shithub: purgatorio

ref: e2e50a8e5a74452672f9418bcdfe4de10f600ed0
dir: /man/2/rand/

View raw version
.TH RAND 2
.SH NAME
rand \- pseudo random number generation
.SH SYNOPSIS
.EX
include "rand.m";
rand = load Rand Rand->PATH;

init:    fn(seed: int);
rand:    fn(modulus: int): int;
bigrand: fn(modulus: big): big;
.EE
.SH DESCRIPTION
.B Init
initialises the pseudo-random number generator
with
.IR seed ;
subsequent calls to 
.B rand
and
.B bigrand
return a pseudo-random sequence of integers
or bigs respectively, between 0 and
.IR modulus \-1.
.I Modulus
should be a non-negative integer;
for
.BR bigrand ,
it should be less than 2^53.
.SH SOURCE
.B /appl/lib/rand.b
.SH SEE ALSO
.IR security-random (2)
.SH BUGS
The quality of the algorithm currently used is questionable.