Sprout/sprout/math/iszero.hpp
2015-01-10 19:13:57 +09:00

41 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2015 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_ISZERO_HPP
#define SPROUT_MATH_ISZERO_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
namespace math {
//
// iszero
//
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR bool
iszero(FloatType x) {
return x == 0;
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR bool
iszero(IntType x) {
return x == 0;
}
} // namespace math
using sprout::math::iszero;
} // namespace sprout
#endif // #ifndef SPROUT_MATH_ISZERO_HPP