Sprout/sprout/math/compare.hpp
bolero-MURAKAMI cb1077d247 add copyright
2013-08-08 18:54:33 +09:00

36 lines
1.1 KiB
C++

/*=============================================================================
Copyright (c) 2011-2013 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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)
=============================================================================*/
#ifndef SPROUT_MATH_COMPARE_HPP
#define SPROUT_MATH_COMPARE_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/equal_to.hpp>
#include <sprout/math/less.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
namespace math {
//
// compare
//
template<
typename T, typename U,
typename sprout::enabler_if<std::is_arithmetic<T>::value && std::is_arithmetic<U>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR int
compare(T x, U y) {
return sprout::math::equal_to(x, y) ? 0
: sprout::math::less(x, y) ? -1
: 1
;
}
} // namespace math
} // namespace sprout
#endif // #ifndef SPROUT_MATH_COMPARE_HPP