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Annotation of gforth/engine/pow10.c, revision 1.1

1.1     ! anton       1: /* a simple pow10 implementation
        !             2: 
        !             3:   Copyright (C) 1995 Free Software Foundation, Inc.
        !             4: 
        !             5:   This file is part of Gforth.
        !             6: 
        !             7:   Gforth is free software; you can redistribute it and/or
        !             8:   modify it under the terms of the GNU General Public License
        !             9:   as published by the Free Software Foundation; either version 2
        !            10:   of the License, or (at your option) any later version.
        !            11: 
        !            12:   This program is distributed in the hope that it will be useful,
        !            13:   but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15:   GNU General Public License for more details.
        !            16: 
        !            17:   You should have received a copy of the GNU General Public License
        !            18:   along with this program; if not, write to the Free Software
        !            19:   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !            20: */
        !            21: #include <math.h>
        !            22: 
        !            23: #ifndef M_LN10
        !            24: #define M_LN10      2.30258509299404568402
        !            25: #endif
        !            26: 
        !            27: #ifndef _ANSI_MATH_H
        !            28: /* this should be defined by math.h; If it is not, the miranda
        !            29:  *    prototype would be wrong; Since we prefer compile-time errors to
        !            30:  *    run-time errors, it's declared here. */
        !            31: extern double exp(double);
        !            32: 
        !            33: #endif /* _ANSI_MATH_H */
        !            34: 
        !            35: double pow10(double x)
        !            36: {
        !            37:   return exp(x*M_LN10);
        !            38: }