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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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libc/math/log_data.h Normal file
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/*
* Copyright (c) 2018, Arm Limited.
* SPDX-License-Identifier: MIT
*/
#ifndef _LOG_DATA_H
#define _LOG_DATA_H
#define LOG_TABLE_BITS 7
#define LOG_POLY_ORDER 6
#define LOG_POLY1_ORDER 12
extern const struct log_data {
double ln2hi;
double ln2lo;
double poly[LOG_POLY_ORDER - 1]; /* First coefficient is 1. */
double poly1[LOG_POLY1_ORDER - 1];
struct {
double invc, logc;
} tab[1 << LOG_TABLE_BITS];
#if !__FP_FAST_FMA
struct {
double chi, clo;
} tab2[1 << LOG_TABLE_BITS];
#endif
} __log_data;
#endif