/*============================================================================= Copyright (c) 2011-2016 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_EXP10_HPP #define SPROUT_MATH_EXP10_HPP #include <type_traits> #include <sprout/config.hpp> #include <sprout/limits.hpp> #include <sprout/math/detail/config.hpp> #include <sprout/math/detail/float_compute.hpp> #include <sprout/math/constants.hpp> #include <sprout/math/isnan.hpp> #include <sprout/math/exp.hpp> #include <sprout/type_traits/enabler_if.hpp> namespace sprout { namespace math { namespace detail { template<typename T> inline SPROUT_CONSTEXPR T exp10_impl(T x) { return sprout::math::exp(x * sprout::math::ln_ten<T>()); } } // namespace detail // // exp10 // template< typename FloatType, typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler > inline SPROUT_CONSTEXPR FloatType exp10(FloatType x) { return sprout::math::isnan(x) ? x : x == -sprout::numeric_limits<FloatType>::infinity() ? FloatType(0) : x == sprout::numeric_limits<FloatType>::infinity() ? sprout::numeric_limits<FloatType>::infinity() : x == 0 ? FloatType(1) : static_cast<FloatType>(sprout::math::detail::exp10_impl(static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x))) ; } template< typename IntType, typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler > inline SPROUT_CONSTEXPR double exp10(IntType x) { return sprout::math::exp10(static_cast<double>(x)); } } // namespace math using sprout::math::exp10; } // namespace sprout #endif // #ifndef SPROUT_MATH_EXP10_HPP