disable clang-9 CI tests in c++2a mode because of the issues with comparisons in chrono

Visual Studio 2017 with C++14

.github/workflows/ci.yml

@@ -0,0 +1,193 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+
+env:
+  UBSAN_OPTIONS: print_stacktrace=1
+
+jobs:
+  posix:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: gcc-4.8
+            cxxstd: "03,11"
+            os: ubuntu-16.04
+            install: g++-4.8
+          - toolset: gcc-7
+            cxxstd: "03,11,14,17"
+            os: ubuntu-18.04
+          - toolset: gcc-9
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-18.04
+          - toolset: gcc-10
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-18.04
+            cxxflags: "cxxflags=--coverage -fsanitize=address,leak,undefined -fno-sanitize-recover=undefined"
+            linkflags: "linkflags=--coverage -lasan -lubsan"
+            gcov_tool: "gcov-10"
+          - toolset: clang
+            compiler: clang++-3.7
+            cxxstd: "03,11,14"
+            os: ubuntu-16.04
+            install: clang-3.7
+          - toolset: clang
+            compiler: clang++-9
+            cxxstd: "03,11,14,17"  # Do not run in 2a mode because of the "chrono:1345:24: error: unknown type name 'strong_ordering'"
+            os: ubuntu-20.04
+            cxxflags: "cxxflags=--coverage"
+            linkflags: "linkflags=--coverage"
+            gcov_tool: "llvm-cov-9 gcov"
+          - toolset: clang
+            compiler: clang++-10
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            cxxflags: "cxxflags=-fsanitize=address,undefined,integer -fno-sanitize-recover=undefined"
+            linkflags: "linkflags=-fsanitize=address,undefined,integer"
+          - toolset: clang
+            cxxstd: "03,11,14,17,2a"
+            os: macos-10.15
+            cxxflags: "cxxflags=-fsanitize=address,undefined -fno-sanitize-recover=undefined"
+            linkflags: "linkflags=-fsanitize=address,undefined"
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=pfr  # Note: changed from ${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 10 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          git submodule update --init --depth 10 --jobs 2 tools/boostdep tools/inspect libs/filesystem
+          python tools/boostdep/depinst/depinst.py --git_args "--depth 10 --jobs 3" filesystem
+          rm -rf libs/$LIBRARY/*
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          python tools/boostdep/depinst/depinst.py --include benchmark --include example --include examples --include tools --git_args "--depth 10 --jobs 3" $LIBRARY
+          ./bootstrap.sh
+          ./b2 -d0 headers
+          ./b2 -j4 variant=debug tools/inspect/build
+
+      - name: Create user-config.jam
+        if: matrix.compiler
+        run: |
+          echo "using ${{matrix.toolset}} : : ${{matrix.compiler}} ;" > ~/user-config.jam
+
+      - name: Run tests
+        run: |
+          cd ../boost-root
+          ./b2 -j3 libs/$LIBRARY/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} variant=debug,release "${{matrix.cxxflags}}" "${{matrix.linkflags}}" "${{matrix.launcher}}"
+          dist/bin/inspect libs/$LIBRARY
+
+      - name: Prepare coverage data
+        if: matrix.gcov_tool
+        run: |
+          mkdir -p $GITHUB_WORKSPACE/coveralls
+
+          echo -e "#!/bin/bash\nexec ${{matrix.gcov_tool}} \"\$@\"" > $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh
+          chmod +x $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh
+          wget https://github.com/linux-test-project/lcov/archive/v1.15.zip
+          unzip v1.15.zip
+          LCOV="`pwd`/lcov-1.15/bin/lcov --gcov-tool $GITHUB_WORKSPACE/coveralls/gcov_wrapper.sh"
+
+          echo "$LCOV --directory ../boost-root/bin.v2/libs/$LIBRARY/ --base-directory `pwd`/libs/$LIBRARY/test --capture --output-file $GITHUB_WORKSPACE/coveralls/coverage.info"
+          $LCOV --directory ../boost-root/bin.v2/libs/$LIBRARY/ --base-directory ../boost-root/ --capture --output-file $GITHUB_WORKSPACE/coveralls/coverage.info
+          $LCOV --remove $GITHUB_WORKSPACE/coveralls/coverage.info "/usr*" "*/$LIBRARY/test/*" ${{matrix.ignore_coverage}} "*/$LIBRARY/tests/*" "*/$LIBRARY/examples/*" "*/$LIBRARY/example/*" -o $GITHUB_WORKSPACE/coveralls/coverage.info
+
+          cd ../boost-root
+          OTHER_LIBS=`grep "submodule .*" .gitmodules | sed 's/\[submodule\ "\(.*\)"\]/"\*\/boost\/\1\.hpp" "\*\/boost\/\1\/\*"/g'| sed "/\"\*\/boost\/$LIBRARY\/\*\"/d" | sed ':a;N;$!ba;s/\n/ /g'`
+          echo $OTHER_LIBS
+          eval "$LCOV --remove $GITHUB_WORKSPACE/coveralls/coverage.info $OTHER_LIBS -o $GITHUB_WORKSPACE/coveralls/coverage.info"
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        if: matrix.gcov_tool
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ./coveralls/coverage.info
+          parallel: true
+
+  windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: msvc-14.1
+            cxxstd: "14,17,latest"
+            addrmd: 32,64
+            os: windows-2016
+          # TODO: fails the loophole tests
+          #- toolset: msvc-14.2
+          #  cxxstd: "14,17,latest"
+          #  addrmd: 32,64
+          #  os: windows-2019
+          - toolset: gcc
+            cxxstd: "03,11,14,17,2a"
+            addrmd: 64
+            os: windows-2019
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          set LIBRARY=pfr
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --include benchmark --include example --include examples --include tools --git_args "--jobs 3" %LIBRARY%
+          cmd /c bootstrap
+          b2 -d0 headers
+
+      - name: Run tests
+        shell: cmd
+        run: |
+          cd ../boost-root
+          b2 -j3 libs/%LIBRARY%/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} address-model=${{matrix.addrmd}} variant=debug,release
+
+  finish:
+    needs: posix
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.github_token }}
+        parallel-finished: true

