erf.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2021 Tobias Hienzsch
 
#ifndef TETL_CMATH_ERF_HPP
#define TETL_CMATH_ERF_HPP
 
#include <etl/_3rd_party/gcem/gcem.hpp>
#include <etl/_concepts/integral.hpp>
 
namespace etl {
 
/// \ingroup cmath
/// @{
 
/// Computes the error function of arg.
/// \details https://en.cppreference.com/w/cpp/numeric/math/erf
[[nodiscard]] constexpr auto erf(float arg) noexcept -> float
{
    return etl::detail::gcem::erf(arg);
}
[[nodiscard]] constexpr auto erff(float arg) noexcept -> float
{
    return etl::detail::gcem::erf(arg);
}
[[nodiscard]] constexpr auto erf(double arg) noexcept -> double
{
    return etl::detail::gcem::erf(arg);
}
[[nodiscard]] constexpr auto erf(long double arg) noexcept -> long double
{
    return etl::detail::gcem::erf(arg);
}
[[nodiscard]] constexpr auto erfl(long double arg) noexcept -> long double
{
    return etl::detail::gcem::erf(arg);
}
[[nodiscard]] constexpr auto erf(integral auto arg) noexcept -> double
{
    return etl::detail::gcem::erf(double(arg));
}
 
/// @}
 
} // namespace etl
 
#endif // TETL_CMATH_ERF_HPP