Merge branch 'develop' into feature/result-traits

[skip ci] Add "cxxstd" json field

.github/workflows/ci.yml

@@ -0,0 +1,194 @@
+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-18.04
+            install: g++-4.8
+          - toolset: gcc-5
+            cxxstd: "03,11,14,1z"
+            os: ubuntu-18.04
+            install: g++-5
+          - toolset: gcc-6
+            cxxstd: "03,11,14,1z"
+            os: ubuntu-18.04
+            install: g++-6
+          - toolset: gcc-7
+            cxxstd: "03,11,14,17"
+            os: ubuntu-18.04
+          - toolset: gcc-8
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-18.04
+            install: g++-8
+          - toolset: gcc-9
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+          - toolset: gcc-10
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: g++-10
+          - toolset: gcc-11
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: g++-11
+          - toolset: clang
+            compiler: clang++-3.9
+            cxxstd: "03,11,14"
+            os: ubuntu-18.04
+            install: clang-3.9
+          - toolset: clang
+            compiler: clang++-4.0
+            cxxstd: "03,11,14"
+            os: ubuntu-18.04
+            install: clang-4.0
+          - toolset: clang
+            compiler: clang++-5.0
+            cxxstd: "03,11,14,1z"
+            os: ubuntu-18.04
+            install: clang-5.0
+          - toolset: clang
+            compiler: clang++-6.0
+            cxxstd: "03,11,14,17"
+            os: ubuntu-18.04
+            install: clang-6.0
+          - toolset: clang
+            compiler: clang++-7
+            cxxstd: "03,11,14,17"
+            os: ubuntu-18.04
+            install: clang-7
+          - toolset: clang
+            compiler: clang++-8
+            cxxstd: "03,11,14,17"
+            os: ubuntu-20.04
+            install: clang-8
+          - toolset: clang
+            compiler: clang++-9
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: clang-9
+          - toolset: clang
+            compiler: clang++-10
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: clang-10
+          - toolset: clang
+            compiler: clang++-11
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: clang-11
+          - toolset: clang
+            compiler: clang++-12
+            cxxstd: "03,11,14,17,2a"
+            os: ubuntu-20.04
+            install: clang-12
+          - toolset: clang
+            cxxstd: "03,11,14,17,2a"
+            os: macos-10.15
+
+    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: $GITHUB_REPOSITORY
+          LIBRARY=${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 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+          ./bootstrap.sh
+          ./b2 -d0 headers
+
+      - 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
+
+  windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: msvc-14.1
+            cxxstd: "14,17,latest"
+            addrmd: 32,64
+            os: windows-2016
+          - 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: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+          cmd /c bootstrap
+          b2 -d0 headers
+
+      - name: Run tests
+        shell: cmd
+        run: |
+          cd ../boost-root
+          b2 -j3 libs/%LIBRARY%/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} address-model=${{matrix.addrmd}} variant=debug,release

.travis.yml

@@ -311,7 +311,7 @@ matrix:
       env: CMAKE_TEST=1
       script:
         - mkdir __build__ && cd __build__
-        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=bind ..
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBUILD_TESTING=ON -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=bind ..
         - ctest --output-on-failure -R boost_bind
 
     - os: linux

appveyor.yml

@@ -16,17 +16,18 @@ environment:
   matrix:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0
+      ADDRMD: 32
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-12.0,msvc-14.0
-      ADDRESS_MODEL: 32,64
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       TOOLSET: msvc-14.1,clang-win
       CXXSTD: 14,17
-      ADDRESS_MODEL: 32,64
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       TOOLSET: msvc-14.2
       CXXSTD: 14,17,latest
-      ADDRESS_MODEL: 32,64
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       ADDPATH: C:\cygwin\bin;
       TOOLSET: gcc
@@ -61,5 +62,5 @@ build: off
 test_script:
   - PATH=%ADDPATH%%PATH%
   - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
-  - if not "%ADDRESS_MODEL%" == "" set ADDRESS_MODEL=address-model=%ADDRESS_MODEL%
+  - if not "%ADDRMD%" == "" set ADDRMD=address-model=%ADDRMD%
-  - b2 -j3 libs/bind/test toolset=%TOOLSET% %CXXSTD% %ADDRESS_MODEL% variant=debug,release
+  - b2 -j3 libs/bind/test toolset=%TOOLSET% %CXXSTD% %ADDRMD% variant=debug,release

