RAND

Section: C Library Functions (3)
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BSD mandoc

NAME

rand srand - bad random number generator

SYNOPSIS

Fd #include <stdlib.h> Ft void Fn srand unsigned seed Ft int Fn rand void

DESCRIPTION

Bf -symbolic These interfaces are obsoleted by random(3). Ef

The Fn rand function computes a sequence of pseudo-random integers in the range of 0 to RAND_MAX (as defined by the header file Aq Pa stdlib.h ) .

The Fn srand function sets its argument as the seed for a new sequence of pseudo-random numbers to be returned by Fn rand . These sequences are repeatable by calling Fn srand with the same seed value.

If no seed value is provided, the functions are automatically seeded with a value of 1.

STANDARDS

The Fn rand and Fn srand functions conform to St -ansiC .