numbers.hpp

Go to the documentation of this file.

/*
 * libfxd - a fixed-point library for C++
 *
 * Copyright 2023 Daniel K. O.
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef LIBFXD_NUMBERS_HPP
#define LIBFXD_NUMBERS_HPP
 
#include <numbers>
 
#include "concepts.hpp"
 
 
namespace std::numbers {
 
#ifdef __cpp_lib_constexpr_cmath
#    define LIBFXD_CONSTEXPR constexpr
#else
#    define LIBFXD_CONSTEXPR const
#endif
 
#define LIBFXD_NUMBER(c)                                                \
    template<fxd::fixed_point Fxd>                                      \
    inline LIBFXD_CONSTEXPR                                             \
    Fxd c<Fxd> = Fxd{std::numbers:: c <typename std::numeric_limits<Fxd>::float_type>}
 
    LIBFXD_NUMBER(e_v);
 
    LIBFXD_NUMBER(egamma_v);
 
    LIBFXD_NUMBER(inv_pi_v);
 
    LIBFXD_NUMBER(inv_sqrt3_v);
 
    LIBFXD_NUMBER(inv_sqrtpi_v);
 
    LIBFXD_NUMBER(ln10_v);
 
    LIBFXD_NUMBER(ln2_v);
 
    LIBFXD_NUMBER(log10e_v);
 
    LIBFXD_NUMBER(log2e_v);
 
    LIBFXD_NUMBER(phi_v);
 
    LIBFXD_NUMBER(pi_v);
 
    LIBFXD_NUMBER(sqrt2_v);
 
    LIBFXD_NUMBER(sqrt3_v);
 
 
#undef LIBFXD_NUMBER
#undef LIBFXD_CONSTEXPR
 
}
 
#endif