Merge branch 'develop'

Regenerate docs.
[CI SKIP]
2026-03-07 06:14:04 +01:00 · 2020-03-23 21:08:46 +00:00 · 2020-03-23 21:07:52 +00:00 · 2020-02-24 12:16:04 +00:00 · 2020-01-25 11:09:54 +00:00 · 2020-01-25 09:35:15 +00:00
239 changed files with 8582 additions and 287 deletions
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -0,0 +1,57 @@
+version: 2
+
+jobs:
+  build:
+    environment:
+      - BOOST_LIBRARY=config
+      - CXX_STANDARD=gnu++11
+    docker:
+      - image: gcc:7
+    steps:
+      - checkout
+      - run:
+          name: Setting up Environment
+          command: |
+            echo 'export BOOST="$HOME/boost-local"' >> $BASH_ENV
+            if [ $CIRCLE_BRANCH = "master" ]; then
+                echo 'export BOOST_BRANCH="master"' >> $BASH_ENV;
+            else
+                echo 'export BOOST_BRANCH="develop"' >> $BASH_ENV;
+            fi
+            echo 'export BOOST_REMOVE="$BOOST/boost/libs/$BOOST_LIBRARY"' >> $BASH_ENV
+            HOME_SED_=$(echo $HOME | sed -e 's/\//\\\//g')
+            echo 'export HOME_SED=$HOME_SED_' >> $BASH_ENV
+      - run:
+          name: install pre dependencies
+          command: |
+            apt-get update -yqq
+            apt-get install git xsltproc docbook-xsl docbook-xml -y
+      - run:
+          name: Initializing git repo for boost
+          command: |
+            echo BOOST=$BOOST BOOST_REMOVE=$BOOST_REMOVE BOOST_LIBRARY=$BOOST_LIBRARY BOOST_BRANCH=$BOOST_BRANCH PWD=$PWD
+            mkdir $BOOST
+            cd $BOOST
+            git clone --single-branch --branch $BOOST_BRANCH https://github.com/boostorg/boost.git
+            cd boost
+            git submodule update --init --merge
+            rm -rf $BOOST_REMOVE
+            mv $HOME/project $BOOST_REMOVE
+      - run:
+          name: Bootstrapping boost-build
+          command: |
+            cd $BOOST/boost && ./bootstrap.sh && ./b2 headers
+            echo "using xsltproc ;" | tee $HOME/user-config.jam
+            echo "using boostbook : /usr/share/xml/docbook/stylesheet/docbook-xsl : /usr/share/sgml/docbook/dtd/xml/4.2 ;" | tee -a $HOME/user-config.jam
+      - run:
+          name: Building inspect
+          command: |
+            cd $BOOST/boost/tools/inspect/build && ../../../b2 -j2 address-model=64 architecture=x86 toolset=gcc cxxflags="-std=gnu++14" release dist-bin
+      - run:
+          name: Building docs
+          command: |
+            cd $BOOST_REMOVE/doc && rm -rf html && ../../../b2 -j2 address-model=64 architecture=x86 toolset=gcc cxxflags="-std=gnu++14" release
+      - run:
+          name: Running Inspect
+          command: |
+            cd $BOOST_REMOVE && ../../dist/bin/inspect -text -license -copyright -crlf -end -link -path_name -tab -ascii -apple_macro -assert_macro -minmax -unnamed
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,8 @@ language: cpp

 sudo: false

+dist : xenial
+
 branches:
  only:
    - master
@@ -26,6 +28,7 @@ matrix:
      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11

    - os: linux
+      dist: trusty
      compiler: g++-4.4
      env: TOOLSET=gcc COMPILER=g++-4.4 CXXSTD=98,0x
      addons:
@@ -36,6 +39,7 @@ matrix:
            - ubuntu-toolchain-r-test

    - os: linux
+      dist: trusty
      compiler: g++-4.6
      env: TOOLSET=gcc COMPILER=g++-4.6 CXXSTD=03,0x
      addons:
@@ -46,6 +50,7 @@ matrix:
            - ubuntu-toolchain-r-test

    - os: linux
+      dist: trusty
      env: TOOLSET=gcc COMPILER=g++-4.7 CXXSTD=03,11
      addons:
        apt:
@@ -55,6 +60,7 @@ matrix:
            - ubuntu-toolchain-r-test

    - os: linux
+      dist: trusty
      env: TOOLSET=gcc COMPILER=g++-4.8 CXXSTD=03,11
      addons:
        apt:
@@ -64,6 +70,7 @@ matrix:
            - ubuntu-toolchain-r-test

    - os: linux
+      dist: trusty
      env: TOOLSET=gcc COMPILER=g++-4.9 CXXSTD=03,11
      addons:
        apt:
@@ -81,6 +88,15 @@ matrix:
          sources:
            - ubuntu-toolchain-r-test

+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14,1z CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-5
+          sources:
+            - ubuntu-toolchain-r-test
+
    - os: linux
      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=03,11,14,1z
      addons:
@@ -117,10 +133,22 @@ matrix:
          sources:
            - ubuntu-toolchain-r-test

+    - os: linux
+      dist: trusty
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
    - os: linux
      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11

    - os: linux
+      dist: trusty
      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
      addons:
        apt:
@@ -131,6 +159,7 @@ matrix:
            - llvm-toolchain-precise-3.5

    - os: linux
+      dist: trusty
      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11,14,1z
      addons:
        apt:
@@ -141,6 +170,7 @@ matrix:
            - llvm-toolchain-precise-3.6

    - os: linux
+      dist: trusty
      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11,14,1z
      addons:
        apt:
@@ -151,6 +181,7 @@ matrix:
            - llvm-toolchain-precise-3.7

    - os: linux
+      dist: trusty
      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=03,11,14,1z
      addons:
        apt:
@@ -161,6 +192,7 @@ matrix:
            - llvm-toolchain-precise-3.8

    - os: linux
+      dist: trusty
      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=03,11,14,1z
      addons:
        apt:
@@ -179,7 +211,7 @@ matrix:
            - clang-4.0
          sources:
            - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-4.0
+            - llvm-toolchain-xenial-4.0

    - os: linux
      compiler: clang++-5.0
@@ -190,19 +222,72 @@ matrix:
            - clang-5.0
          sources:
            - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-5.0
+            - llvm-toolchain-xenial-5.0

    - os: linux
      compiler: clang++-libc++
-      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
+      env: TOOLSET=clang COMPILER="clang++-5.0 -stdlib=libc++" CXXSTD=03,11,14
      addons:
        apt:
          packages:
            - libc++-dev
+            - clang-5.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-5.0
+
+    - os: linux
+      compiler: clang++-6.0
+      env: TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-6.0
+
+    - os: linux
+      compiler: clang++-libc++
+      env: TOOLSET=clang COMPILER="clang++-6.0 -stdlib=libc++" CXXSTD=03,11,14
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+            - libc++-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-6.0
+
+    - os: linux
+      compiler: clang++-7
+      env: TOOLSET=clang COMPILER=clang++-7 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-7
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-7
+
+    - os: linux
+      compiler: clang++-8
+      env: TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-8
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,17,2a
+      osx_image: xcode10.2

    - os: osx
      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
-      osx_image: xcode9.1
+      osx_image: xcode9.4

    - os: osx
      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
@@ -230,6 +315,8 @@ install:
  - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
  - cd boost-root
  - git submodule update --init tools/build
+  - git submodule update --init tools/boost_install
+  - git submodule update --init libs/headers
  - git submodule update --init libs/detail
  - git submodule update --init libs/core
  - git submodule update --init libs/assert
@@ -239,11 +326,10 @@ install:
  - ./b2 headers
 
 script:
+  - if [ $TEST_INTEL ]; then source ~/.bashrc; fi
  - |-
-    echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
-  - IFS=','
-  - for CXXLOCAL in $CXXSTD; do  (cd libs/config/test && ../../../b2 config_info_travis_install toolset=$TOOLSET cxxstd=$CXXLOCAL $CXXSTD_DIALECT && echo With Standard Version $CXXLOCAL && ./config_info_travis && rm ./config_info_travis)  done
-  - unset IFS
+    echo "using $TOOLSET : : $COMPILER : <cxxflags>$EXTRA_FLAGS <linkflags>$EXTRA_FLAGS ;" > ~/user-config.jam
+  - ./b2 libs/config/test//print_config_info toolset=$TOOLSET cxxstd=$CXXSTD $CXXSTD_DIALECT
  - ./b2 -j3 libs/config/test toolset=$TOOLSET cxxstd=$CXXSTD $CXXSTD_DIALECT

