CS201 Assignment No.1 Solution and Discussion Fall 2014 18th November 2014

[Vuhelper]

srand() function

Description

The C library function void srand(unsigned int seed) seeds the random number generator used by the function rand.

Declaration

Following is the declaration for srand() function.

void srand(unsigned int seed)

Parameters

seed -- This is an integer value to be used as seed by the pseudo-random number generator algorithm.
Return Value

This function does not return any value.

Example

The following example shows the usage of srand() function.

#include<iostream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
using namespace std;
int main()
{
int i, n;
time_t t;

n = 5;

/* Intializes random number generator */
srand((unsigned) time(NULL));

/* Print 5 random numbers from 0 to 50 */
for( i = 0 ; i < n ; i++ ) {
coutrand() % 50"\n";
}

return(0);
}



return(0);

}

Sample Result

38

45

29

29

47