91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2012-2022 John Maddock.
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// Copyright 2022 Matt Borland. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
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#ifndef BOOST_MP_STD_INTEGER_TRAITS_HPP
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#define BOOST_MP_STD_INTEGER_TRAITS_HPP
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#include <type_traits>
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#include <boost/multiprecision/detail/standalone_config.hpp>
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namespace boost {
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namespace multiprecision {
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namespace detail {
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template <class T>
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struct is_signed : public std::is_signed<T> {};
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template <class T>
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struct is_unsigned : public std::is_unsigned<T> {};
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template <class T>
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struct is_integral : public std::is_integral<T> {};
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template <class T>
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struct is_arithmetic : public std::is_arithmetic<T> {};
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template <class T>
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struct make_unsigned : public std::make_unsigned<T> {};
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template <class T>
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struct make_signed : public std::make_signed<T> {};
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#ifdef BOOST_HAS_INT128
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template <>
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struct is_signed<int128_type> : public std::true_type {};
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template <>
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struct is_signed<uint128_type> : public std::false_type {};
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template <>
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struct is_unsigned<int128_type> : public std::false_type {};
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template <>
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struct is_unsigned<uint128_type> : public std::true_type {};
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template <>
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struct is_integral<int128_type> : public std::true_type {};
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template <>
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struct is_integral<uint128_type> : public std::true_type {};
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template <>
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struct is_arithmetic<int128_type> : public std::true_type {};
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template <>
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struct is_arithmetic<uint128_type> : public std::true_type {};
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template <>
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struct make_unsigned<int128_type>
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{
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using type = uint128_type;
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};
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template <>
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struct make_unsigned<uint128_type>
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{
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using type = uint128_type;
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};
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template <>
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struct make_signed<int128_type>
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{
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using type = int128_type;
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};
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template <>
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struct make_signed<uint128_type>
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{
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using type = int128_type;
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};
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#endif
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// C++17-esque helpers
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#if defined(__cpp_variable_templates) && __cpp_variable_templates >= 201304L
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template <typename T>
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BOOST_INLINE_CONSTEXPR bool is_signed_v = is_signed<T>::value;
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template <typename T>
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BOOST_INLINE_CONSTEXPR bool is_unsigned_v = is_unsigned<T>::value;
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template <typename T>
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BOOST_INLINE_CONSTEXPR bool is_integral_v = is_integral<T>::value;
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template <typename T>
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BOOST_INLINE_CONSTEXPR bool is_arithmetic_v = is_arithmetic<T>::value;
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#endif
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template <typename T>
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using make_unsigned_t = typename make_unsigned<T>::type;
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template <typename T>
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using make_signed_t = typename make_signed<T>::type;
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}}} // namespace boost::multiprecision::detail
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#endif
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