 notifications:
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -0,0 +1,34 @@
+# Copyright 2018 Mike Dev
+# Copyright 2019 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
+#
+#  CAUTION!!!!
+#
+# This addition to Boost.Config should be considered experimental and is part
+# of an ongoing effort to add CMake support Boost-wide.
+#
+# IT IS HIGHLY LIKELY THAT THIS FILE WILL CHANGE WITHOUT NOTICE!!!
+#
+# DO NOT RELY ON THE CONTENTS OF THIS FILE!!!
+#
+
+# We support CMake 3.5, but prefer 3.16 policies and behavior
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(boost_config VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+
+add_library(boost_config INTERFACE)
+add_library(Boost::config ALIAS boost_config)
+
+target_include_directories(boost_config INTERFACE include)
+
+# boost_install requires PROJECT_VERSION
+# Without the superproject, we don't have any, so skip installation
+
+if(BOOST_SUPERPROJECT_VERSION)
+
+  include(BoostInstall)
+  boost_install(TARGETS boost_config HEADER_DIRECTORY include/)
+
+endif()
--- a/README.md
+++ b/README.md
@@ -0,0 +1,42 @@
+Boost Config Library
+============================
+
+This library provides configuration support for the Boost C++ libraries.
+
+The full documentation is available on [boost.org](http://www.boost.org/doc/libs/release/libs/config/index.html).
+
+|                  |  Master  |   Develop   |
+|------------------|----------|-------------|
+| Travis           | [![Build Status](https://travis-ci.org/boostorg/config.svg?branch=master)](https://travis-ci.org/boostorg/config)  |  [![Build Status](https://travis-ci.org/boostorg/config.png)](https://travis-ci.org/boostorg/config) |
+| Appveyor         | [![Build status](https://ci.appveyor.com/api/projects/status/wo2n2mhoy8vegmuo/branch/master?svg=true)](https://ci.appveyor.com/project/jzmaddock/config/branch/master) | [![Build status](https://ci.appveyor.com/api/projects/status/wo2n2mhoy8vegmuo/branch/develop?svg=true)](https://ci.appveyor.com/project/jzmaddock/config/branch/develop) |
+
+## Support, bugs and feature requests ##
+
+Bugs and feature requests can be reported through the [Gitub issue tracker](https://github.com/boostorg/config/issues)
+(see [open issues](https://github.com/boostorg/config/issues) and
+[closed issues](https://github.com/boostorg/config/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aclosed)).
+
+You can submit your changes through a [pull request](https://github.com/boostorg/config/pulls).
+
+There is no mailing-list specific to Boost Config, although you can use the general-purpose Boost [mailing-list](http://lists.boost.org/mailman/listinfo.cgi/boost-users) using the tag [config].
+
+
+## Development ##
+
+Clone the whole boost project, which includes the individual Boost projects as submodules ([see boost+git doc](https://github.com/boostorg/boost/wiki/Getting-Started)): 
+
+    git clone https://github.com/boostorg/boost
+    cd boost
+    git submodule update --init
+
+The Boost Config Library is located in `libs/config/`. 
+
+### Running tests ###
+First, make sure you are in `libs/config/test`. 
+You can either run all the tests listed in `Jamfile.v2` or run a single test:
+
+    ../../../b2                        <- run all tests
+    ../../../b2 config_info            <- single test
+
+### For developers ###
+Please check the [Guidelines for Boost Authors](http://www.boost.org/doc/libs/release/libs/config/doc/html/boost_config/guidelines_for_boost_authors.html). from the full documentation.
--- a/appveyor.bat
+++ b/appveyor.bat
@@ -1,12 +0,0 @@
-IF NOT DEFINED CXXSTD (
-ECHO %ARGS:"=%
-..\..\..\b2 config_info_travis_install %ARGS:"=%
-config_info_travis
-del config_info_travis.exe
-)
-IF DEFINED CXXSTD FOR %%A IN (%CXXSTD%) DO (
-ECHO %ARGS:"=%
-..\..\..\b2 -a -d2 config_info_travis_install %ARGS:"=% cxxstd=%%A
-config_info_travis
-del config_info_travis.exe
-)
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,6 +22,10 @@ environment:
      ARGS: --toolset=msvc-14.1 address-model=32
    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
      ARGS: --toolset=msvc-14.1 address-model=64 cxxflags=-std:c++latest cxxflags=-permissive-
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=clang-win address-model=64
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=clang-win address-model=32
    - ARGS: --toolset=msvc-9.0  address-model=32
    - ARGS: --toolset=msvc-10.0 address-model=32
    - ARGS: --toolset=msvc-11.0 address-model=32
@@ -52,6 +56,8 @@ install:
  - cd boost-root
  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\config
  - git submodule update --init tools/build
+  - git submodule update --init tools/boost_install
+  - git submodule update --init libs/headers
  - git submodule update --init libs/detail
  - git submodule update --init libs/core
  - git submodule update --init libs/assert
@@ -63,5 +69,5 @@ build: off

