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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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libc/math/exp_data.h Normal file
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/*
* Copyright (c) 2018, Arm Limited.
* SPDX-License-Identifier: MIT
*/
#ifndef _EXP_DATA_H
#define _EXP_DATA_H
#define EXP_TABLE_BITS 7
#define EXP_POLY_ORDER 5
#define EXP_USE_TOINT_NARROW 0
#define EXP2_POLY_ORDER 5
extern 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