Originally Posted by devnar

http://www.cprogramming.com/tutorial/random.html

Originally Posted by Narue

>I do not understand the code. Thats why I wanted a page in C that
>tells me how to use rand()/srand() to generate a number between 0 and 3.
Sorry, I'm not smart enough to dumb it down enough for you to understand. If you can't take int r = rand() % N; and turn it into int r = rand() % 4; with a two full tutorials backing it up, you're clearly out of my league.

Originally Posted by Narue

take int r = rand() % N; and turn it into int r = rand() % 4;

Originally Posted by riahc3

So what: N is now 4? But because you say so? And why 4/n?

Originally Posted by riahc3

If there is a page that explains the part of the funtion and the parameters, thats what Im looking for.

Originally Posted by niek_e

You asked for 0-3 right? How many numbers are that? Holy ****! It's four!


You really aren't the sharpest knife in the shed are you?

I'll give it a try :
You. Read. Tutorial.
Click this blue underlined word

Originally Posted by minas1

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#include <stdlib.h> /* needed for rand() function */
#include <time.h> /*needed to call srand() (explained below)*/
 
int main(void)
{
	int r = 0;
 
	/* by calling this function, we seed the random number generator. If we don't seed it, we will get the
	same numbers every time we generate random numbers*/
	srand(time(0)); 
 
	/* rand() returns a number from 0 to RAND_MAX (you can output it to see)
	by using the % (modulus) operator on a number, the number you will get is from 0 to number-1 */
	r = rand() % 4;  /* so this returns a number from 0 to 3 */
 
	r = 1 + rand() % 4; /* 1 to 4  and so on*/
 
	return 0;
}

#include <stdlib.h> /* needed for rand() function */ #include <time.h> /*needed to call srand() (explained below)*/ int main(void) { int r = 0; /* by calling this function, we seed the random number generator. If we don't seed it, we will get the same numbers every time we generate random numbers*/ srand(time(0)); /* rand() returns a number from 0 to RAND_MAX (you can output it to see) by using the % (modulus) operator on a number, the number you will get is from 0 to number-1 */ r = rand() % 4; /* so this returns a number from 0 to 3 */ r = 1 + rand() % 4; /* 1 to 4 and so on*/ return 0; }