pow_data.h\math\src - musl - musl - an implementation of the standard library for Linux-based systems

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path: root/src/math/pow_data.h
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/*
 * Copyright (c) 2018, Arm Limited.
 * SPDX-License-Identifier: MIT
 */
#ifndef _POW_DATA_H
#define _POW_DATA_H
#include <features.h>
#define POW_LOG_TABLE_BITS 7
#define POW_LOG_POLY_ORDER 8
extern hidden const struct pow_log_data {
	double ln2hi;
	double ln2lo;
	double poly[POW_LOG_POLY_ORDER - 1]; /* First coefficient is 1. */
	/* Note: the pad field is unused, but allows slightly faster indexing. */
	struct {
		double invc, pad, logc, logctail;
	} tab[1 << POW_LOG_TABLE_BITS];
} __pow_log_data;
#endif
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