From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: random number?
Date:	Fri, 15 Aug 1997 22:28:11 +0000
Organization:	Two pounds of chaos and a pinch of salt
Lines:	47
Message-ID:	<33F4D7FB.74A2@cs.com>
References:	<33F3CA35 DOT 29B3 AT erols DOT com>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp108.cs.com
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Matt McFadden wrote:
> 
> How can I make a loop that returns or produces a random integer between
> 0-9 on each pass through the loop?

Example code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int rolldice( int ndice, int nsides )
{
    int i, sum;

    /* random returns 0 to MAXINT; clip it to a range with modulus */

    for ( sum = 0, i = 0; i < ndice; i++ )
        sum += random( ) % nsides + 1;

    return sum;
}

int main( void )
{
    int n, s;

    /* seed random number generator */

    srandom( (int) time( NULL ) );

    printf( "How many dice?  " );
    scanf( "%d", n );
    printf( "How many sides?  " );
    scanf( "%d", s );

    printf( "The result is %d.\n", rolldice( n, s ) );
    return 0;
}

-- 
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|      John M. Aldrich       |"A competent and self-confident person|
|       aka Fighteer I       | is incapable of jealousy in anything.|
|   mailto:fighteer AT cs DOT com   | Jealousy is invariably a symptom of  |
| http://www.cs.com/fighteer | neurotic insecurity."  - Lazarus Long|
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