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/* Copyright (C) 1999-2025 by The D Language Foundation, All Rights Reserved
* written by Walter Bright
* https://www.digitalmars.com
* Distributed under the Boost Software License, Version 1.0.
* https://www.boost.org/LICENSE_1_0.txt
* https://github.com/dlang/dmd/blob/master/src/dmd/root/ctfloat.h
*/
#pragma once
#include "dcompat.h"
#include "longdouble.h"
// Type used by the front-end for compile-time reals
typedef longdouble real_t;
// Compile-time floating-point helper
struct CTFloat
{
static void yl2x(const real_t *x, const real_t *y, real_t *res);
static void yl2xp1(const real_t *x, const real_t *y, real_t *res);
static real_t sin(real_t x);
static real_t cos(real_t x);
static real_t tan(real_t x);
static real_t sqrt(real_t x);
static real_t fabs(real_t x);
static real_t ldexp(real_t n, int exp);
static real_t round(real_t x);
static real_t floor(real_t x);
static real_t ceil(real_t x);
static real_t trunc(real_t x);
static real_t log(real_t x);
static real_t log2(real_t x);
static real_t log10(real_t x);
static real_t pow(real_t x, real_t y);
static real_t exp(real_t x);
static real_t expm1(real_t x);
static real_t exp2(real_t x);
static real_t fmin(real_t x, real_t y);
static real_t fmax(real_t x, real_t y);
static real_t copysign(real_t x, real_t s);
static real_t fma(real_t x, real_t y, real_t z);
static bool isIdentical(real_t a, real_t b);
static bool isNaN(real_t r);
static bool isSNaN(real_t r);
static bool isInfinity(real_t r);
static real_t parse(const char *literal, bool& isOutOfRange);
static int sprint(char *str, d_size_t size, char fmt, real_t x);
static size_t hash(real_t a);
// Constant real values 0, 1, -1 and 0.5.
static real_t zero;
static real_t one;
static real_t minusone;
static real_t half;
static void initialize();
};
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