From:	jlouwere AT galaxy DOT csc DOT calpoly DOT edu (Jan Louwerens)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: random numbers error in DJGPP
Date:	4 Feb 1997 04:23:35 GMT
Organization:	Cal Poly Computer Science Dept.
Lines:	26
Message-ID:	<5d6dk7$b2o@waldorf.csc.calpoly.edu>
References:	<32F44A89 DOT 3142 AT ix DOT netcom DOT com>
NNTP-Posting-Host:	galaxy.csc.calpoly.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Terence Ramos (de-bug AT ix DOT netcom DOT com) wrote:
: Hello...

: I have been having trouble to get DJGPP to give me random numbers.  I am
: using the function rand()... this is how my source looks like

: number = rand() % 100 + 1;

: that should give me a random number from 1 to 100 right?  well i keep on
: getting the same number which is 1.  So i took out the + 1 part and now
: i only get 0.  whats wrong here?  Any help would be appreciated...


Make sure you include the stdlib.h header file:
#include <stdlib.h>	// for rand() and srandom(int seed)

Also, you should seed the random number generator so that your values are 
different every time you run the program:
#include <time.h>

srandom(time(NULL));

---

JL

- Raw text -