51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
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// Copyright Oliver Kowalke 2014.
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// Distributed under the Boost Software License, Version 1.0.
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// (See 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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#ifndef BOOST_CONTEXT_DETAIL_INVOKE_H
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#define BOOST_CONTEXT_DETAIL_INVOKE_H
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#include <functional>
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#include <type_traits>
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#include <utility>
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#include <boost/config.hpp>
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#include <boost/context/detail/config.hpp>
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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namespace boost {
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namespace context {
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namespace detail {
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template< typename Fn, typename ... Args >
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typename std::enable_if<
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std::is_member_pointer< typename std::decay< Fn >::type >::value,
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typename std::result_of< Fn &&( Args && ... ) >::type
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>::type
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invoke( Fn && fn, Args && ... args) {
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return std::mem_fn( fn)( std::forward< Args >( args) ... );
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}
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template< typename Fn, typename ... Args >
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typename std::enable_if<
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! std::is_member_pointer< typename std::decay< Fn >::type >::value,
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typename std::result_of< Fn &&( Args && ... ) >::type
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>::type
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invoke( Fn && fn, Args && ... args) {
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return std::forward< Fn >( fn)( std::forward< Args >( args) ... );
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}
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}}}
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#ifdef BOOST_HAS_ABI_HEADERS
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#include BOOST_ABI_SUFFIX
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#endif
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#endif // BOOST_CONTEXT_DETAIL_INVOKE_H
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