.travis.yml

@@ -119,7 +119,8 @@ before_install:
   - echo "Testing $BOOST_LIBS_FOLDER, to remove $BOOST/libs/$BOOST_LIBS_FOLDER, testing branch $BOOST_BRANCH"
   - git clone -b $BOOST_BRANCH --depth 10 https://github.com/boostorg/boost.git $BOOST
   - cd $BOOST
-  - git submodule update --init --depth 10 tools/build tools/boostdep
+  - git submodule update --init --depth 10 tools/build tools/boostdep tools/inspect libs/filesystem
+  - python tools/boostdep/depinst/depinst.py --git_args "--depth 10 --jobs 2" $BOOST/libs/filesystem
 
   # Replacing Boost module with this project and installing Boost dependencies
   - rm -rf $BOOST/libs/$BOOST_LIBS_FOLDER
@@ -131,6 +132,7 @@ before_install:
   # Adding missing toolsets and preparing Boost headers
   - ./bootstrap.sh
   - ./b2 headers
+  - ./b2 -j4 variant=debug tools/inspect/build
   - |-
     echo "using gcc ;" >> ~/user-config.jam
     echo "using clang ;" >> ~/user-config.jam
@@ -146,21 +148,20 @@ before_install:
 
 script:
   - sh -c "../../../b2 -j2 $B2_ARGS"
+  - ../../../dist/bin/inspect ..
 
 after_success:
+  - exit 0  # we run coverage reports from GithubActions
+
   # Copying Coveralls data to a separate folder
   - mkdir -p $TRAVIS_BUILD_DIR/coverals
-  - find ../../../bin.v2/ -name "*.gcda" -exec cp "{}" $TRAVIS_BUILD_DIR/coverals/ \;
-  - find ../../../bin.v2/ -name "*.gcno" -exec cp "{}" $TRAVIS_BUILD_DIR/coverals/ \;
-  - find ../../../bin.v2/ -name "*.da" -exec cp "{}" $TRAVIS_BUILD_DIR/coverals/ \;
-  - find ../../../bin.v2/ -name "*.no" -exec cp "{}" $TRAVIS_BUILD_DIR/coverals/ \;
-  - wget https://github.com/linux-test-project/lcov/archive/v1.12.zip
-  - unzip v1.12.zip
-  - LCOV="`pwd`/lcov-1.12/bin/lcov"
+  - wget https://github.com/linux-test-project/lcov/archive/v1.15.zip
+  - unzip v1.15.zip
+  - LCOV="`pwd`/lcov-1.15/bin/lcov"
 
   # Preparing Coveralls data by changind data format to a readable one
-  - echo "$LCOV --directory $TRAVIS_BUILD_DIR/coverals --base-directory `pwd` --capture --output-file $TRAVIS_BUILD_DIR/coverals/coverage.info"
-  - $LCOV --directory $TRAVIS_BUILD_DIR/coverals --base-directory `pwd` --capture --output-file $TRAVIS_BUILD_DIR/coverals/coverage.info
+  - echo "$LCOV --directory $BOOST/bin.v2/libs/$BOOST_LIBS_FOLDER --base-directory `pwd` --capture --output-file $TRAVIS_BUILD_DIR/coverals/coverage.info"
+  - $LCOV --directory $BOOST/bin.v2/libs/$BOOST_LIBS_FOLDER --base-directory `pwd` --capture --output-file $TRAVIS_BUILD_DIR/coverals/coverage.info
 
   # ... erasing /test/ /example/ folder data
   - cd $BOOST

README.md

@@ -1,16 +1,17 @@
-# Boost.PFR
+# [Boost.PFR](https://boost.org/libs/pfr)
 
 This is a C++14 library for very basic reflection that gives you access to structure elements by index and provides other `std::tuple` like methods for user defined types without any macro or boilerplate code.
 
