mirror of http://192.168.1.51:8099/lmh188/twain3.0
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
//---------------------------------------------------------------------------//
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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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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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_DETAIL_DURATION_HPP
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#define BOOST_COMPUTE_DETAIL_DURATION_HPP
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#include <boost/config.hpp>
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#ifndef BOOST_COMPUTE_NO_HDR_CHRONO
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#include <chrono>
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#endif
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#ifndef BOOST_COMPUTE_NO_BOOST_CHRONO
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#include <boost/chrono/duration.hpp>
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#endif
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namespace boost {
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namespace compute {
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namespace detail {
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#ifndef BOOST_COMPUTE_NO_HDR_CHRONO
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template<class Rep, class Period>
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inline std::chrono::duration<Rep, Period>
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make_duration_from_nanoseconds(std::chrono::duration<Rep, Period>, size_t nanoseconds)
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{
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return std::chrono::duration_cast<std::chrono::duration<Rep, Period> >(
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std::chrono::nanoseconds(nanoseconds)
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);
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}
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#endif // BOOST_COMPUTE_NO_HDR_CHRONO
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#ifndef BOOST_COMPUTE_NO_BOOST_CHRONO
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template<class Rep, class Period>
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inline boost::chrono::duration<Rep, Period>
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make_duration_from_nanoseconds(boost::chrono::duration<Rep, Period>, size_t nanoseconds)
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{
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return boost::chrono::duration_cast<boost::chrono::duration<Rep, Period> >(
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boost::chrono::nanoseconds(nanoseconds)
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);
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}
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#endif // BOOST_COMPUTE_NO_BOOST_CHRONO
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} // end detail namespace
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} // end compute namespace
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} // end boost namespace
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#endif // BOOST_COMPUTE_DETAIL_DURATION_HPP
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