/*
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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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* Copyright (c) 2018 Andrey Semashev
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*/
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/*!
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* \file atomic/detail/type_traits/is_iec559.hpp
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*
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* This header defines \c is_iec559 type trait
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*/
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#ifndef BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_IEC559_HPP_INCLUDED_
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#define BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_IEC559_HPP_INCLUDED_
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#include <limits>
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#include <boost/atomic/detail/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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namespace atomics {
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namespace detail {
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template< typename T >
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struct is_iec559
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{
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static BOOST_CONSTEXPR_OR_CONST bool value = !!std::numeric_limits< T >::is_iec559;
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};
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#if defined(BOOST_HAS_FLOAT128)
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// libstdc++ does not specialize numeric_limits for __float128
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template< >
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struct is_iec559< boost::float128_type >
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{
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static BOOST_CONSTEXPR_OR_CONST bool value = true;
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};
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#endif // defined(BOOST_HAS_FLOAT128)
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} // namespace detail
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} // namespace atomics
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} // namespace boost
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#endif // BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_IEC559_HPP_INCLUDED_
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