include/boost/bind/apply.hpp

@@ -11,6 +11,8 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
+#include <boost/config.hpp>
+
 namespace boost
 {
 
@@ -18,6 +20,15 @@ template<class R> struct apply
 {
     typedef R result_type;
 
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+    template<class F, class... A> result_type operator()( F&& f, A&&... a ) const
+    {
+        return static_cast<F&&>( f )( static_cast<A&&>( a )... );
+    }
+
+#else
+
     template<class F> result_type operator()(F & f) const
     {
         return f();
@@ -67,6 +78,8 @@ template<class R> struct apply
     {
         return f(a1, a2, a3, a4, a5, a6, a7, a8, a9);
     }
+
+#endif
 };
 
 } // namespace boost

include/boost/bind/bind.hpp

@@ -28,6 +28,7 @@
 #include <boost/is_placeholder.hpp>
 #include <boost/bind/arg.hpp>
 #include <boost/bind/detail/result_traits.hpp>
+#include <boost/bind/std_placeholders.hpp>
 #include <boost/detail/workaround.hpp>
 #include <boost/visit_each.hpp>
 #include <boost/core/enable_if.hpp>

include/boost/bind/detail/result_traits.hpp

@@ -21,7 +21,9 @@
 //  See http://www.boost.org/libs/bind/bind.html for documentation.
 //
 
-#if defined(_MSVC_LANG) && _MSVC_LANG >= 17
+#include <boost/config.hpp>
+
+#if BOOST_CXX_VERSION >= 201700L
 #include <functional>
 #endif
 
@@ -48,7 +50,7 @@ template<class F> struct result_traits< unspecified, reference_wrapper<F> >
     typedef typename F::result_type type;
 };
 
-#if defined(_MSVC_LANG) && _MSVC_LANG >= 17
+#if BOOST_CXX_VERSION >= 201700L
 
 template<class T> struct result_traits< unspecified, std::plus<T> >
 {

include/boost/bind/std_placeholders.hpp

@@ -0,0 +1,39 @@
+#ifndef BOOST_BIND_STD_PLACEHOLDERS_HPP_INCLUDED
+#define BOOST_BIND_STD_PLACEHOLDERS_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/is_placeholder.hpp>
+#include <boost/config.hpp>
+
+#if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) && !defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
+
+#include <functional>
+#include <type_traits>
+
+namespace boost
+{
+
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_1)>::type > { enum _vt { value = 1 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_2)>::type > { enum _vt { value = 2 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_3)>::type > { enum _vt { value = 3 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_4)>::type > { enum _vt { value = 4 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_5)>::type > { enum _vt { value = 5 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_6)>::type > { enum _vt { value = 6 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_7)>::type > { enum _vt { value = 7 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_8)>::type > { enum _vt { value = 8 }; };
+template<> struct is_placeholder< typename std::decay<decltype(std::placeholders::_9)>::type > { enum _vt { value = 9 }; };
+
+} // namespace boost
+
+#endif
+
+#endif // #ifndef BOOST_BIND_STD_PLACEHOLDERS_HPP_INCLUDED

meta/libraries.json

@@ -13,8 +13,9 @@
             "Function-objects"
         ],
         "maintainers": [
-            "Peter Dimov <pdimov -at- pdimov.com>"
+            "Peter Dimov <pdimov -at- gmail.com>"
-        ]
+        ],
+        "cxxstd": "03"
     },
     {
         "key": "bind/mem_fn",
@@ -29,6 +30,7 @@
         ],
         "category": [
             "Function-objects"
-        ]
+        ],
+        "cxxstd": "03"
     }
 ]