 test_script:
  - cd libs\config\test
-  - ..\appveyor.bat
+  - ..\..\..\b2 print_config_info %ARGS% cxxstd=%CXXSTD%
  - ..\..\..\b2 -j3 %ARGS% cxxstd=%CXXSTD%
--- a/checks/Jamfile.v2
+++ b/checks/Jamfile.v2
@@ -1,6 +1,6 @@
 #
 # *** DO NOT EDIT THIS FILE BY HAND ***
-# This file was automatically generated on Wed Apr 18 20:03:40 2018
+# This file was automatically generated on Mon Dec 09 09:47:38 2019
 #  by libs/config/tools/generate.cpp
 # Copyright John Maddock.
 # Use, modification and distribution are subject to the 
@@ -69,6 +69,7 @@ obj cxx11_alignas : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ALIGNAS ;
 obj cxx11_allocator : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ALLOCATOR ;
 obj cxx11_atomic_smart_ptr : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ATOMIC_SMART_PTR ;
 obj cxx11_defaulted_moves : test_case.cpp : <define>TEST_BOOST_NO_CXX11_DEFAULTED_MOVES ;
+obj cxx11_hdr_exception : test_case.cpp : <define>TEST_BOOST_NO_CXX11_HDR_EXCEPTION ;
 obj cxx11_final : test_case.cpp : <define>TEST_BOOST_NO_CXX11_FINAL ;
 obj cxx11_hdr_array : test_case.cpp : <define>TEST_BOOST_NO_CXX11_HDR_ARRAY ;
 obj cxx11_hdr_atomic : test_case.cpp : <define>TEST_BOOST_NO_CXX11_HDR_ATOMIC ;
@@ -112,6 +113,9 @@ obj cxx14_return_type_deduction : test_case.cpp : <define>TEST_BOOST_NO_CXX14_RE
 obj cxx14_std_exchange : test_case.cpp : <define>TEST_BOOST_NO_CXX14_STD_EXCHANGE ;
 obj cxx14_variable_templates : test_case.cpp : <define>TEST_BOOST_NO_CXX14_VARIABLE_TEMPLATES ;
 obj cxx17_fold_expressions : test_case.cpp : <define>TEST_BOOST_NO_CXX17_FOLD_EXPRESSIONS ;
+obj cxx17_hdr_optional : test_case.cpp : <define>TEST_BOOST_NO_CXX17_HDR_OPTIONAL ;
+obj cxx17_hdr_string_view : test_case.cpp : <define>TEST_BOOST_NO_CXX17_HDR_STRING_VIEW ;
+obj cxx17_hdr_variant : test_case.cpp : <define>TEST_BOOST_NO_CXX17_HDR_VARIANT ;
 obj cxx17_if_constexpr : test_case.cpp : <define>TEST_BOOST_NO_CXX17_IF_CONSTEXPR ;
 obj cxx17_inline_variables : test_case.cpp : <define>TEST_BOOST_NO_CXX17_INLINE_VARIABLES ;
 obj cxx17_iterator_traits : test_case.cpp : <define>TEST_BOOST_NO_CXX17_ITERATOR_TRAITS ;
@@ -197,6 +201,7 @@ obj typeid : test_case.cpp : <define>TEST_BOOST_NO_TYPEID ;
 obj typename_with_ctor : test_case.cpp : <define>TEST_BOOST_NO_TYPENAME_WITH_CTOR ;
 obj cxx11_unicode_literals : test_case.cpp : <define>TEST_BOOST_NO_CXX11_UNICODE_LITERALS ;
 obj cxx11_unified_initialization_syntax : test_case.cpp : <define>TEST_BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX ;
+obj cxx11_unrestricted_union : test_case.cpp : <define>TEST_BOOST_NO_CXX11_UNRESTRICTED_UNION ;
 obj boost_function_scope_using_declaration_breaks_adl : test_case.cpp : <define>TEST_BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL ;
 obj using_declaration_overloads_from_typename_base : test_case.cpp : <define>TEST_BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE ;
 obj using_template : test_case.cpp : <define>TEST_BOOST_NO_USING_TEMPLATE ;
@@ -204,4 +209,278 @@ obj cxx11_variadic_macros : test_case.cpp : <define>TEST_BOOST_NO_CXX11_VARIADIC
 obj cxx11_variadic_templates : test_case.cpp : <define>TEST_BOOST_NO_CXX11_VARIADIC_TEMPLATES ;
 obj void_returns : test_case.cpp : <define>TEST_BOOST_NO_VOID_RETURNS ;
 obj intrinsic_wchar_t : test_case.cpp : <define>TEST_BOOST_NO_INTRINSIC_WCHAR_T ;
+obj cpp_impl_destroying_delete_20 : std/cpp_impl_destroying_delete_20.cpp ;
+alias cpp_impl_destroying_delete : cpp_impl_destroying_delete_20 ;
+obj cpp_lib_destroying_delete_20 : std/cpp_lib_destroying_delete_20.cpp ;
+alias cpp_lib_destroying_delete : cpp_lib_destroying_delete_20 ;
+obj cpp_char8_t_20 : std/cpp_char8_t_20.cpp ;
+alias cpp_char8_t : cpp_char8_t_20 ;
+obj cpp_impl_three_way_comparison_20 : std/cpp_impl_three_way_comparison_20.cpp ;
+alias cpp_impl_three_way_comparison : cpp_impl_three_way_comparison_20 ;
+obj cpp_lib_three_way_comparison_20 : std/cpp_lib_three_way_comparison_20.cpp ;
+alias cpp_lib_three_way_comparison : cpp_lib_three_way_comparison_20 ;
+obj cpp_conditional_explicit_20 : std/cpp_conditional_explicit_20.cpp ;
+alias cpp_conditional_explicit : cpp_conditional_explicit_20 ;
+obj cpp_nontype_template_parameter_class_20 : std/cpp_nontype_template_parameter_class_20.cpp ;
+alias cpp_nontype_template_parameter_class : cpp_nontype_template_parameter_class_20 ;
+obj cpp_lib_char8_t_20 : std/cpp_lib_char8_t_20.cpp ;
+alias cpp_lib_char8_t : cpp_lib_char8_t_20 ;
+obj cpp_lib_concepts_20 : std/cpp_lib_concepts_20.cpp ;
+alias cpp_lib_concepts : cpp_lib_concepts_20 ;
+obj cpp_lib_constexpr_swap_algorithms_20 : std/cpp_lib_constexpr_swap_algorithms_20.cpp ;
+alias cpp_lib_constexpr_swap_algorithms : cpp_lib_constexpr_swap_algorithms_20 ;
+obj cpp_lib_constexpr_misc_20 : std/cpp_lib_constexpr_misc_20.cpp ;
+alias cpp_lib_constexpr_misc : cpp_lib_constexpr_misc_20 ;
+obj cpp_lib_bind_front_20 : std/cpp_lib_bind_front_20.cpp ;
+alias cpp_lib_bind_front : cpp_lib_bind_front_20 ;
+obj cpp_lib_is_constant_evaluated_20 : std/cpp_lib_is_constant_evaluated_20.cpp ;
+alias cpp_lib_is_constant_evaluated : cpp_lib_is_constant_evaluated_20 ;
+obj cpp_lib_erase_if_20 : std/cpp_lib_erase_if_20.cpp ;
+alias cpp_lib_erase_if : cpp_lib_erase_if_20 ;
+obj cpp_lib_list_remove_return_type_20 : std/cpp_lib_list_remove_return_type_20.cpp ;
+alias cpp_lib_list_remove_return_type : cpp_lib_list_remove_return_type_20 ;
+obj cpp_lib_generic_unordered_lookup_20 : std/cpp_lib_generic_unordered_lookup_20.cpp ;
+alias cpp_lib_generic_unordered_lookup : cpp_lib_generic_unordered_lookup_20 ;
+obj cpp_lib_ranges_20 : std/cpp_lib_ranges_20.cpp ;
+alias cpp_lib_ranges : cpp_lib_ranges_20 ;
+obj cpp_lib_bit_cast_20 : std/cpp_lib_bit_cast_20.cpp ;
+alias cpp_lib_bit_cast : cpp_lib_bit_cast_20 ;
+obj cpp_lib_atomic_ref_20 : std/cpp_lib_atomic_ref_20.cpp ;
+alias cpp_lib_atomic_ref : cpp_lib_atomic_ref_20 ;
+obj cpp_hex_float_17 : std/cpp_hex_float_17.cpp ;
+alias cpp_hex_float : cpp_hex_float_17 ;
+obj cpp_inline_variables_17 : std/cpp_inline_variables_17.cpp ;
+alias cpp_inline_variables : cpp_inline_variables_17 ;
+obj cpp_aligned_new_17 : std/cpp_aligned_new_17.cpp ;
+alias cpp_aligned_new : cpp_aligned_new_17 ;
+obj cpp_guaranteed_copy_elision_17 : std/cpp_guaranteed_copy_elision_17.cpp ;
+alias cpp_guaranteed_copy_elision : cpp_guaranteed_copy_elision_17 ;
+obj cpp_noexcept_function_type_17 : std/cpp_noexcept_function_type_17.cpp ;
+alias cpp_noexcept_function_type : cpp_noexcept_function_type_17 ;
+obj cpp_fold_expressions_17 : std/cpp_fold_expressions_17.cpp ;
+alias cpp_fold_expressions : cpp_fold_expressions_17 ;
+obj cpp_capture_star_this_17 : std/cpp_capture_star_this_17.cpp ;
+alias cpp_capture_star_this : cpp_capture_star_this_17 ;
+obj cpp_constexpr_17 : std/cpp_constexpr_17.cpp ;
+obj cpp_if_constexpr_17 : std/cpp_if_constexpr_17.cpp ;
+alias cpp_if_constexpr : cpp_if_constexpr_17 ;
+obj cpp_range_based_for_17 : std/cpp_range_based_for_17.cpp ;
+obj cpp_static_assert_17 : std/cpp_static_assert_17.cpp ;
