File:  [gforth] / gforth / engine / pow10.c
Revision 1.8: download - view: text, annotated - select for diffs
Mon Dec 31 19:02:25 2007 UTC (11 years, 5 months ago) by anton
Branches: MAIN
CVS tags: v0-7-0, HEAD
updated copyright year after changing license notice

/* a simple pow10 implementation

  Copyright (C) 1995,1998,2000,2003,2007 Free Software Foundation, Inc.

  This file is part of Gforth.

  Gforth is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation, either version 3
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, see
#include <math.h>

#ifndef M_LN10
#define M_LN10      2.30258509299404568402

#if !defined(_ANSI_MATH_H) && !defined(exp)
/* this should be defined by math.h; If it is not, the miranda
 *    prototype would be wrong; Since we prefer compile-time errors to
 *    run-time errors, it's declared here. */
extern double exp(double);

#endif /* _ANSI_MATH_H */

double pow10(double x)
  return exp(x*M_LN10);

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