liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
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#ifndef BOOST_ENDIAN_DETAIL_IS_TRIVIALLY_COPYABLE_HPP_INCLUDED
#define BOOST_ENDIAN_DETAIL_IS_TRIVIALLY_COPYABLE_HPP_INCLUDED
 
// Copyright 2019 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
 
#include <boost/config.hpp>
#include <boost/type_traits/has_trivial_copy.hpp>
#include <boost/type_traits/has_trivial_assign.hpp>
#include <boost/type_traits/has_trivial_destructor.hpp>
 
#if !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
# include <type_traits>
#endif
 
namespace boost
{
namespace endian
{
namespace detail
{
 
#if !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
 
using std::is_trivially_copyable;
 
#else
 
template<class T> struct is_trivially_copyable: boost::integral_constant<bool,
    boost::has_trivial_copy<T>::value && boost::has_trivial_assign<T>::value && boost::has_trivial_destructor<T>::value> {};
 
#endif
 
} // namespace detail
} // namespace endian
} // namespace boost
 
#endif  // BOOST_ENDIAN_DETAIL_IS_TRIVIALLY_COPYABLE_HPP_INCLUDED