forked from boostorg/bind
233 lines
4.6 KiB
C++
233 lines
4.6 KiB
C++
#ifndef BOOST_BIND_MEM_FN_HPP_INCLUDED
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#define BOOST_BIND_MEM_FN_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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// mem_fn.hpp - a generalization of std::mem_fun[_ref]
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//
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// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
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// Copyright (c) 2001 David Abrahams
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// Copyright (c) 2003-2005 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/bind/mem_fn.html for documentation.
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//
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#include <boost/get_pointer.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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#include <type_traits>
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namespace boost
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{
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namespace _mfi
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{
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template<class T> struct remove_cvref: std::remove_cv< typename std::remove_reference<T>::type >
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{
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};
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} // namespace _mfi
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namespace _mfi
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{
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#define BOOST_MEM_FN_NAME(X) X
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#define BOOST_MEM_FN_CC
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#include <boost/bind/mem_fn_template.hpp>
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NAME
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#if defined(BOOST_MEM_FN_ENABLE_CDECL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_cdecl
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#define BOOST_MEM_FN_CC __cdecl
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#include <boost/bind/mem_fn_template.hpp>
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NAME
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#endif
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#if defined(BOOST_MEM_FN_ENABLE_STDCALL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_stdcall
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#define BOOST_MEM_FN_CC __stdcall
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#include <boost/bind/mem_fn_template.hpp>
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NAME
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#endif
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#if defined(BOOST_MEM_FN_ENABLE_FASTCALL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_fastcall
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#define BOOST_MEM_FN_CC __fastcall
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#include <boost/bind/mem_fn_template.hpp>
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NAME
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#endif
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} // namespace _mfi
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//
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#define BOOST_MEM_FN_NAME(X) X
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#define BOOST_MEM_FN_CC
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#define BOOST_MEM_FN_NOEXCEPT
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#include <boost/bind/mem_fn_cc.hpp>
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#if defined( __cpp_noexcept_function_type ) || defined( _NOEXCEPT_TYPES_SUPPORTED )
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# undef BOOST_MEM_FN_NOEXCEPT
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# define BOOST_MEM_FN_NOEXCEPT noexcept
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# include <boost/bind/mem_fn_cc.hpp>
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#endif
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#undef BOOST_MEM_FN_NAME
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NOEXCEPT
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#if defined(BOOST_MEM_FN_ENABLE_CDECL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_cdecl
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#define BOOST_MEM_FN_CC __cdecl
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#define BOOST_MEM_FN_NOEXCEPT
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#include <boost/bind/mem_fn_cc.hpp>
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#undef BOOST_MEM_FN_NAME
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NOEXCEPT
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#endif
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#if defined(BOOST_MEM_FN_ENABLE_STDCALL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_stdcall
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#define BOOST_MEM_FN_CC __stdcall
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#define BOOST_MEM_FN_NOEXCEPT
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#include <boost/bind/mem_fn_cc.hpp>
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#undef BOOST_MEM_FN_NAME
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NOEXCEPT
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#endif
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#if defined(BOOST_MEM_FN_ENABLE_FASTCALL) && !defined(_M_X64)
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#define BOOST_MEM_FN_NAME(X) X##_fastcall
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#define BOOST_MEM_FN_CC __fastcall
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#define BOOST_MEM_FN_NOEXCEPT
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#include <boost/bind/mem_fn_cc.hpp>
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#undef BOOST_MEM_FN_NAME
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#undef BOOST_MEM_FN_CC
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#undef BOOST_MEM_FN_NOEXCEPT
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#endif
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// data member support
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namespace _mfi
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{
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template<class R, class T> class dm
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{
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public:
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typedef R const & result_type;
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typedef T const * argument_type;
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private:
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typedef R (T::*Pm);
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Pm pm_;
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public:
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explicit dm( Pm pm ): pm_( pm ) {}
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template<class U,
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class Ud = typename _mfi::remove_cvref<U>::type,
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class En = typename std::enable_if<
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std::is_same<T, Ud>::value || std::is_base_of<T, Ud>::value
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>::type
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>
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auto operator()( U&& u ) const -> decltype( std::forward<U>( u ).*pm_ )
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{
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return std::forward<U>( u ).*pm_;
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}
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template<class U,
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class Ud = typename _mfi::remove_cvref<U>::type,
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class E1 = void,
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class En = typename std::enable_if<
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!(std::is_same<T, Ud>::value || std::is_base_of<T, Ud>::value)
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>::type
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>
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auto operator()( U&& u ) const -> decltype( get_pointer( std::forward<U>( u ) )->*pm_ )
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{
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return get_pointer( std::forward<U>( u ) )->*pm_;
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}
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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template<class U>
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R& operator()( U* u ) const
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{
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return u->*pm_;
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}
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template<class U>
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R const& operator()( U const* u ) const
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{
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return u->*pm_;
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}
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#endif
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bool operator==( dm const & rhs ) const
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{
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return pm_ == rhs.pm_;
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}
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bool operator!=( dm const & rhs ) const
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{
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return pm_ != rhs.pm_;
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}
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};
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} // namespace _mfi
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template<class R, class T> _mfi::dm<R, T> mem_fn(R T::*f)
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{
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return _mfi::dm<R, T>(f);
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}
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} // namespace boost
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#endif // #ifndef BOOST_BIND_MEM_FN_HPP_INCLUDED
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