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Initial commit of Command & Conquer Red Alert source code.

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LFeenanEA
2025-02-27 16:15:05 +00:00
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WIN32LIB/MISC/IRANDOM.CPP Normal file
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/*
** Command & Conquer Red Alert(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program 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
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** 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 <http://www.gnu.org/licenses/>.
*/
/***************************************************************************
** C O N F I D E N T I A L --- W E S T W O O D A S S O C I A T E S **
***************************************************************************
* *
* Project Name : LIBRARY *
* *
* File Name : IRANDOM.C *
* *
* Programmer : Barry W. Green *
* *
* Last Update : 10 Feb, 1995 [BWG] *
* *
*-------------------------------------------------------------------------*
* Functions: *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include <stdlib.h>
#include <time.h>
#include "misc.h"
/* IRANDOM ----------------------------------------------------------
IRandom returns a random value between min and max inclusive.
INPUTS: int min and int max
RETURNS: int random number
*/
int IRandom(int minval, int maxval)
{
int num,mask;
// Keep minval and maxval straight.
if (minval > maxval) {
minval ^= maxval;
maxval ^= minval;
minval ^= maxval;
}
mask = Get_Random_Mask(maxval - minval);
while( (num = (rand() & mask) + minval) > maxval ) ;
return(num);
}