-
-[Latest documentation](http://apolukhin.github.com/magic_get/index.html)
+Boost.PFR is a part of the [Boost C++ Libraries](https://github.com/boostorg). However, Boost.PFR is a header only library that does not depend on Boost. You can just copy the content of the "include" folder from the github into your project, and the library will work fine.
 
 ### Test results
 
 Branches        | Build         | Tests coverage | More info
 ----------------|-------------- | -------------- |-----------
-Develop:        | [![Build Status](https://travis-ci.org/apolukhin/magic_get.svg?branch=develop)](https://travis-ci.org/apolukhin/magic_get) [![Build status](https://ci.appveyor.com/api/projects/status/3tled9gd24k9paia/branch/develop?svg=true)](https://ci.appveyor.com/project/apolukhin/magic-get/branch/develop) | [![Coverage Status](https://coveralls.io/repos/github/apolukhin/magic_get/badge.png?branch=develop)](https://coveralls.io/github/apolukhin/magic_get?branch=develop) | [details...](http://www.boost.org/development/tests/develop/developer/pfr.html)
-Master:         | [![Build Status](https://travis-ci.org/apolukhin/magic_get.svg?branch=master)](https://travis-ci.org/apolukhin/magic_get) [![Build status](https://ci.appveyor.com/api/projects/status/3tled9gd24k9paia/branch/master?svg=true)](https://ci.appveyor.com/project/apolukhin/magic-get/branch/master) | [![Coverage Status](https://coveralls.io/repos/github/apolukhin/magic_get/badge.png?branch=master)](https://coveralls.io/github/apolukhin/magic_get?branch=master) | [details...](http://www.boost.org/development/tests/master/developer/pfr.html)
+Develop:        | [![CI](https://github.com/boostorg/pfr/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/pfr/actions/workflows/ci.yml) [![Build Status](https://travis-ci.org/apolukhin/magic_get.svg?branch=develop)](https://travis-ci.org/apolukhin/magic_get) [![Build status](https://ci.appveyor.com/api/projects/status/3tled9gd24k9paia/branch/develop?svg=true)](https://ci.appveyor.com/project/apolukhin/magic-get/branch/develop) | [![Coverage Status](https://coveralls.io/repos/github/apolukhin/magic_get/badge.png?branch=develop)](https://coveralls.io/github/apolukhin/magic_get?branch=develop) | [details...](https://www.boost.org/development/tests/develop/developer/pfr.html)
+Master:         | [![CI](https://github.com/boostorg/pfr/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/pfr/actions/workflows/ci.yml) [![Build Status](https://travis-ci.org/apolukhin/magic_get.svg?branch=master)](https://travis-ci.org/apolukhin/magic_get) [![Build status](https://ci.appveyor.com/api/projects/status/3tled9gd24k9paia/branch/master?svg=true)](https://ci.appveyor.com/project/apolukhin/magic-get/branch/master) | [![Coverage Status](https://coveralls.io/repos/github/apolukhin/magic_get/badge.png?branch=master)](https://coveralls.io/github/apolukhin/magic_get?branch=master) | [details...](https://www.boost.org/development/tests/master/developer/pfr.html)
+
+[Latest developer documentation](https://www.boost.org/doc/libs/develop/doc/html/boost_pfr.html)
 
