2007-12-30 17:41:49 +01:00
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/***************************************************************************
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2009-08-17 12:41:51 +02:00
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gbx_math.h
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2007-12-30 17:41:49 +01:00
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2011-12-31 03:39:20 +01:00
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(c) 2000-2012 Benoît Minisini <gambas@users.sourceforge.net>
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2007-12-30 17:41:49 +01:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2009-08-17 12:41:51 +02:00
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the Free Software Foundation; either version 2, or (at your option)
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2007-12-30 17:41:49 +01:00
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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2011-06-03 02:51:09 +02:00
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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2011-12-31 03:39:20 +01:00
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MA 02110-1301, USA.
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2007-12-30 17:41:49 +01:00
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***************************************************************************/
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#ifndef __GBX_MATH_H
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#define __GBX_MATH_H
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#include "config.h"
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2008-01-17 22:39:26 +01:00
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void MATH_init(void);
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2007-12-30 17:41:49 +01:00
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2008-01-17 22:39:26 +01:00
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int lsgn(int x);
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int llsgn(int64_t x);
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//int64_t llabs(int64_t x);
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2007-12-30 17:41:49 +01:00
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2008-01-17 22:39:26 +01:00
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double frac(double x);
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int fsgn(double x);
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float fixf(float x);
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double fix(double x);
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double frexp10(double x, int *exp);
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2008-01-17 22:39:26 +01:00
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void randomize(bool set, uint seed);
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double rnd(void);
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2007-12-30 17:41:49 +01:00
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2010-06-13 22:25:34 +02:00
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#define deg(_x) ((_x) * 180 / M_PI)
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#define rad(_x) ((_x) * M_PI / 180)
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2010-08-31 10:54:51 +02:00
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#ifndef HAVE_EXP10
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2008-01-17 22:39:26 +01:00
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double exp10(double x);
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2008-03-21 02:25:37 +01:00
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#endif
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#ifndef HAVE_LOG2
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double log2(double x);
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#endif
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#ifndef HAVE_EXP2
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double exp2(double x);
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2009-12-24 03:02:05 +01:00
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#endif
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2010-08-31 10:54:51 +02:00
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#ifndef HAVE_LOG10L
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long double log10l(long double x);
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#endif
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#ifndef HAVE_FABSL
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long double fabsl(long double x);
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#endif
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#ifndef HAVE_POWL
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2010-11-08 16:57:25 +01:00
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long double powl(long double x, long double y);
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#endif
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#ifndef HAVE_MODFL
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2010-11-08 16:57:25 +01:00
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long double modfl(long double x, long double *iptr);
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2008-03-21 02:25:37 +01:00
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#endif
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2007-12-30 17:41:49 +01:00
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#endif
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