Moved random routines from Utils/ to Math/
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curt
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34e2bac4d0
commit
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3 changed files with 127 additions and 1 deletions
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@ -26,7 +26,7 @@
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TARGET = libMath.a
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CFILES = MAT3geom.c MAT3inv.c MAT3mat.c MAT3vec.c polar.c
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CFILES = MAT3geom.c MAT3inv.c MAT3mat.c MAT3vec.c fg_random.c polar.c
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OFILES = $(CFILES:.c=.o)
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@ -68,12 +68,18 @@ MAT3mat.o:
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MAT3vec.o:
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$(CC) $(CFLAGS) -c $< -o $@
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fg_random.o:
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$(CC) $(CFLAGS) -c fg_random.c -o $@
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polar.o:
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$(CC) $(CFLAGS) -c polar.c -o $@
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#---------------------------------------------------------------------------
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# $Log$
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# Revision 1.11 1997/07/30 16:04:08 curt
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# Moved random routines from Utils/ to Math/
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#
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# Revision 1.10 1997/07/20 02:19:11 curt
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# First stab at a system to generate os2 makefiles automatically.
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#
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68
Math/fg_random.c
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68
Math/fg_random.c
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@ -0,0 +1,68 @@
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/**************************************************************************
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* fg_random.c -- routines to handle random number generation
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*
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* Written by Curtis Olson, started July 1997.
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*
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* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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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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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#include <stdlib.h> /* for random(), srandom() */
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#include <time.h> /* for time() to seed srandom() */
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#include "fg_random.h"
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#ifndef USE_RAND
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# ifdef sgi
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# undef RAND_MAX
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# define RAND_MAX 2147483647
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# endif
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#endif
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/* Seed the random number generater with time() so we don't see the
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* same sequence every time */
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void fg_srandom(void) {
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#ifdef USE_RAND
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srand(time(NULL));
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#else
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srandom(time(NULL));
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#endif
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}
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/* return a random number between [0.0, 1.0) */
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double fg_random(void) {
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#ifdef USE_RAND
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return(rand() / (double)RAND_MAX);
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#else
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return(random() / (double)RAND_MAX);
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#endif
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}
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/* $Log$
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/* Revision 1.1 1997/07/30 16:04:09 curt
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/* Moved random routines from Utils/ to Math/
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/*
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* Revision 1.1 1997/07/19 22:31:57 curt
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* Initial revision.
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*
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*/
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52
Math/fg_random.h
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52
Math/fg_random.h
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@ -0,0 +1,52 @@
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/**************************************************************************
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* fg_random.h -- routines to handle random number generation
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*
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* Written by Curtis Olson, started July 1997.
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*
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* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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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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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#ifndef FG_RANDOM_H
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#define FG_RANDOM_H
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/* Seed the random number generater with time() so we don't see the
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* same sequence every time */
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void fg_srandom(void);
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/* return a random number between [0.0, 1.0) */
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double fg_random(void);
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#endif /* FG_RANDOM_H */
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/* $Log$
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/* Revision 1.1 1997/07/30 16:04:09 curt
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/* Moved random routines from Utils/ to Math/
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/*
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* Revision 1.2 1997/07/23 21:52:28 curt
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* Put comments around the text after an #endif for increased portability.
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*
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* Revision 1.1 1997/07/19 22:31:57 curt
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* Initial revision.
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*
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*/
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