+obj cpp_deduction_guides_17 : std/cpp_deduction_guides_17.cpp ;
+alias cpp_deduction_guides : cpp_deduction_guides_17 ;
+obj cpp_nontype_template_parameter_auto_17 : std/cpp_nontype_template_parameter_auto_17.cpp ;
+alias cpp_nontype_template_parameter_auto : cpp_nontype_template_parameter_auto_17 ;
+obj cpp_namespace_attributes_17 : std/cpp_namespace_attributes_17.cpp ;
+alias cpp_namespace_attributes : cpp_namespace_attributes_17 ;
+obj cpp_enumerator_attributes_17 : std/cpp_enumerator_attributes_17.cpp ;
+alias cpp_enumerator_attributes : cpp_enumerator_attributes_17 ;
+obj cpp_inheriting_constructors_17 : std/cpp_inheriting_constructors_17.cpp ;
+obj cpp_variadic_using_17 : std/cpp_variadic_using_17.cpp ;
+alias cpp_variadic_using : cpp_variadic_using_17 ;
+obj cpp_structured_bindings_17 : std/cpp_structured_bindings_17.cpp ;
+alias cpp_structured_bindings : cpp_structured_bindings_17 ;
+obj cpp_aggregate_bases_17 : std/cpp_aggregate_bases_17.cpp ;
+alias cpp_aggregate_bases : cpp_aggregate_bases_17 ;
+obj cpp_nontype_template_args_17 : std/cpp_nontype_template_args_17.cpp ;
+alias cpp_nontype_template_args : cpp_nontype_template_args_17 ;
+obj cpp_template_template_args_17 : std/cpp_template_template_args_17.cpp ;
+alias cpp_template_template_args : cpp_template_template_args_17 ;
+obj cpp_lib_byte_17 : std/cpp_lib_byte_17.cpp ;
+alias cpp_lib_byte : cpp_lib_byte_17 ;
+obj cpp_lib_hardware_interference_size_17 : std/cpp_lib_hardware_interference_size_17.cpp ;
+alias cpp_lib_hardware_interference_size : cpp_lib_hardware_interference_size_17 ;
+obj cpp_lib_launder_17 : std/cpp_lib_launder_17.cpp ;
+alias cpp_lib_launder : cpp_lib_launder_17 ;
+obj cpp_lib_uncaught_exceptions_17 : std/cpp_lib_uncaught_exceptions_17.cpp ;
+alias cpp_lib_uncaught_exceptions : cpp_lib_uncaught_exceptions_17 ;
+obj cpp_lib_as_const_17 : std/cpp_lib_as_const_17.cpp ;
+alias cpp_lib_as_const : cpp_lib_as_const_17 ;
+obj cpp_lib_make_from_tuple_17 : std/cpp_lib_make_from_tuple_17.cpp ;
+alias cpp_lib_make_from_tuple : cpp_lib_make_from_tuple_17 ;
+obj cpp_lib_apply_17 : std/cpp_lib_apply_17.cpp ;
+alias cpp_lib_apply : cpp_lib_apply_17 ;
+obj cpp_lib_optional_17 : std/cpp_lib_optional_17.cpp ;
+alias cpp_lib_optional : cpp_lib_optional_17 ;
+obj cpp_lib_variant_17 : std/cpp_lib_variant_17.cpp ;
+alias cpp_lib_variant : cpp_lib_variant_17 ;
+obj cpp_lib_any_17 : std/cpp_lib_any_17.cpp ;
+alias cpp_lib_any : cpp_lib_any_17 ;
+obj cpp_lib_addressof_constexpr_17 : std/cpp_lib_addressof_constexpr_17.cpp ;
+alias cpp_lib_addressof_constexpr : cpp_lib_addressof_constexpr_17 ;
+obj cpp_lib_raw_memory_algorithms_17 : std/cpp_lib_raw_memory_algorithms_17.cpp ;
+alias cpp_lib_raw_memory_algorithms : cpp_lib_raw_memory_algorithms_17 ;
+obj cpp_lib_transparent_operators_17 : std/cpp_lib_transparent_operators_17.cpp ;
+obj cpp_lib_enable_shared_from_this_17 : std/cpp_lib_enable_shared_from_this_17.cpp ;
+alias cpp_lib_enable_shared_from_this : cpp_lib_enable_shared_from_this_17 ;
+obj cpp_lib_shared_ptr_weak_type_17 : std/cpp_lib_shared_ptr_weak_type_17.cpp ;
+alias cpp_lib_shared_ptr_weak_type : cpp_lib_shared_ptr_weak_type_17 ;
+obj cpp_lib_shared_ptr_arrays_17 : std/cpp_lib_shared_ptr_arrays_17.cpp ;
+alias cpp_lib_shared_ptr_arrays : cpp_lib_shared_ptr_arrays_17 ;
+obj cpp_lib_memory_resource_17 : std/cpp_lib_memory_resource_17.cpp ;
+alias cpp_lib_memory_resource : cpp_lib_memory_resource_17 ;
+obj cpp_lib_boyer_moore_searcher_17 : std/cpp_lib_boyer_moore_searcher_17.cpp ;
+alias cpp_lib_boyer_moore_searcher : cpp_lib_boyer_moore_searcher_17 ;
+obj cpp_lib_invoke_17 : std/cpp_lib_invoke_17.cpp ;
+alias cpp_lib_invoke : cpp_lib_invoke_17 ;
+obj cpp_lib_not_fn_17 : std/cpp_lib_not_fn_17.cpp ;
+alias cpp_lib_not_fn : cpp_lib_not_fn_17 ;
+obj cpp_lib_void_t_17 : std/cpp_lib_void_t_17.cpp ;
+alias cpp_lib_void_t : cpp_lib_void_t_17 ;
+obj cpp_lib_bool_constant_17 : std/cpp_lib_bool_constant_17.cpp ;
+alias cpp_lib_bool_constant : cpp_lib_bool_constant_17 ;
+obj cpp_lib_type_trait_variable_templates_17 : std/cpp_lib_type_trait_variable_templates_17.cpp ;
+alias cpp_lib_type_trait_variable_templates : cpp_lib_type_trait_variable_templates_17 ;
+obj cpp_lib_logical_traits_17 : std/cpp_lib_logical_traits_17.cpp ;
+alias cpp_lib_logical_traits : cpp_lib_logical_traits_17 ;
+obj cpp_lib_is_swappable_17 : std/cpp_lib_is_swappable_17.cpp ;
+alias cpp_lib_is_swappable : cpp_lib_is_swappable_17 ;
+obj cpp_lib_is_invocable_17 : std/cpp_lib_is_invocable_17.cpp ;
+alias cpp_lib_is_invocable : cpp_lib_is_invocable_17 ;
+obj cpp_lib_has_unique_object_representations_17 : std/cpp_lib_has_unique_object_representations_17.cpp ;
+alias cpp_lib_has_unique_object_representations : cpp_lib_has_unique_object_representations_17 ;
+obj cpp_lib_is_aggregate_17 : std/cpp_lib_is_aggregate_17.cpp ;
+alias cpp_lib_is_aggregate : cpp_lib_is_aggregate_17 ;
+obj cpp_lib_chrono_17 : std/cpp_lib_chrono_17.cpp ;
+alias cpp_lib_chrono : cpp_lib_chrono_17 ;
+obj cpp_lib_execution_17 : std/cpp_lib_execution_17.cpp ;
+alias cpp_lib_execution : cpp_lib_execution_17 ;
+obj cpp_lib_parallel_algorithm_17 : std/cpp_lib_parallel_algorithm_17.cpp ;
+alias cpp_lib_parallel_algorithm : cpp_lib_parallel_algorithm_17 ;
+obj cpp_lib_to_chars_17 : std/cpp_lib_to_chars_17.cpp ;
+alias cpp_lib_to_chars : cpp_lib_to_chars_17 ;
+obj cpp_lib_string_view_17 : std/cpp_lib_string_view_17.cpp ;
+alias cpp_lib_string_view : cpp_lib_string_view_17 ;
+obj cpp_lib_allocator_traits_is_always_equal_17 : std/cpp_lib_allocator_traits_is_always_equal_17.cpp ;
+alias cpp_lib_allocator_traits_is_always_equal : cpp_lib_allocator_traits_is_always_equal_17 ;
+obj cpp_lib_incomplete_container_elements_17 : std/cpp_lib_incomplete_container_elements_17.cpp ;
+alias cpp_lib_incomplete_container_elements : cpp_lib_incomplete_container_elements_17 ;
+obj cpp_lib_map_try_emplace_17 : std/cpp_lib_map_try_emplace_17.cpp ;
+alias cpp_lib_map_try_emplace : cpp_lib_map_try_emplace_17 ;
+obj cpp_lib_unordered_map_try_emplace_17 : std/cpp_lib_unordered_map_try_emplace_17.cpp ;
+alias cpp_lib_unordered_map_try_emplace : cpp_lib_unordered_map_try_emplace_17 ;
+obj cpp_lib_node_extract_17 : std/cpp_lib_node_extract_17.cpp ;
+alias cpp_lib_node_extract : cpp_lib_node_extract_17 ;
+obj cpp_lib_array_constexpr_17 : std/cpp_lib_array_constexpr_17.cpp ;
+alias cpp_lib_array_constexpr : cpp_lib_array_constexpr_17 ;
+obj cpp_lib_nonmember_container_access_17 : std/cpp_lib_nonmember_container_access_17.cpp ;
+alias cpp_lib_nonmember_container_access : cpp_lib_nonmember_container_access_17 ;
+obj cpp_lib_sample_17 : std/cpp_lib_sample_17.cpp ;
+alias cpp_lib_sample : cpp_lib_sample_17 ;
+obj cpp_lib_clamp_17 : std/cpp_lib_clamp_17.cpp ;
+alias cpp_lib_clamp : cpp_lib_clamp_17 ;
+obj cpp_lib_gcd_lcm_17 : std/cpp_lib_gcd_lcm_17.cpp ;
+alias cpp_lib_gcd_lcm : cpp_lib_gcd_lcm_17 ;
+obj cpp_lib_hypot_17 : std/cpp_lib_hypot_17.cpp ;
+alias cpp_lib_hypot : cpp_lib_hypot_17 ;
+obj cpp_lib_math_special_functions_17 : std/cpp_lib_math_special_functions_17.cpp ;
