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