 ### Motivating Example #0
 ```c++
@@ -94,8 +95,8 @@ my_struct has 2 fields: {"Das ist fantastisch!", 100}
 
 ### Requirements and Limitations
 
-[See docs](http://apolukhin.github.com/magic_get/index.html).
+[See docs](https://www.boost.org/doc/libs/develop/doc/html/boost_pfr.html).
 
 ### License
 
-Distributed under the [Boost Software License, Version 1.0](http://boost.org/LICENSE_1_0.txt).
+Distributed under the [Boost Software License, Version 1.0](https://boost.org/LICENSE_1_0.txt).

doc/pfr.qbk

@@ -1,7 +1,7 @@
 [library Boost.PFR
     [quickbook 1.6]
     [version 2.0]
-    [copyright 2016-2020 Antony Polukhin]
+    [copyright 2016-2021 Antony Polukhin]
     [category Language Features Emulation]
     [license
         Distributed under the Boost Software License, Version 1.0.
@@ -466,6 +466,7 @@ By default Boost.PFR [*auto-detects your compiler abilities] and automatically d
     [[*BOOST_PFR_USE_CPP17*] [Define to `1` if you wish to override Boost.PFR choice and use C++17 structured bindings for reflection. Define to `0` to override Boost.PFR choice and disable C++17 structured bindings usage.]]
     [[*BOOST_PFR_USE_LOOPHOLE*] [Define to `1` if you wish to override Boost.PFR choice and exploit [@http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#2118 CWG 2118] for reflection. Define to `0` to override Boost.PFR choice and disable CWG 2118 usage.]]
     [[*BOOST_PFR_USE_STD_MAKE_INTEGRAL_SEQUENCE*] [Define to `0` if you are hit by the template instantiation depth issues with `std::make_integer_sequence` and wish to use Boost.PFR version of that metafunction. Define to `1` to override Boost.PFR detection logic. ]]
+    [[*BOOST_PFR_HAS_GUARANTEED_COPY_ELISION*] [Define to `0` if your compiler does not implement C++17 guaranteed copy elision properly and fails to reflect aggregates with non-movable fields. Define to `1` to override Boost.PFR detection logic. ]]
 ]
 
 

example/get.cpp

@@ -1,4 +1,4 @@
-// Copyright 2016-2020 Antony Polukhin
+// Copyright 2016-2021 Antony Polukhin
 
 // Distributed under the Boost Software License, Version 1.0.
 // (See the accompanying file LICENSE_1_0.txt

example/motivating_example0.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

example/quick_examples.cpp

@@ -1,4 +1,4 @@
-// Copyright 2016-2020 Antony Polukhin
+// Copyright 2016-2021 Antony Polukhin
 
 // Distributed under the Boost Software License, Version 1.0.
 // (See the accompanying file LICENSE_1_0.txt
@@ -12,6 +12,7 @@
 #include <boost/pfr.hpp>
 #include <boost/type_index.hpp>
 
+// boost-no-inspect
 void test_examples() {
 
 #if BOOST_PFR_USE_CPP17
@@ -55,7 +56,7 @@ void test_examples() {
 
   {
 //[pfr_quick_examples_for_each_idx
-    // Iterate over fields of a varible and output index and
+    // Iterate over fields of a variable and output index and
     // type of a variable.
 
     struct tag0{};

example/sample_printing.cpp

@@ -1,4 +1,4 @@
-// Copyright 2016-2020 Antony Polukhin
+// Copyright 2016-2021 Antony Polukhin
 
 // Distributed under the Boost Software License, Version 1.0.
 // (See the accompanying file LICENSE_1_0.txt

include/boost/pfr.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/core.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/cast_to_layout_compatible.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/config.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -45,15 +45,18 @@
 #           define BOOST_PFR_USE_CPP17 1
 #       else
 #           define BOOST_PFR_USE_CPP17 0
-#           if !BOOST_PFR_USE_LOOPHOLE
-#               error Boost.PFR requires /std:c++latest or /std:c++17 flags on your compiler.
-#           endif
 #       endif
 #   else
 #       define BOOST_PFR_USE_CPP17 0
 #   endif
 #endif
 
+#if (!BOOST_PFR_USE_CPP17 && !BOOST_PFR_USE_LOOPHOLE)
+#   if (defined(_MSC_VER) && _MSC_VER < 1916) ///< in Visual Studio 2017 v15.9 PFR library with classic engine normally works
+#      error Boost.PFR requires /std:c++latest or /std:c++17 flags on your compiler.
+#   endif
+#endif
+
 #ifndef BOOST_PFR_USE_STD_MAKE_INTEGRAL_SEQUENCE
 // Assume that libstdc++ since GCC-7.3 does not have linear instantiation depth in std::make_integral_sequence
 #   if defined( __GLIBCXX__) && __GLIBCXX__ >= 20180101
@@ -66,6 +69,14 @@
 #   endif
 #endif
 
+#ifndef BOOST_PFR_HAS_GUARANTEED_COPY_ELISION
+#   if  defined(__cpp_guaranteed_copy_elision) && (!defined(_MSC_VER) || _MSC_VER > 1928)
+#       define BOOST_PFR_HAS_GUARANTEED_COPY_ELISION 1
+#   else
+#       define BOOST_PFR_HAS_GUARANTEED_COPY_ELISION 0
+#   endif
+#endif
+
 #if defined(__has_cpp_attribute)
 #   if __has_cpp_attribute(maybe_unused)
 #       define BOOST_PFR_MAYBE_UNUSED [[maybe_unused]]

include/boost/pfr/detail/core.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/core14_classic.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -549,6 +549,11 @@ constexpr bool is_flat_refelectable(std::index_sequence<I...>) noexcept {
     return true;
 }
 
+template<class T>
+constexpr bool is_flat_refelectable(std::index_sequence<>) noexcept {
+    return true; ///< all empty structs always flat refelectable
+}
+
 template <class T>
 auto tie_as_flat_tuple(T& lvalue) noexcept {
     static_assert(

include/boost/pfr/detail/core14_loophole.hpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2017-2018 Alexandr Poltavsky, Antony Polukhin.