+alias cpp_lib_math_special_functions : cpp_lib_math_special_functions_17 ;
+obj cpp_lib_filesystem_17 : std/cpp_lib_filesystem_17.cpp ;
+alias cpp_lib_filesystem : cpp_lib_filesystem_17 ;
+obj cpp_lib_atomic_is_always_lock_free_17 : std/cpp_lib_atomic_is_always_lock_free_17.cpp ;
+alias cpp_lib_atomic_is_always_lock_free : cpp_lib_atomic_is_always_lock_free_17 ;
+obj cpp_lib_shared_mutex_17 : std/cpp_lib_shared_mutex_17.cpp ;
+alias cpp_lib_shared_mutex : cpp_lib_shared_mutex_17 ;
+obj cpp_lib_scoped_lock_17 : std/cpp_lib_scoped_lock_17.cpp ;
+alias cpp_lib_scoped_lock : cpp_lib_scoped_lock_17 ;
+obj cpp_binary_literals_14 : std/cpp_binary_literals_14.cpp ;
+alias cpp_binary_literals : cpp_binary_literals_14 ;
+obj cpp_init_captures_14 : std/cpp_init_captures_14.cpp ;
+alias cpp_init_captures : cpp_init_captures_14 ;
+obj cpp_generic_lambdas_14 : std/cpp_generic_lambdas_14.cpp ;
+alias cpp_generic_lambdas : cpp_generic_lambdas_14 ;
+obj cpp_sized_deallocation_14 : std/cpp_sized_deallocation_14.cpp ;
+alias cpp_sized_deallocation : cpp_sized_deallocation_14 ;
+obj cpp_constexpr_14 : std/cpp_constexpr_14.cpp ;
+obj cpp_decltype_auto_14 : std/cpp_decltype_auto_14.cpp ;
+alias cpp_decltype_auto : cpp_decltype_auto_14 ;
+obj cpp_return_type_deduction_14 : std/cpp_return_type_deduction_14.cpp ;
+alias cpp_return_type_deduction : cpp_return_type_deduction_14 ;
+obj cpp_aggregate_nsdmi_14 : std/cpp_aggregate_nsdmi_14.cpp ;
+alias cpp_aggregate_nsdmi : cpp_aggregate_nsdmi_14 ;
+obj cpp_variable_templates_14 : std/cpp_variable_templates_14.cpp ;
+alias cpp_variable_templates : cpp_variable_templates_14 ;
+obj cpp_lib_integer_sequence_14 : std/cpp_lib_integer_sequence_14.cpp ;
+alias cpp_lib_integer_sequence : cpp_lib_integer_sequence_14 ;
+obj cpp_lib_exchange_function_14 : std/cpp_lib_exchange_function_14.cpp ;
+alias cpp_lib_exchange_function : cpp_lib_exchange_function_14 ;
+obj cpp_lib_tuples_by_type_14 : std/cpp_lib_tuples_by_type_14.cpp ;
+alias cpp_lib_tuples_by_type : cpp_lib_tuples_by_type_14 ;
+obj cpp_lib_tuple_element_t_14 : std/cpp_lib_tuple_element_t_14.cpp ;
+alias cpp_lib_tuple_element_t : cpp_lib_tuple_element_t_14 ;
+obj cpp_lib_make_unique_14 : std/cpp_lib_make_unique_14.cpp ;
+alias cpp_lib_make_unique : cpp_lib_make_unique_14 ;
+obj cpp_lib_transparent_operators_14 : std/cpp_lib_transparent_operators_14.cpp ;
+alias cpp_lib_transparent_operators : cpp_lib_transparent_operators_14 ;
+obj cpp_lib_integral_constant_callable_14 : std/cpp_lib_integral_constant_callable_14.cpp ;
+alias cpp_lib_integral_constant_callable : cpp_lib_integral_constant_callable_14 ;
+obj cpp_lib_transformation_trait_aliases_14 : std/cpp_lib_transformation_trait_aliases_14.cpp ;
+alias cpp_lib_transformation_trait_aliases : cpp_lib_transformation_trait_aliases_14 ;
+obj cpp_lib_result_of_sfinae_14 : std/cpp_lib_result_of_sfinae_14.cpp ;
+alias cpp_lib_result_of_sfinae : cpp_lib_result_of_sfinae_14 ;
+obj cpp_lib_is_final_14 : std/cpp_lib_is_final_14.cpp ;
+alias cpp_lib_is_final : cpp_lib_is_final_14 ;
+obj cpp_lib_is_null_pointer_14 : std/cpp_lib_is_null_pointer_14.cpp ;
+alias cpp_lib_is_null_pointer : cpp_lib_is_null_pointer_14 ;
+obj cpp_lib_chrono_udls_14 : std/cpp_lib_chrono_udls_14.cpp ;
+alias cpp_lib_chrono_udls : cpp_lib_chrono_udls_14 ;
+obj cpp_lib_string_udls_14 : std/cpp_lib_string_udls_14.cpp ;
+alias cpp_lib_string_udls : cpp_lib_string_udls_14 ;
+obj cpp_lib_generic_associative_lookup_14 : std/cpp_lib_generic_associative_lookup_14.cpp ;
+alias cpp_lib_generic_associative_lookup : cpp_lib_generic_associative_lookup_14 ;
+obj cpp_lib_null_iterators_14 : std/cpp_lib_null_iterators_14.cpp ;
+alias cpp_lib_null_iterators : cpp_lib_null_iterators_14 ;
+obj cpp_lib_make_reverse_iterator_14 : std/cpp_lib_make_reverse_iterator_14.cpp ;
+alias cpp_lib_make_reverse_iterator : cpp_lib_make_reverse_iterator_14 ;
+obj cpp_lib_robust_nonmodifying_seq_ops_14 : std/cpp_lib_robust_nonmodifying_seq_ops_14.cpp ;
+alias cpp_lib_robust_nonmodifying_seq_ops : cpp_lib_robust_nonmodifying_seq_ops_14 ;
+obj cpp_lib_complex_udls_14 : std/cpp_lib_complex_udls_14.cpp ;
+alias cpp_lib_complex_udls : cpp_lib_complex_udls_14 ;
+obj cpp_lib_quoted_string_io_14 : std/cpp_lib_quoted_string_io_14.cpp ;
+alias cpp_lib_quoted_string_io : cpp_lib_quoted_string_io_14 ;
+obj cpp_lib_shared_timed_mutex_14 : std/cpp_lib_shared_timed_mutex_14.cpp ;
+alias cpp_lib_shared_timed_mutex : cpp_lib_shared_timed_mutex_14 ;
+obj cpp_unicode_characters_11 : std/cpp_unicode_characters_11.cpp ;
+alias cpp_unicode_characters : cpp_unicode_characters_11 ;
+obj cpp_raw_strings_11 : std/cpp_raw_strings_11.cpp ;
+alias cpp_raw_strings : cpp_raw_strings_11 ;
+obj cpp_unicode_literals_11 : std/cpp_unicode_literals_11.cpp ;
+alias cpp_unicode_literals : cpp_unicode_literals_11 ;
+obj cpp_user_defined_literals_11 : std/cpp_user_defined_literals_11.cpp ;
+alias cpp_user_defined_literals : cpp_user_defined_literals_11 ;
+obj cpp_threadsafe_static_init_11 : std/cpp_threadsafe_static_init_11.cpp ;
+alias cpp_threadsafe_static_init : cpp_threadsafe_static_init_11 ;
+obj cpp_lambdas_11 : std/cpp_lambdas_11.cpp ;
+alias cpp_lambdas : cpp_lambdas_11 ;
+obj cpp_constexpr_11 : std/cpp_constexpr_11.cpp ;
+alias cpp_constexpr : cpp_constexpr_11 ;
+obj cpp_range_based_for_11 : std/cpp_range_based_for_11.cpp ;
+alias cpp_range_based_for : cpp_range_based_for_11 ;
+obj cpp_static_assert_11 : std/cpp_static_assert_11.cpp ;
+alias cpp_static_assert : cpp_static_assert_11 ;
+obj cpp_decltype_11 : std/cpp_decltype_11.cpp ;
+alias cpp_decltype : cpp_decltype_11 ;
+obj cpp_attributes_11 : std/cpp_attributes_11.cpp ;
+alias cpp_attributes : cpp_attributes_11 ;
+obj cpp_rvalue_references_11 : std/cpp_rvalue_references_11.cpp ;
+alias cpp_rvalue_references : cpp_rvalue_references_11 ;
+obj cpp_variadic_templates_11 : std/cpp_variadic_templates_11.cpp ;
+alias cpp_variadic_templates : cpp_variadic_templates_11 ;
+obj cpp_initializer_lists_11 : std/cpp_initializer_lists_11.cpp ;
+alias cpp_initializer_lists : cpp_initializer_lists_11 ;
+obj cpp_explicit_conversion_11 : std/cpp_explicit_conversion_11.cpp ;
+alias cpp_explicit_conversion : cpp_explicit_conversion_11 ;
+obj cpp_delegating_constructors_11 : std/cpp_delegating_constructors_11.cpp ;
+alias cpp_delegating_constructors : cpp_delegating_constructors_11 ;
+obj cpp_nsdmi_11 : std/cpp_nsdmi_11.cpp ;
+alias cpp_nsdmi : cpp_nsdmi_11 ;
+obj cpp_inheriting_constructors_11 : std/cpp_inheriting_constructors_11.cpp ;
+alias cpp_inheriting_constructors : cpp_inheriting_constructors_11 ;
+obj cpp_ref_qualifiers_11 : std/cpp_ref_qualifiers_11.cpp ;
+alias cpp_ref_qualifiers : cpp_ref_qualifiers_11 ;
+obj cpp_alias_templates_11 : std/cpp_alias_templates_11.cpp ;
+alias cpp_alias_templates : cpp_alias_templates_11 ;
+obj cpp_rtti_03 : std/cpp_rtti_03.cpp ;
+alias cpp_rtti : cpp_rtti_03 ;
+obj cpp_exceptions_03 : std/cpp_exceptions_03.cpp ;
+alias cpp_exceptions : cpp_exceptions_03 ;

