use_big_type_when_one_byte_t.hpp

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/*=============================================================================
  Copyright (C) 2015-2017 DxLibEx project
  https://github.com/Nagarei/DxLibEx/

  Distributed under the Boost Software License, Version 1.0.
  (See http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef DXLE_INC_BASIC_TYPES_ARTHMETIC_T_HPP_
#define DXLE_INC_BASIC_TYPES_ARTHMETIC_T_HPP_
#include "dxlibex/type_traits/first_enabled.hpp"
#include "dxlibex/type_traits/enable_if.hpp"
namespace dxle {
    namespace detail {
        template<typename T, bool is_arithmetic>
        struct use_big_type_when_one_byte_impl {
            using type = T;
        };
        template<typename T>
        struct use_big_type_when_one_byte_impl<T, true> : first_enabled<
            enable_if<1 != sizeof(T), T>,
            enable_if<std::is_signed<T>::value, int>,
            unsigned int
        >
        {};
    }
    template<typename T>
    struct use_big_type_when_one_byte : dxle::detail::use_big_type_when_one_byte_impl<T, std::is_arithmetic<T>::value> {};
    template<typename T>
    using use_big_type_when_one_byte_t = typename use_big_type_when_one_byte<T>::type;
}
#endif //DXLE_INC_BASIC_TYPES_ARTHMETIC_T_HPP_