-// Copyright (c) 2019-2020 Antony Polukhin.
+// Copyright (c) 2019-2021 Antony Polukhin.
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/core17.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/core17_generated.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/detectors.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/fields_count.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -31,19 +31,19 @@ struct ubiq_lref_constructor {
     std::size_t ignore;
     template <class Type> constexpr operator Type&() const && noexcept {  // tweak for template_unconstrained.cpp like cases
         return detail::unsafe_declval<Type&>();
-    };
+    }
 
     template <class Type> constexpr operator Type&() const & noexcept {  // tweak for optional_chrono.cpp like cases
         return detail::unsafe_declval<Type&>();
-    };
+    }
 };
 
 ///////////////////// Structure that can be converted to rvalue reference to anything
 struct ubiq_rref_constructor {
     std::size_t ignore;
-    template <class Type> /*constexpr*/ operator Type&&() const && noexcept {  // Allows initialization of rvalue reference fields and move-only types
-        return detail::unsafe_declval<Type&&>();
-    };
+    template <class Type> /*constexpr*/ operator Type() const && noexcept {  // Allows initialization of rvalue reference fields and move-only types
+        return detail::unsafe_declval<Type>();
+    }
 };
 
 
@@ -93,6 +93,60 @@ struct is_aggregate_initializable_n {
 
 #endif // #ifndef __cpp_lib_is_aggregate
 
+///////////////////// Detect aggregates with inheritance
+template <class Derived, class U>
+constexpr bool static_assert_non_inherited() noexcept {
+    static_assert(
+            !std::is_base_of<U, Derived>::value,
+            "====================> Boost.PFR: Boost.PFR: Inherited types are not supported."
+    );
+    return true;
+}
+
+template <class Derived>
+struct ubiq_lref_base_asserting {
+    template <class Type> constexpr operator Type&() const &&  // tweak for template_unconstrained.cpp like cases
+        noexcept(detail::static_assert_non_inherited<Derived, Type>())  // force the computation of assert function
+    {
+        return detail::unsafe_declval<Type&>();
+    }
+
+    template <class Type> constexpr operator Type&() const &  // tweak for optional_chrono.cpp like cases
+        noexcept(detail::static_assert_non_inherited<Derived, Type>())  // force the computation of assert function
+    {
+        return detail::unsafe_declval<Type&>();
+    }
+};
+
+template <class Derived>
+struct ubiq_rref_base_asserting {
+    template <class Type> /*constexpr*/ operator Type() const &&  // Allows initialization of rvalue reference fields and move-only types
+        noexcept(detail::static_assert_non_inherited<Derived, Type>())  // force the computation of assert function
+    {
+        return detail::unsafe_declval<Type>();
+    }
+};
+
+template <class T, std::size_t I0, std::size_t... I, class /*Enable*/ = typename std::enable_if<std::is_copy_constructible<T>::value>::type>
+constexpr auto assert_first_not_base(std::index_sequence<I0, I...>) noexcept
+    -> typename std::add_pointer<decltype(T{ ubiq_lref_base_asserting<T>{}, ubiq_lref_constructor{I}... })>::type
+{
+    return nullptr;
+}
+
+template <class T, std::size_t I0, std::size_t... I, class /*Enable*/ = typename std::enable_if<!std::is_copy_constructible<T>::value>::type>
+constexpr auto assert_first_not_base(std::index_sequence<I0, I...>) noexcept
+    -> typename std::add_pointer<decltype(T{ ubiq_rref_base_asserting<T>{}, ubiq_rref_constructor{I}... })>::type
+{
+    return nullptr;
+}
+
+template <class T>
+constexpr void* assert_first_not_base(std::index_sequence<>) noexcept
+{
+    return nullptr;
+}
+
 ///////////////////// Helper for SFINAE on fields count
 template <class T, std::size_t... I, class /*Enable*/ = typename std::enable_if<std::is_copy_constructible<T>::value>::type>
 constexpr auto enable_if_constructible_helper(std::index_sequence<I...>) noexcept
@@ -210,6 +264,7 @@ constexpr std::size_t fields_count() noexcept {
         "====================> Boost.PFR: Attempt to get fields count on a reference. This is not allowed because that could hide an issue and different library users expect different behavior in that case."
     );
 
+#if !BOOST_PFR_HAS_GUARANTEED_COPY_ELISION
     static_assert(
         std::is_copy_constructible<std::remove_all_extents_t<type>>::value || (
             std::is_move_constructible<std::remove_all_extents_t<type>>::value
@@ -217,6 +272,7 @@ constexpr std::size_t fields_count() noexcept {
         ),
         "====================> Boost.PFR: Type and each field in the type must be copy constructible (or move constructible and move assignable)."
     );
+#endif  // #if !BOOST_PFR_HAS_GUARANTEED_COPY_ELISION
 
     static_assert(
         !std::is_polymorphic<type>::value,
@@ -242,6 +298,8 @@ constexpr std::size_t fields_count() noexcept {
     constexpr std::size_t max_fields_count = (sizeof(type) * CHAR_BIT); // We multiply by CHAR_BIT because the type may have bitfields in T
     constexpr std::size_t result = detail::detect_fields_count_dispatch<type>(size_t_<max_fields_count>{}, 1L, 1L);
 
