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