--- a/checks/architecture/Jamroot.jam
+++ b/checks/architecture/Jamroot.jam
@@ -19,5 +19,7 @@ obj arm      : arm.cpp ;
 obj combined : combined.cpp ;
 obj mips1    : mips1.cpp ;
 obj power    : power.cpp ;
+obj riscv    : riscv.cpp ;
 obj sparc    : sparc.cpp ;
 obj x86      : x86.cpp ;
+obj s390x    : s390x.cpp ;
--- a/checks/architecture/mips1.cpp
+++ b/checks/architecture/mips1.cpp
@@ -6,6 +6,6 @@
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)

-#if !((defined(__mips) && __mips == 1) || defined(_MIPS_ISA_MIPS1) || defined(_R3000))
+#if !(defined(__mips) || defined(_MIPS_ISA_MIPS1) || defined(_R3000))
 #error "Not MIPS1"
 #endif
--- a/checks/architecture/riscv.cpp
+++ b/checks/architecture/riscv.cpp
@@ -0,0 +1,10 @@
+// riscv.cpp
+//
+// Copyright Andreas Schwab 2019
+// 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)
+
+#if !defined(__riscv)
+#error "Not RISC-V"
+#endif
--- a/checks/architecture/s390x.cpp
+++ b/checks/architecture/s390x.cpp
@@ -0,0 +1,11 @@
+// s390x.cpp
+//
+// Copyright (c) 2012 Steven Watanabe
+//
+// 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)
+
+#if !defined(__s390x__)
+#error "Not S390x"
+#endif
--- a/checks/std/cpp_aggregate_bases_17.cpp
+++ b/checks/std/cpp_aggregate_bases_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_aggregate_bases
+#error "Macro << __cpp_aggregate_bases is not set"
+#endif
+
+#if __cpp_aggregate_bases < 201603
+#error "Macro __cpp_aggregate_bases had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_aggregate_nsdmi_14.cpp
+++ b/checks/std/cpp_aggregate_nsdmi_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_aggregate_nsdmi
+#error "Macro << __cpp_aggregate_nsdmi is not set"
+#endif
+
+#if __cpp_aggregate_nsdmi < 201304
+#error "Macro __cpp_aggregate_nsdmi had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_alias_templates_11.cpp
+++ b/checks/std/cpp_alias_templates_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_alias_templates
+#error "Macro << __cpp_alias_templates is not set"
+#endif
+
+#if __cpp_alias_templates < 200704
+#error "Macro __cpp_alias_templates had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_aligned_new_17.cpp
+++ b/checks/std/cpp_aligned_new_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_aligned_new
+#error "Macro << __cpp_aligned_new is not set"
+#endif
+
+#if __cpp_aligned_new < 201606
+#error "Macro __cpp_aligned_new had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_attributes_11.cpp
+++ b/checks/std/cpp_attributes_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_attributes
+#error "Macro << __cpp_attributes is not set"
+#endif
+
+#if __cpp_attributes < 200809
+#error "Macro __cpp_attributes had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_binary_literals_14.cpp
+++ b/checks/std/cpp_binary_literals_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_binary_literals
+#error "Macro << __cpp_binary_literals is not set"
+#endif
+
+#if __cpp_binary_literals < 201304
+#error "Macro __cpp_binary_literals had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_capture_star_this_17.cpp
+++ b/checks/std/cpp_capture_star_this_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_capture_star_this
+#error "Macro << __cpp_capture_star_this is not set"
+#endif
+
+#if __cpp_capture_star_this < 201603
+#error "Macro __cpp_capture_star_this had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_char8_t_20.cpp
+++ b/checks/std/cpp_char8_t_20.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_char8_t
+#error "Macro << __cpp_char8_t is not set"
+#endif
+
+#if __cpp_char8_t < 201811
+#error "Macro __cpp_char8_t had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_conditional_explicit_20.cpp
+++ b/checks/std/cpp_conditional_explicit_20.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_conditional_explicit
+#error "Macro << __cpp_conditional_explicit is not set"
+#endif
+
+#if __cpp_conditional_explicit < 201806
+#error "Macro __cpp_conditional_explicit had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_constexpr_11.cpp
+++ b/checks/std/cpp_constexpr_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_constexpr
+#error "Macro << __cpp_constexpr is not set"
+#endif
+
+#if __cpp_constexpr < 200704
+#error "Macro __cpp_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_constexpr_14.cpp
+++ b/checks/std/cpp_constexpr_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_constexpr
+#error "Macro << __cpp_constexpr is not set"
+#endif
+
+#if __cpp_constexpr < 201304
+#error "Macro __cpp_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_constexpr_17.cpp
+++ b/checks/std/cpp_constexpr_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_constexpr
+#error "Macro << __cpp_constexpr is not set"
+#endif
+
+#if __cpp_constexpr < 201603
+#error "Macro __cpp_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_decltype_11.cpp
+++ b/checks/std/cpp_decltype_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_decltype
+#error "Macro << __cpp_decltype is not set"
+#endif
+
+#if __cpp_decltype < 200707
+#error "Macro __cpp_decltype had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_decltype_auto_14.cpp
+++ b/checks/std/cpp_decltype_auto_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_decltype_auto
+#error "Macro << __cpp_decltype_auto is not set"
+#endif
+
+#if __cpp_decltype_auto < 201304
+#error "Macro __cpp_decltype_auto had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_deduction_guides_17.cpp
+++ b/checks/std/cpp_deduction_guides_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_deduction_guides
+#error "Macro << __cpp_deduction_guides is not set"
+#endif
+
+#if __cpp_deduction_guides < 201611
+#error "Macro __cpp_deduction_guides had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_delegating_constructors_11.cpp
+++ b/checks/std/cpp_delegating_constructors_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_delegating_constructors
+#error "Macro << __cpp_delegating_constructors is not set"
+#endif
+
+#if __cpp_delegating_constructors < 200604
+#error "Macro __cpp_delegating_constructors had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_enumerator_attributes_17.cpp
+++ b/checks/std/cpp_enumerator_attributes_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_enumerator_attributes
+#error "Macro << __cpp_enumerator_attributes is not set"
+#endif
+
+#if __cpp_enumerator_attributes < 201411
+#error "Macro __cpp_enumerator_attributes had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_exceptions_03.cpp
+++ b/checks/std/cpp_exceptions_03.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_exceptions
+#error "Macro << __cpp_exceptions is not set"
+#endif
+
+#if __cpp_exceptions < 199711
+#error "Macro __cpp_exceptions had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_explicit_conversion_11.cpp
+++ b/checks/std/cpp_explicit_conversion_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_explicit_conversion
+#error "Macro << __cpp_explicit_conversion is not set"
+#endif
+
+#if __cpp_explicit_conversion < 200710
+#error "Macro __cpp_explicit_conversion had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_fold_expressions_17.cpp
+++ b/checks/std/cpp_fold_expressions_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_fold_expressions
+#error "Macro << __cpp_fold_expressions is not set"
+#endif
+
+#if __cpp_fold_expressions < 201603
+#error "Macro __cpp_fold_expressions had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_generic_lambdas_14.cpp
+++ b/checks/std/cpp_generic_lambdas_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_generic_lambdas
+#error "Macro << __cpp_generic_lambdas is not set"
+#endif
+
+#if __cpp_generic_lambdas < 201304
+#error "Macro __cpp_generic_lambdas had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_guaranteed_copy_elision_17.cpp
+++ b/checks/std/cpp_guaranteed_copy_elision_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_guaranteed_copy_elision
+#error "Macro << __cpp_guaranteed_copy_elision is not set"
+#endif
+
+#if __cpp_guaranteed_copy_elision < 201606
+#error "Macro __cpp_guaranteed_copy_elision had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_hex_float_17.cpp
+++ b/checks/std/cpp_hex_float_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_hex_float
+#error "Macro << __cpp_hex_float is not set"
+#endif
+
+#if __cpp_hex_float < 201603
+#error "Macro __cpp_hex_float had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_if_constexpr_17.cpp
+++ b/checks/std/cpp_if_constexpr_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_if_constexpr
+#error "Macro << __cpp_if_constexpr is not set"
+#endif
+
+#if __cpp_if_constexpr < 201606
+#error "Macro __cpp_if_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_impl_destroying_delete_20.cpp
+++ b/checks/std/cpp_impl_destroying_delete_20.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_impl_destroying_delete
+#error "Macro << __cpp_impl_destroying_delete is not set"
+#endif
+
+#if __cpp_impl_destroying_delete < 201806
+#error "Macro __cpp_impl_destroying_delete had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_impl_three_way_comparison_20.cpp
+++ b/checks/std/cpp_impl_three_way_comparison_20.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_impl_three_way_comparison
+#error "Macro << __cpp_impl_three_way_comparison is not set"
+#endif
+
+#if __cpp_impl_three_way_comparison < 201711
+#error "Macro __cpp_impl_three_way_comparison had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_inheriting_constructors_11.cpp
+++ b/checks/std/cpp_inheriting_constructors_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_inheriting_constructors
+#error "Macro << __cpp_inheriting_constructors is not set"
+#endif
+
+#if __cpp_inheriting_constructors < 200802
+#error "Macro __cpp_inheriting_constructors had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_inheriting_constructors_17.cpp
+++ b/checks/std/cpp_inheriting_constructors_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_inheriting_constructors
+#error "Macro << __cpp_inheriting_constructors is not set"
+#endif
+
+#if __cpp_inheriting_constructors < 201511
+#error "Macro __cpp_inheriting_constructors had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_init_captures_14.cpp
+++ b/checks/std/cpp_init_captures_14.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_init_captures
+#error "Macro << __cpp_init_captures is not set"
+#endif
+
+#if __cpp_init_captures < 201304
+#error "Macro __cpp_init_captures had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_initializer_lists_11.cpp
+++ b/checks/std/cpp_initializer_lists_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_initializer_lists
+#error "Macro << __cpp_initializer_lists is not set"
+#endif
+
