is_floating_point.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_TYPE_TRAITS_IS_FLOATING_POINT_HPP
#define TETL_TYPE_TRAITS_IS_FLOATING_POINT_HPP
 
#include <etl/_mpl/contains.hpp>
#include <etl/_type_traits/bool_constant.hpp>
#include <etl/_type_traits/remove_cv.hpp>
 
namespace etl {
 
/// \brief Checks whether T is a floating-point type. Provides the member
/// constant value which is equal to true, if T is the type float, double, long
/// double, including any cv-qualified variants. Otherwise, value is equal to
/// false.
///
/// \details The behavior of a program that adds specializations for
/// is_floating_point or is_floating_point_v is undefined.
template <typename T>
struct is_floating_point : bool_constant<mpl::contains_v<remove_cv_t<T>, mpl::list<float, double, long double>>> { };
 
template <typename T>
inline constexpr bool is_floating_point_v = is_floating_point<T>::value;
 
} // namespace etl
 
#endif // TETL_TYPE_TRAITS_IS_FLOATING_POINT_HPP