+    detail::assert_first_not_base<type>(detail::make_index_sequence<result>{});
+
 #ifndef __cpp_lib_is_aggregate
     static_assert(
         is_aggregate_initializable_n<type, result>::value,

include/boost/pfr/detail/for_each_field_impl.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/functional.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -10,6 +10,7 @@
 #include <boost/pfr/detail/config.hpp>
 
 #include <functional>
+#include <cstdint>
 
 #include <boost/pfr/detail/sequence_tuple.hpp>
 
@@ -116,11 +117,57 @@ namespace boost { namespace pfr { namespace detail {
         }
     };
 
+    // Hash combine functions copied from Boost.ContainerHash
+    // https://github.com/boostorg/container_hash/blob/171c012d4723c5e93cc7cffe42919afdf8b27dfa/include/boost/container_hash/hash.hpp#L311
+    // that is based on Peter Dimov's proposal
+    // http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
+    // issue 6.18.
+    //
+    // This also contains public domain code from MurmurHash. From the
+    // MurmurHash header:
+    //
+    // MurmurHash3 was written by Austin Appleby, and is placed in the public
+    // domain. The author hereby disclaims copyright to this source code.
     template <typename SizeT>
     constexpr void hash_combine(SizeT& seed, SizeT value) noexcept {
         seed ^= value + 0x9e3779b9 + (seed<<6) + (seed>>2);
     }
 
+    constexpr auto rotl(std::uint32_t x, std::uint32_t r) noexcept {
+        return (x << r) | (x >> (32 - r));
+    }
+
+    constexpr void hash_combine(std::uint32_t& h1, std::uint32_t k1) noexcept {
+          const std::uint32_t c1 = 0xcc9e2d51;
+          const std::uint32_t c2 = 0x1b873593;
+
+          k1 *= c1;
+          k1 = detail::rotl(k1,15);
+          k1 *= c2;
+
+          h1 ^= k1;
+          h1 = detail::rotl(h1,13);
+          h1 = h1*5+0xe6546b64;
+    }
+
+#if defined(INT64_MIN) && defined(UINT64_MAX)
+    constexpr void hash_combine(std::uint64_t& h, std::uint64_t k) noexcept {
+        const std::uint64_t m = 0xc6a4a7935bd1e995ULL;
+        const int r = 47;
+
+        k *= m;
+        k ^= k >> r;
+        k *= m;
+
+        h ^= k;
+        h *= m;
+
+        // Completely arbitrary number, to prevent 0's
+        // from hashing to 0.
+        h += 0xe6546b64;
+    }
+#endif
+
     template <typename T>
     auto compute_hash(const T& value, long /*priority*/)
         -> decltype(std::hash<T>()(value))
@@ -171,12 +218,13 @@ namespace boost { namespace pfr { namespace detail {
         ::boost::pfr::detail::for_each_field_dispatcher(
             x,
             [&result, &y](const auto& lhs) {
+                constexpr std::size_t fields_count_rhs_ = detail::fields_count<std::remove_reference_t<U>>();
                 ::boost::pfr::detail::for_each_field_dispatcher(
                     y,
                     [&result, &lhs](const auto& rhs) {
                         result = visitor_t::cmp(lhs, rhs);
                     },
-                    detail::make_index_sequence<fields_count_rhs>{}
+                    detail::make_index_sequence<fields_count_rhs_>{}
                 );
             },
             detail::make_index_sequence<fields_count_lhs>{}

include/boost/pfr/detail/io.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/make_flat_tuple_of_references.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/make_integer_sequence.hpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2018 Sergei Fedorov
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/offset_based_getter.hpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2017-2018 Chris Beck
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/rvalue_t.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/sequence_tuple.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/size_array.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/size_t_.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/stdtuple.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/tie_from_structure_tuple.hpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2018 Adam Butcher, Antony Polukhin
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/detail/unsafe_declval.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2019-2020 Antony Polukhin.
+// Copyright (c) 2019-2021 Antony Polukhin.
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/functions_for.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/functors.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/io.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/io_fields.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -120,13 +120,13 @@ std::basic_istream<Char, Traits>& operator>>(std::basic_istream<Char, Traits>& i
 
 template <class Char, class Traits, class T>
 std::basic_istream<Char, Traits>& operator>>(std::basic_istream<Char, Traits>& in, io_fields_impl<const T&>&& ) {
-    static_assert(sizeof(T) && false, "====================> Boost.PFR: Atetmpt to use istream operator on a boost::pfr::io_fields wrapped type T with const qualifier.");
+    static_assert(sizeof(T) && false, "====================> Boost.PFR: Attempt to use istream operator on a boost::pfr::io_fields wrapped type T with const qualifier.");
     return in;
 }
 
 template <class Char, class Traits, class T>