+#if __cpp_initializer_lists < 200806
+#error "Macro __cpp_initializer_lists had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_inline_variables_17.cpp
+++ b/checks/std/cpp_inline_variables_17.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_inline_variables
+#error "Macro << __cpp_inline_variables is not set"
+#endif
+
+#if __cpp_inline_variables < 201606
+#error "Macro __cpp_inline_variables had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lambdas_11.cpp
+++ b/checks/std/cpp_lambdas_11.cpp
@@ -0,0 +1,30 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_lambdas
+#error "Macro << __cpp_lambdas is not set"
+#endif
+
+#if __cpp_lambdas < 200907
+#error "Macro __cpp_lambdas had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_addressof_constexpr_17.cpp
+++ b/checks/std/cpp_lib_addressof_constexpr_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <memory>
+
+#ifndef __cpp_lib_addressof_constexpr
+#error "Macro << __cpp_lib_addressof_constexpr is not set"
+#endif
+
+#if __cpp_lib_addressof_constexpr < 201603
+#error "Macro __cpp_lib_addressof_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_allocator_traits_is_always_equal_17.cpp
+++ b/checks/std/cpp_lib_allocator_traits_is_always_equal_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <memory>
+
+#ifndef __cpp_lib_allocator_traits_is_always_equal
+#error "Macro << __cpp_lib_allocator_traits_is_always_equal is not set"
+#endif
+
+#if __cpp_lib_allocator_traits_is_always_equal < 201411
+#error "Macro __cpp_lib_allocator_traits_is_always_equal had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_any_17.cpp
+++ b/checks/std/cpp_lib_any_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <any>
+
+#ifndef __cpp_lib_any
+#error "Macro << __cpp_lib_any is not set"
+#endif
+
+#if __cpp_lib_any < 201606
+#error "Macro __cpp_lib_any had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_apply_17.cpp
+++ b/checks/std/cpp_lib_apply_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <tuple>
+
+#ifndef __cpp_lib_apply
+#error "Macro << __cpp_lib_apply is not set"
+#endif
+
+#if __cpp_lib_apply < 201603
+#error "Macro __cpp_lib_apply had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_array_constexpr_17.cpp
+++ b/checks/std/cpp_lib_array_constexpr_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <iterator>
+
+#ifndef __cpp_lib_array_constexpr
+#error "Macro << __cpp_lib_array_constexpr is not set"
+#endif
+
+#if __cpp_lib_array_constexpr < 201603
+#error "Macro __cpp_lib_array_constexpr had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_as_const_17.cpp
+++ b/checks/std/cpp_lib_as_const_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <utility>
+
+#ifndef __cpp_lib_as_const
+#error "Macro << __cpp_lib_as_const is not set"
+#endif
+
+#if __cpp_lib_as_const < 201510
+#error "Macro __cpp_lib_as_const had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_atomic_is_always_lock_free_17.cpp
+++ b/checks/std/cpp_lib_atomic_is_always_lock_free_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <atomic>
+
+#ifndef __cpp_lib_atomic_is_always_lock_free
+#error "Macro << __cpp_lib_atomic_is_always_lock_free is not set"
+#endif
+
+#if __cpp_lib_atomic_is_always_lock_free < 201603
+#error "Macro __cpp_lib_atomic_is_always_lock_free had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_atomic_ref_20.cpp
+++ b/checks/std/cpp_lib_atomic_ref_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <atomic>
+
+#ifndef __cpp_lib_atomic_ref
+#error "Macro << __cpp_lib_atomic_ref is not set"
+#endif
+
+#if __cpp_lib_atomic_ref < 201806
+#error "Macro __cpp_lib_atomic_ref had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_bind_front_20.cpp
+++ b/checks/std/cpp_lib_bind_front_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <functional>
+
+#ifndef __cpp_lib_bind_front
+#error "Macro << __cpp_lib_bind_front is not set"
+#endif
+
+#if __cpp_lib_bind_front < 201811
+#error "Macro __cpp_lib_bind_front had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_bit_cast_20.cpp
+++ b/checks/std/cpp_lib_bit_cast_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <bit>
+
+#ifndef __cpp_lib_bit_cast
+#error "Macro << __cpp_lib_bit_cast is not set"
+#endif
+
+#if __cpp_lib_bit_cast < 201806
+#error "Macro __cpp_lib_bit_cast had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_bool_constant_17.cpp
+++ b/checks/std/cpp_lib_bool_constant_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_bool_constant
+#error "Macro << __cpp_lib_bool_constant is not set"
+#endif
+
+#if __cpp_lib_bool_constant < 201505
+#error "Macro __cpp_lib_bool_constant had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_boyer_moore_searcher_17.cpp
+++ b/checks/std/cpp_lib_boyer_moore_searcher_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <functional>
+
+#ifndef __cpp_lib_boyer_moore_searcher
+#error "Macro << __cpp_lib_boyer_moore_searcher is not set"
+#endif
+
+#if __cpp_lib_boyer_moore_searcher < 201603
+#error "Macro __cpp_lib_boyer_moore_searcher had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_byte_17.cpp
+++ b/checks/std/cpp_lib_byte_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <cstddef>
+
+#ifndef __cpp_lib_byte
+#error "Macro << __cpp_lib_byte is not set"
+#endif
+
+#if __cpp_lib_byte < 201603
+#error "Macro __cpp_lib_byte had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_char8_t_20.cpp
+++ b/checks/std/cpp_lib_char8_t_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <atomic>
+
+#ifndef __cpp_lib_char8_t
+#error "Macro << __cpp_lib_char8_t is not set"
+#endif
+
+#if __cpp_lib_char8_t < 201811
+#error "Macro __cpp_lib_char8_t had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_chrono_17.cpp
+++ b/checks/std/cpp_lib_chrono_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <chrono>
+
+#ifndef __cpp_lib_chrono
+#error "Macro << __cpp_lib_chrono is not set"
+#endif
+
+#if __cpp_lib_chrono < 201611
+#error "Macro __cpp_lib_chrono had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_chrono_udls_14.cpp
+++ b/checks/std/cpp_lib_chrono_udls_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <chrono>
+
+#ifndef __cpp_lib_chrono_udls
+#error "Macro << __cpp_lib_chrono_udls is not set"
+#endif
+
+#if __cpp_lib_chrono_udls < 201304
+#error "Macro __cpp_lib_chrono_udls had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_clamp_17.cpp
+++ b/checks/std/cpp_lib_clamp_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <algorithm>
+
+#ifndef __cpp_lib_clamp
+#error "Macro << __cpp_lib_clamp is not set"
+#endif
+
+#if __cpp_lib_clamp < 201603
+#error "Macro __cpp_lib_clamp had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_complex_udls_14.cpp
+++ b/checks/std/cpp_lib_complex_udls_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <complex>
+
+#ifndef __cpp_lib_complex_udls
+#error "Macro << __cpp_lib_complex_udls is not set"
+#endif
+
+#if __cpp_lib_complex_udls < 201309
+#error "Macro __cpp_lib_complex_udls had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_concepts_20.cpp
+++ b/checks/std/cpp_lib_concepts_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <concepts>
+
+#ifndef __cpp_lib_concepts
+#error "Macro << __cpp_lib_concepts is not set"
+#endif
+
+#if __cpp_lib_concepts < 201806
+#error "Macro __cpp_lib_concepts had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_constexpr_misc_20.cpp
+++ b/checks/std/cpp_lib_constexpr_misc_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <array>
+
+#ifndef __cpp_lib_constexpr_misc
+#error "Macro << __cpp_lib_constexpr_misc is not set"
+#endif
+
+#if __cpp_lib_constexpr_misc < 201811
+#error "Macro __cpp_lib_constexpr_misc had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_constexpr_swap_algorithms_20.cpp
+++ b/checks/std/cpp_lib_constexpr_swap_algorithms_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <algorithm>
+
+#ifndef __cpp_lib_constexpr_swap_algorithms
+#error "Macro << __cpp_lib_constexpr_swap_algorithms is not set"
+#endif
+
+#if __cpp_lib_constexpr_swap_algorithms < 201806
+#error "Macro __cpp_lib_constexpr_swap_algorithms had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_destroying_delete_20.cpp
+++ b/checks/std/cpp_lib_destroying_delete_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <new>
+
+#ifndef __cpp_lib_destroying_delete
+#error "Macro << __cpp_lib_destroying_delete is not set"
+#endif
+
+#if __cpp_lib_destroying_delete < 201806
+#error "Macro __cpp_lib_destroying_delete had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_enable_shared_from_this_17.cpp
+++ b/checks/std/cpp_lib_enable_shared_from_this_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <memory>
+
+#ifndef __cpp_lib_enable_shared_from_this
+#error "Macro << __cpp_lib_enable_shared_from_this is not set"
+#endif
+
+#if __cpp_lib_enable_shared_from_this < 201603
+#error "Macro __cpp_lib_enable_shared_from_this had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_erase_if_20.cpp
+++ b/checks/std/cpp_lib_erase_if_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <string>
+
+#ifndef __cpp_lib_erase_if
+#error "Macro << __cpp_lib_erase_if is not set"
+#endif
+
+#if __cpp_lib_erase_if < 201811
+#error "Macro __cpp_lib_erase_if had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_exchange_function_14.cpp
+++ b/checks/std/cpp_lib_exchange_function_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <utility>
+
+#ifndef __cpp_lib_exchange_function
+#error "Macro << __cpp_lib_exchange_function is not set"
+#endif
+
+#if __cpp_lib_exchange_function < 201304
+#error "Macro __cpp_lib_exchange_function had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_execution_17.cpp
+++ b/checks/std/cpp_lib_execution_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <execution>
+
+#ifndef __cpp_lib_execution
+#error "Macro << __cpp_lib_execution is not set"
+#endif
+
+#if __cpp_lib_execution < 201603
+#error "Macro __cpp_lib_execution had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_filesystem_17.cpp
+++ b/checks/std/cpp_lib_filesystem_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <filesystem>
+
+#ifndef __cpp_lib_filesystem
+#error "Macro << __cpp_lib_filesystem is not set"
+#endif
+
+#if __cpp_lib_filesystem < 201703
+#error "Macro __cpp_lib_filesystem had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_gcd_lcm_17.cpp
+++ b/checks/std/cpp_lib_gcd_lcm_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <numeric>
+
+#ifndef __cpp_lib_gcd_lcm
+#error "Macro << __cpp_lib_gcd_lcm is not set"
+#endif
+
+#if __cpp_lib_gcd_lcm < 201606
+#error "Macro __cpp_lib_gcd_lcm had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_generic_associative_lookup_14.cpp
+++ b/checks/std/cpp_lib_generic_associative_lookup_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <map>
+
