63e88f80
 Hu Chunming
提交三方库
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// Copyright Oliver Kowalke 2014.
// 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)
#ifndef BOOST_CONTEXT_DETAIL_EXCHANGE_H
#define BOOST_CONTEXT_DETAIL_EXCHANGE_H
#include <algorithm>
#include <utility>
#include <boost/config.hpp>
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
namespace boost {
namespace context {
namespace detail {
template< typename T, typename U = T >
T exchange( T & t, U && nv) {
T ov = std::move( t);
t = std::forward< U >( nv);
return ov;
}
}}}
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_CONTEXT_DETAIL_EXCHANGE_H
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