test/Jamfile.v2

@@ -78,3 +78,8 @@ run bind_cpp20_test.cpp ;
 run protect_test2.cpp ;
 run protect_cpp20_test.cpp ;
 run bind_noexcept_mf2_test.cpp ;
+run std_placeholders_test.cpp ;
+run apply_test.cpp ;
+run apply_test2.cpp ;
+run apply_rv_test.cpp ;
+run apply_rv_test2.cpp ;

test/apply_rv_test.cpp

@@ -0,0 +1,77 @@
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include<boost/bind/apply.hpp>
+#include<boost/bind/bind.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+
+#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_RVALUE_REFERENCES is defined")
+int main() {}
+
+#elif defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_VARIADIC_TEMPLATES is defined")
+int main() {}
+
+#else
+
+struct F
+{
+public:
+
+    int operator()( int & x ) const
+    {
+        return x;
+    }
+
+    int operator()( int && x ) const
+    {
+        return -x;
+    }
+};
+
+int& get_lvalue_arg()
+{
+    static int a = 1;
+    return a;
+}
+
+int get_prvalue_arg()
+{
+    return 2;
+}
+
+F& get_lvalue_f()
+{
+    static F f;
+    return f;
+}
+
+F get_prvalue_f()
+{
+    return F();
+}
+
+int main()
+{
+    using namespace boost::placeholders;
+
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_lvalue_arg))(), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_prvalue_arg))(), -2 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_lvalue_arg))(), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_prvalue_arg))(), -2 );
+
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int&>(), _2))(get_lvalue_f, get_lvalue_arg), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int>(), _2))(get_lvalue_f, get_prvalue_arg), -2 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int&>(), _2))(get_prvalue_f, get_lvalue_arg), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int>(), _2))(get_prvalue_f, get_prvalue_arg), -2 );
+
+    return boost::report_errors();
+}
+
+#endif

test/apply_rv_test2.cpp

@@ -0,0 +1,92 @@
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include<boost/bind/apply.hpp>
+#include<boost/bind/bind.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+
+#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_RVALUE_REFERENCES is defined")
+int main() {}
+
+#elif defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_VARIADIC_TEMPLATES is defined")
+int main() {}
+
+#elif defined(BOOST_NO_CXX11_REF_QUALIFIERS)
+
+BOOST_PRAGMA_MESSAGE("Skipping test because BOOST_NO_CXX11_REF_QUALIFIERS is defined")
+int main() {}
+
+#else
+
+struct F
+{
+public:
+
+    int operator()( int & x ) &
+    {
+        return x;
+    }
+
+    int operator()( int && x ) &
+    {
+        return -x;
+    }
+
+    int operator()( int & x ) &&
+    {
+        return x + 10;
+    }
+
+    int operator()( int && x ) &&
+    {
+        return -x - 10;
+    }
+};
+
+int& get_lvalue_arg()
+{
+    static int a = 1;
+    return a;
+}
+
+int get_prvalue_arg()
+{
+    return 2;
+}
+
+F& get_lvalue_f()
+{
+    static F f;
+    return f;
+}
+
+F get_prvalue_f()
+{
+    return F();
+}
+
+int main()
+{
+    using namespace boost::placeholders;
+
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_lvalue_arg))(), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_lvalue_f), boost::bind(get_prvalue_arg))(), -2 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_lvalue_arg))(), 11 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(get_prvalue_f), boost::bind(get_prvalue_arg))(), -12 );
+
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int&>(), _2))(get_lvalue_f, get_lvalue_arg), 1 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F&>(), _1), boost::bind(boost::apply<int>(), _2))(get_lvalue_f, get_prvalue_arg), -2 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int&>(), _2))(get_prvalue_f, get_lvalue_arg), 11 );
+    BOOST_TEST_EQ( boost::bind(boost::apply<int>(), boost::bind(boost::apply<F>(), _1), boost::bind(boost::apply<int>(), _2))(get_prvalue_f, get_prvalue_arg), -12 );
+
+    return boost::report_errors();
+}
+
+#endif