 std::basic_istream<Char, Traits>& operator>>(std::basic_istream<Char, Traits>& in, io_fields_impl<T>&& ) {
-    static_assert(sizeof(T) && false, "====================> Boost.PFR: Atetmpt to use istream operator on a boost::pfr::io_fields wrapped temporary of type T.");
+    static_assert(sizeof(T) && false, "====================> Boost.PFR: Attempt to use istream operator on a boost::pfr::io_fields wrapped temporary of type T.");
     return in;
 }
 

include/boost/pfr/ops.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/ops_fields.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

include/boost/pfr/tuple_size.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

index.html

@@ -1,13 +1,35 @@
 <!DOCTYPE html>
+<!--
+ Copyright (c) 2014-2021 Antony Polukhin
+ antoshkka at gmail dot com
+
+ Distributed under the Boost Software License,
+ Version 1.0. (See accompanying file LICENSE_1_0.txt
+ or copy at http://boost.org/LICENSE_1_0.txt)
+-->
 <html>
 <head>
 <meta charset="utf-8">
-<meta http-equiv="refresh" content="0; url=../../doc/html/boost_pfr.html">
-<title>Boost.PFR</title>
+<meta http-equiv="refresh" content="0; url=https://www.boost.org/doc/libs/master/doc/html/boost_pfr.html">
+<title>Boost.Stacktrace</title>
+<style>
+  body {
+    background: #fff;
+    color: #000;
+  }
+  a {
+    color: #00f;
+    text-decoration: none;
+  }
+</style>
 </head>
 <body>
-<p>
-Redirecting you to <a href="../../doc/html/boost_pfr.html">Boost.PFR</a>
-</p>
+  <p>
+    Automatic redirection failed, please go to
+    <a href="https://www.boost.org/doc/libs/master/doc/html/boost_pfr.html">https://www.boost.org/doc/libs/master/doc/html/boost_pfr.html</a>
+  </p>
+  <p>
+    &copy; 2014-2021 Antony Polukhin
+  </p>
 </body>
 </html>

meta/libraries.json

@@ -12,5 +12,6 @@
         "Data",
         "Metaprogramming"
     ],
+    "std": [ "proposal" ],
     "cxxstd": "14"
 }

test/Jamfile.v2

@@ -1,4 +1,4 @@
-#  Copyright (C) 2016-2020, Antony Polukhin.
+#  Copyright (C) 2016-2021 Antony Polukhin.
 #
 # Use, modification and distribution is subject to the Boost Software License,
 # Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@@ -12,7 +12,6 @@ import ../../config/checks/config : requires ;
 project
     : source-location .
     : requirements
-        <toolset>msvc:<cxxflags>"/std:c++latest"
         <define>BOOST_PFR_DETAIL_STRICT_RVALUE_TESTING=1
         [ requires cxx14_constexpr ]
     ;
@@ -39,7 +38,7 @@ explicit compiler_supports_loophole ;
 ########## END of helpers to detect Loophole trick support
 
 
-local DISABLE_ON_MSVC = <toolset>msvc:<build>no ;
+local DISABLE_ON_MSVC = ; #<toolset>msvc:<build>no ;
 local REQUIRE_LOOPHOLE =
     [ check-target-builds ../test//compiler_supports_loophole : : <build>no ]
   ;

test/appveyor.yml

@@ -2,7 +2,7 @@
 # subject to the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 #
-# Copyright Antony Polukhin 2016-2019.
+# Copyright Antony Polukhin 2016-2021.
 
 #
 # See https://svn.boost.org/trac/boost/wiki/TravisCoverals for description of this file

test/compile-fail/fields_count_on_reference.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/inherited.cpp

@@ -0,0 +1,21 @@
+// Copyright (c) 2021 Denis Mikhailov
+// Copyright (c) 2021 Antony Polukhin
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/pfr/core.hpp>
+
+struct A
+{};
+
+struct B : A
+{
+    int one;
+    int two;
+};
+
+int main() {
+    (void)boost::pfr::tuple_size<B>::value; // Must be a compile time error
+}
+

test/compile-fail/inherited_nonempty.cpp

@@ -0,0 +1,20 @@
+// Copyright (c) 2021 Antony Polukhin
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/pfr/core.hpp>
+
+struct A {
+    int zero;
+};
+
+struct B : public A {
+    int one;
+    int two;
+};
+
+int main() {
+    (void)boost::pfr::tuple_size<B>::value; // Must be a compile time error
+}
+

test/compile-fail/movable_and_lvalue_references.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/non_aggregate.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/ops_on_union.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/ops_unions.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/ops_unrestricted_unions.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/pfr_review_test2.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 // Copyright (c) 2020 Richard Hodges
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying

test/compile-fail/private_fields.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/protected_fields.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/rvalue_tie.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/compile-fail/virtual_functions.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/loophole_detection.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/offset_based_getter.cpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2019 Ilya Kiselev
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/print_config.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -12,6 +12,7 @@ int main() {
         << "BOOST_PFR_USE_CPP17 == " << BOOST_PFR_USE_CPP17 << '\n'
         << "BOOST_PFR_USE_LOOPHOLE == " << BOOST_PFR_USE_LOOPHOLE << '\n'
         << "BOOST_PFR_USE_STD_MAKE_INTEGRAL_SEQUENCE == " << BOOST_PFR_USE_STD_MAKE_INTEGRAL_SEQUENCE << '\n'
