exp_data.h

Go to the documentation of this file.

/*
 * PROJECT:     ReactOS CRT
 * LICENSE:     MIT (https://spdx.org/licenses/MIT)
 * PURPOSE:     Data tables for exp and pow.
 * COPYRIGHT:   Imported from musl libc
 *              https://git.musl-libc.org/cgit/musl/tree/src/math/exp_data.h
 *              blob: 3e24bac57a80f46c4a7b75aefe7215df810e85b6
 *              See https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT
 */
 
/*
 * Copyright (c) 2018, Arm Limited.
 * SPDX-License-Identifier: MIT
 */
#ifndef _EXP_DATA_H
#define _EXP_DATA_H
 
#include "libm.h"
#include <stdint.h>
 
#define EXP_TABLE_BITS 7
#define EXP_POLY_ORDER 5
#define EXP_USE_TOINT_NARROW 0
#define EXP2_POLY_ORDER 5
extern hidden const struct exp_data {
    double invln2N;
    double shift;
    double negln2hiN;
    double negln2loN;
    double poly[4]; /* Last four coefficients.  */
    double exp2_shift;
    double exp2_poly[EXP2_POLY_ORDER];
    uint64_t tab[2*(1 << EXP_TABLE_BITS)];
} __exp_data;
 
#endif