test/apply_test.cpp

@@ -0,0 +1,29 @@
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/bind/apply.hpp>
+#include <boost/bind/protect.hpp>
+#include <boost/bind/bind.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+using namespace boost::placeholders;
+
+int f( int x )
+{
+    return x;
+}
+
+int main()
+{
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _1 ) ), 1 )(), 1 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _2 ) ), 1, 2 )(), 2 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _3 ) ), 1, 2, 3 )(), 3 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _4 ) ), 1, 2, 3, 4 )(), 4 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _5 ) ), 1, 2, 3, 4, 5 )(), 5 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _6 ) ), 1, 2, 3, 4, 5, 6 )(), 6 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _7 ) ), 1, 2, 3, 4, 5, 6, 7 )(), 7 );
+    BOOST_TEST_EQ( boost::bind( boost::apply<int>(), boost::protect( boost::bind( f, _8 ) ), 1, 2, 3, 4, 5, 6, 7, 8 )(), 8 );
+
+    return boost::report_errors();
+}

test/apply_test2.cpp

@@ -0,0 +1,15 @@
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/bind/apply.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <boost/core/is_same.hpp>
+
+int main()
+{
+    BOOST_TEST_TRAIT_TRUE((boost::core::is_same<void, boost::apply<void>::result_type>));
+    BOOST_TEST_TRAIT_TRUE((boost::core::is_same<int&, boost::apply<int&>::result_type>));
+
+    return boost::report_errors();
+}

test/std_placeholders_test.cpp

@@ -0,0 +1,50 @@
+// Copyright 2021 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/bind/bind.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <functional>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+
+#if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+BOOST_PRAGMA_MESSAGE( "Skipping test due to BOOST_NO_CXX11_HDR_FUNCTIONAL being defined" )
+int main() {}
+
+#elif defined(BOOST_NO_CXX11_DECLTYPE)
+
+BOOST_PRAGMA_MESSAGE( "Skipping test due to BOOST_NO_CXX11_DECLTYPE being defined" )
+int main() {}
+
+#elif defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
+
+BOOST_PRAGMA_MESSAGE( "Skipping test due to BOOST_NO_CXX11_HDR_TYPE_TRAITS being defined" )
+int main() {}
+
+#else
+
+int f( int x )
+{
+    return -x;
+}
+
+int main()
+{
+    using namespace std::placeholders;
+
+    BOOST_TEST_EQ( boost::bind( f, _1 )( 1 ), -1 );
+    BOOST_TEST_EQ( boost::bind( f, _2 )( 1, 2 ), -2 );
+    BOOST_TEST_EQ( boost::bind( f, _3 )( 1, 2, 3 ), -3 );
+    BOOST_TEST_EQ( boost::bind( f, _4 )( 1, 2, 3, 4 ), -4 );
+    BOOST_TEST_EQ( boost::bind( f, _5 )( 1, 2, 3, 4, 5 ), -5 );
+    BOOST_TEST_EQ( boost::bind( f, _6 )( 1, 2, 3, 4, 5, 6 ), -6 );
+    BOOST_TEST_EQ( boost::bind( f, _7 )( 1, 2, 3, 4, 5, 6, 7 ), -7 );
+    BOOST_TEST_EQ( boost::bind( f, _8 )( 1, 2, 3, 4, 5, 6, 7, 8 ), -8 );
+    BOOST_TEST_EQ( boost::bind( f, _9 )( 1, 2, 3, 4, 5, 6, 7, 8, 9 ), -9 );
+
+    return boost::report_errors();
+}
+
+#endif