RAND(3C) BSD RAND(3C)
NAME
rand, srand - random number generator
SYNOPSIS
srand(seed)
int seed;
rand()
DESCRIPTION
The newer random(3) should be used in new applications; rand remains for
compatibilty.
rand uses a multiplicative congruential random number generator with
period 2**32 to return successive pseudo-random numbers in the range from
0 to (2**31)-1
The generator is reinitialized by calling srand with 1 as argument. It
can be set to a random starting point by calling srand with whatever you
like as argument.
SEE ALSO
random(3)