+#ifndef __cpp_lib_generic_associative_lookup
+#error "Macro << __cpp_lib_generic_associative_lookup is not set"
+#endif
+
+#if __cpp_lib_generic_associative_lookup < 201304
+#error "Macro __cpp_lib_generic_associative_lookup had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_generic_unordered_lookup_20.cpp
+++ b/checks/std/cpp_lib_generic_unordered_lookup_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <unordered_map>
+
+#ifndef __cpp_lib_generic_unordered_lookup
+#error "Macro << __cpp_lib_generic_unordered_lookup is not set"
+#endif
+
+#if __cpp_lib_generic_unordered_lookup < 201811
+#error "Macro __cpp_lib_generic_unordered_lookup had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_hardware_interference_size_17.cpp
+++ b/checks/std/cpp_lib_hardware_interference_size_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <new>
+
+#ifndef __cpp_lib_hardware_interference_size
+#error "Macro << __cpp_lib_hardware_interference_size is not set"
+#endif
+
+#if __cpp_lib_hardware_interference_size < 201703
+#error "Macro __cpp_lib_hardware_interference_size had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_has_unique_object_representations_17.cpp
+++ b/checks/std/cpp_lib_has_unique_object_representations_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_has_unique_object_representations
+#error "Macro << __cpp_lib_has_unique_object_representations is not set"
+#endif
+
+#if __cpp_lib_has_unique_object_representations < 201606
+#error "Macro __cpp_lib_has_unique_object_representations had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_hypot_17.cpp
+++ b/checks/std/cpp_lib_hypot_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <cmath>
+
+#ifndef __cpp_lib_hypot
+#error "Macro << __cpp_lib_hypot is not set"
+#endif
+
+#if __cpp_lib_hypot < 201603
+#error "Macro __cpp_lib_hypot had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_incomplete_container_elements_17.cpp
+++ b/checks/std/cpp_lib_incomplete_container_elements_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <forward_list>
+
+#ifndef __cpp_lib_incomplete_container_elements
+#error "Macro << __cpp_lib_incomplete_container_elements is not set"
+#endif
+
+#if __cpp_lib_incomplete_container_elements < 201505
+#error "Macro __cpp_lib_incomplete_container_elements had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_integer_sequence_14.cpp
+++ b/checks/std/cpp_lib_integer_sequence_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <utility>
+
+#ifndef __cpp_lib_integer_sequence
+#error "Macro << __cpp_lib_integer_sequence is not set"
+#endif
+
+#if __cpp_lib_integer_sequence < 201304
+#error "Macro __cpp_lib_integer_sequence had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_integral_constant_callable_14.cpp
+++ b/checks/std/cpp_lib_integral_constant_callable_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_integral_constant_callable
+#error "Macro << __cpp_lib_integral_constant_callable is not set"
+#endif
+
+#if __cpp_lib_integral_constant_callable < 201304
+#error "Macro __cpp_lib_integral_constant_callable had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_invoke_17.cpp
+++ b/checks/std/cpp_lib_invoke_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <functional>
+
+#ifndef __cpp_lib_invoke
+#error "Macro << __cpp_lib_invoke is not set"
+#endif
+
+#if __cpp_lib_invoke < 201411
+#error "Macro __cpp_lib_invoke had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_aggregate_17.cpp
+++ b/checks/std/cpp_lib_is_aggregate_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_aggregate
+#error "Macro << __cpp_lib_is_aggregate is not set"
+#endif
+
+#if __cpp_lib_is_aggregate < 201703
+#error "Macro __cpp_lib_is_aggregate had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_constant_evaluated_20.cpp
+++ b/checks/std/cpp_lib_is_constant_evaluated_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_constant_evaluated
+#error "Macro << __cpp_lib_is_constant_evaluated is not set"
+#endif
+
+#if __cpp_lib_is_constant_evaluated < 201811
+#error "Macro __cpp_lib_is_constant_evaluated had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_final_14.cpp
+++ b/checks/std/cpp_lib_is_final_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_final
+#error "Macro << __cpp_lib_is_final is not set"
+#endif
+
+#if __cpp_lib_is_final < 201402
+#error "Macro __cpp_lib_is_final had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_invocable_17.cpp
+++ b/checks/std/cpp_lib_is_invocable_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_invocable
+#error "Macro << __cpp_lib_is_invocable is not set"
+#endif
+
+#if __cpp_lib_is_invocable < 201703
+#error "Macro __cpp_lib_is_invocable had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_null_pointer_14.cpp
+++ b/checks/std/cpp_lib_is_null_pointer_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_null_pointer
+#error "Macro << __cpp_lib_is_null_pointer is not set"
+#endif
+
+#if __cpp_lib_is_null_pointer < 201309
+#error "Macro __cpp_lib_is_null_pointer had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_is_swappable_17.cpp
+++ b/checks/std/cpp_lib_is_swappable_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_is_swappable
+#error "Macro << __cpp_lib_is_swappable is not set"
+#endif
+
+#if __cpp_lib_is_swappable < 201603
+#error "Macro __cpp_lib_is_swappable had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_launder_17.cpp
+++ b/checks/std/cpp_lib_launder_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <new>
+
+#ifndef __cpp_lib_launder
+#error "Macro << __cpp_lib_launder is not set"
+#endif
+
+#if __cpp_lib_launder < 201606
+#error "Macro __cpp_lib_launder had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_list_remove_return_type_20.cpp
+++ b/checks/std/cpp_lib_list_remove_return_type_20.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <forward_list>
+
+#ifndef __cpp_lib_list_remove_return_type
+#error "Macro << __cpp_lib_list_remove_return_type is not set"
+#endif
+
+#if __cpp_lib_list_remove_return_type < 201806
+#error "Macro __cpp_lib_list_remove_return_type had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_logical_traits_17.cpp
+++ b/checks/std/cpp_lib_logical_traits_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <type_traits>
+
+#ifndef __cpp_lib_logical_traits
+#error "Macro << __cpp_lib_logical_traits is not set"
+#endif
+
+#if __cpp_lib_logical_traits < 201510
+#error "Macro __cpp_lib_logical_traits had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_make_from_tuple_17.cpp
+++ b/checks/std/cpp_lib_make_from_tuple_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <tuple>
+
+#ifndef __cpp_lib_make_from_tuple
+#error "Macro << __cpp_lib_make_from_tuple is not set"
+#endif
+
+#if __cpp_lib_make_from_tuple < 201606
+#error "Macro __cpp_lib_make_from_tuple had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_make_reverse_iterator_14.cpp
+++ b/checks/std/cpp_lib_make_reverse_iterator_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <iterator>
+
+#ifndef __cpp_lib_make_reverse_iterator
+#error "Macro << __cpp_lib_make_reverse_iterator is not set"
+#endif
+
+#if __cpp_lib_make_reverse_iterator < 201402
+#error "Macro __cpp_lib_make_reverse_iterator had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_make_unique_14.cpp
+++ b/checks/std/cpp_lib_make_unique_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <memory>
+
+#ifndef __cpp_lib_make_unique
+#error "Macro << __cpp_lib_make_unique is not set"
+#endif
+
+#if __cpp_lib_make_unique < 201304
+#error "Macro __cpp_lib_make_unique had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_map_try_emplace_17.cpp
+++ b/checks/std/cpp_lib_map_try_emplace_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <map>
+
+#ifndef __cpp_lib_map_try_emplace
+#error "Macro << __cpp_lib_map_try_emplace is not set"
+#endif
+
+#if __cpp_lib_map_try_emplace < 201411
+#error "Macro __cpp_lib_map_try_emplace had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_math_special_functions_17.cpp
+++ b/checks/std/cpp_lib_math_special_functions_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <cmath>
+
+#ifndef __cpp_lib_math_special_functions
+#error "Macro << __cpp_lib_math_special_functions is not set"
+#endif
+
+#if __cpp_lib_math_special_functions < 201603
+#error "Macro __cpp_lib_math_special_functions had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_memory_resource_17.cpp
+++ b/checks/std/cpp_lib_memory_resource_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <memory_resource>
+
+#ifndef __cpp_lib_memory_resource
+#error "Macro << __cpp_lib_memory_resource is not set"
+#endif
+
+#if __cpp_lib_memory_resource < 201603
+#error "Macro __cpp_lib_memory_resource had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_node_extract_17.cpp
+++ b/checks/std/cpp_lib_node_extract_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <map>
+
+#ifndef __cpp_lib_node_extract
+#error "Macro << __cpp_lib_node_extract is not set"
+#endif
+
+#if __cpp_lib_node_extract < 201606
+#error "Macro __cpp_lib_node_extract had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_nonmember_container_access_17.cpp
+++ b/checks/std/cpp_lib_nonmember_container_access_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <iterator>
+
+#ifndef __cpp_lib_nonmember_container_access
+#error "Macro << __cpp_lib_nonmember_container_access is not set"
+#endif
+
+#if __cpp_lib_nonmember_container_access < 201411
+#error "Macro __cpp_lib_nonmember_container_access had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_not_fn_17.cpp
+++ b/checks/std/cpp_lib_not_fn_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <functional>
+
+#ifndef __cpp_lib_not_fn
+#error "Macro << __cpp_lib_not_fn is not set"
+#endif
+
+#if __cpp_lib_not_fn < 201603
+#error "Macro __cpp_lib_not_fn had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_null_iterators_14.cpp
+++ b/checks/std/cpp_lib_null_iterators_14.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:38 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <iterator>
+
+#ifndef __cpp_lib_null_iterators
+#error "Macro << __cpp_lib_null_iterators is not set"
+#endif
+
+#if __cpp_lib_null_iterators < 201304
+#error "Macro __cpp_lib_null_iterators had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/checks/std/cpp_lib_optional_17.cpp
+++ b/checks/std/cpp_lib_optional_17.cpp
@@ -0,0 +1,32 @@
+//  This file was automatically generated on Mon Dec 09 09:47:37 2019
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#include <optional>
+
+#ifndef __cpp_lib_optional
+#error "Macro << __cpp_lib_optional is not set"
+#endif
+
+#if __cpp_lib_optional < 201606
+#error "Macro __cpp_lib_optional had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+
--- a/Show More
+++ b/Show More