constants.hpp

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// SPDX-License-Identifier: MIT
#ifndef LIBSBX_MATH_CONSTANTS_HPP_
#define LIBSBX_MATH_CONSTANTS_HPP_
 
#include <cstdint>
#include <cmath>
#include <limits>
#include <numbers>
 
#include <libsbx/math/concepts.hpp>
 
namespace sbx::math {
 
template<floating_point Type>
inline constexpr auto epsilon_v = std::numeric_limits<Type>::epsilon();
 
inline constexpr auto epsilonf = epsilon_v<std::float_t>;
 
inline constexpr auto epsilond = epsilon_v<std::double_t>;
 
inline constexpr auto epsilon = epsilonf;
 
template<floating_point Type>
inline constexpr auto pi_v = std::numbers::pi_v<Type>;
 
inline constexpr auto pif = pi_v<std::float_t>;
 
inline constexpr auto pid = pi_v<std::double_t>;
 
inline constexpr auto pi = pif;
 
template<floating_point Type>
inline constexpr auto two_pi_v = static_cast<Type>(2) * pi_v<Type>;
 
inline constexpr auto two_pif = two_pi_v<std::float_t>;
 
inline constexpr auto two_pid = two_pi_v<std::double_t>;
 
inline constexpr auto two_pi = two_pif;
 
} // namespace sbx::math
 
#endif // LIBSBX_MATH_CONSTANTS_HPP_