rand(3)rand(3)Name
rand, srand - random number generator
Syntax
#include <stdlib.h>
void srand(seed)
unsigned seed;
rand()Description
The newer should be used in new applications. The subroutine remains
for compatibility.
The subroutine uses a multiplicative congruential random number genera‐
tor with period 232 to return successive pseudo-random numbers in the
range from 0 to 231-1.
The generator is reinitialized by calling with 1 as argument. It can
be set to a random starting point by calling with whatever you like as
argument.
Environment
For the System V environment, the subroutine returns numbers in the
range from 0 to 215-1.
See Alsorandom(3)rand(3)