rand()

Generate a pseudo-random integer

Synopsis:

#include <stdlib.h>

int rand( void );

Library:

libc

Description:

The rand() function computes a pseudo-random integer in the range 0 to RAND_MAX. The sequence can be started at different values by calling the srand() function.

Returns:

A pseudo-random integer.

Examples:

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

int main( void )
{
    int i;

    for( i=1; i < 10; ++i ) {
        printf( "%d\n", rand() );
    }
    
    return EXIT_SUCCESS;
}

Classification:

ANSI

Safety:
Cancellation point	No
Interrupt handler	Yes
Signal handler	Yes
Thread	No