
+    int old_count = assertion_failed_count;
+    expect_assertion = true;
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_downcast<Derived>( base ), expected_assertion ); // should assert
+
+    BOOST_TEST_EQ( assertion_failed_count, old_count + 1 );
+    expect_assertion = false;
+}
+
+
+static void test_polymorphic_pointer_downcast_std_shared_fail()
+{
+    std::shared_ptr<Base> base (new Base);
+
+    int old_count = assertion_failed_count;
+    expect_assertion = true;
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_downcast<Derived>( base ), expected_assertion ); // should assert
+
+    BOOST_TEST_EQ( assertion_failed_count, old_count + 1 );
+    expect_assertion = false;
+}
+
+
+static void test_polymorphic_pointer_downcast_intrusive_fail()
+{
+    boost::intrusive_ptr<Base> base (new Base);
+
+    int old_count = assertion_failed_count;
+    expect_assertion = true;
+
+    BOOST_TEST_THROWS( boost::polymorphic_pointer_downcast<Derived>( base ), expected_assertion); // should assert
+
+    BOOST_TEST_EQ( assertion_failed_count, old_count + 1 );
+    expect_assertion = false;
+}
+
+int main()
+{
+    test_polymorphic_cast();
+    test_polymorphic_pointer_cast();
+    test_polymorphic_downcast();
+    test_polymorphic_pointer_downcast_builtin();
+    test_polymorphic_pointer_downcast_boost_shared();
+    test_polymorphic_pointer_downcast_intrusive();
+    test_polymorphic_cast_fail();
+    test_polymorphic_pointer_cast_fail();
+    test_polymorphic_downcast_fail();
+    test_polymorphic_pointer_downcast_builtin_fail();
+    test_polymorphic_pointer_downcast_boost_shared_fail();
+    test_polymorphic_pointer_downcast_intrusive_fail();
+
+    test_polymorphic_pointer_downcast_std_shared();
+    test_polymorphic_pointer_downcast_std_shared_fail();
+
+
+    return boost::report_errors();
+}