logf_data.h raw

   1  /*
   2   * Copyright (c) 2017-2018, Arm Limited.
   3   * SPDX-License-Identifier: MIT
   4   */
   5  #ifndef _LOGF_DATA_H
   6  #define _LOGF_DATA_H
   7  
   8  #include <features.h>
   9  
  10  #define LOGF_TABLE_BITS 4
  11  #define LOGF_POLY_ORDER 4
  12  extern hidden const struct logf_data {
  13  	struct {
  14  		double invc, logc;
  15  	} tab[1 << LOGF_TABLE_BITS];
  16  	double ln2;
  17  	double poly[LOGF_POLY_ORDER - 1]; /* First order coefficient is 1.  */
  18  } __logf_data;
  19  
  20  #endif
  21