+        << "BOOST_PFR_HAS_GUARANTEED_COPY_ELISION == " << BOOST_PFR_HAS_GUARANTEED_COPY_ELISION << '\n'
         << "__cplusplus == " << __cplusplus << '\n'
 #ifdef __cpp_structured_bindings
         << "__cpp_structured_bindings == " << __cpp_structured_bindings << '\n'

test/run/bitfields_count.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/constexpr_ops.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/destructuring_tie.cpp

@@ -1,5 +1,5 @@
 // Copyright (c) 2018 Adam Butcher, Antony Polukhin
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/error_pfr_c1202.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/fields_count_on_const.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/for_each_field.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/functions_for.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -73,7 +73,7 @@ void test_empty_struct() {
 
 namespace foo {
     struct testing { bool b1, b2; int i; };
-    BOOST_PFR_FUNCTIONS_FOR(testing);
+    BOOST_PFR_FUNCTIONS_FOR(testing)
 }
 
 template <class Comparator>

test/run/get_const_field.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/get_rvalue.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/issue30.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -18,6 +18,12 @@ struct Message2 {
   std::unique_ptr<int> data42 = std::make_unique<int>(42);
 };
 
+// Example from duplicate issue #45
+struct UniquePtr {
+    std::unique_ptr<int> a;
+};
+static_assert (boost::pfr::tuple_size_v<UniquePtr> == 1, "");
+
 int main() {
   Message message;
   auto& ptr = boost::pfr::get<0>(message);

test/run/issue33.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/motivating_example.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/motivating_example2.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/non_copyable_but_movable.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/non_dc_non_cop_but_mov.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/non_default_constructible.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/non_movable.cpp

@@ -0,0 +1,45 @@
+// Copyright (c) 2018-2021 Antony Polukhin
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/pfr/tuple_size.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+
+struct X {
+    X() = default;
+    X(X&&) = delete;
+    X(const X&) = delete;
+
+    X& operator=(X&&) = delete;
+    X& operator=(const X&) = delete;
+};
+struct S { X x0; X x1; int x2; X x3; };
+
+int main() {
+#if BOOST_PFR_HAS_GUARANTEED_COPY_ELISION
+    static_assert(boost::pfr::tuple_size_v<S> == 4, "");
+
+    struct S5_0 { int x0; int x1; int x2; int x3; X x4; };
+    static_assert(boost::pfr::tuple_size_v<S5_0> == 5, "");
+
+    struct S5_1 { X x0; int x1; int x2; int x3; int x4; };
+    static_assert(boost::pfr::tuple_size_v<S5_1> == 5, "");
+
+    struct S5_2 { int x0; int x1; X x2; int x3; int x4; };
+    static_assert(boost::pfr::tuple_size_v<S5_2> == 5, "");
+
+    struct S5_3 { int x0; int x1; X x2; int x3; X x4; };
+    static_assert(boost::pfr::tuple_size_v<S5_3> == 5, "");
+
+    struct S5_4 { X x0; X x1; X x2; X x3; X x4; };
+    static_assert(boost::pfr::tuple_size_v<S5_4> == 5, "");
+
+    struct S6 { X x0; X x1; X x2; X x3; X x4;  X x5;};
+    static_assert(boost::pfr::tuple_size_v<S6> == 6, "");
+#endif  // #if BOOST_PFR_HAS_GUARANTEED_COPY_ELISION
+
+    return boost::report_errors();
+}
+

test/run/non_std_layout.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2018-2020 Antony Polukhin
+// Copyright (c) 2018-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/ops.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/optional_chrono.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/read_write.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/read_write_non_literal.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -38,7 +38,6 @@ void test_type(const T& value, const char* ethalon) {
 
 
 int main() {
-#if !defined(_MSC_VER) /* TODO: remove after fixing strange errors https://ci.appveyor.com/project/apolukhin/magic-get/build/1.65.108-develop */
     struct test4 {
         int f0;
         std::string f1;
@@ -67,7 +66,6 @@ int main() {
         "{1, \"my o my\", 3, 4, \"hello there!\"}"
     );
     #endif
-#endif
 
     return boost::report_errors();
 }

test/run/std_interactions.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/template_constructor.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2019-2020 Antony Polukhin.
+// Copyright (c) 2019-2021 Antony Polukhin.
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/template_forwarding_ref.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/template_unconstrained.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2019-2020 Antony Polukhin
+// Copyright (c) 2019-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/tie_anonymous.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/tie_anonymous_const_field.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Antony Polukhin
+// Copyright (c) 2020-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/run/tuple_size.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

test/test_tuple_sizes_on.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2016-2020 Antony Polukhin
+// Copyright (c) 2016-2021 Antony Polukhin
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)