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Minix/CD-ROM-2.0/MINIX/MANUALS/MAN3/RAND.3

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+.\"	@(#)rand.3c	6.2 (Berkeley) 9/29/85
+.\"
+.TH RAND 3 "September 29, 1985"
+.AT 3
+.SH NAME
+rand, srand \- random number generator
+.SH SYNOPSIS
+.nf
+.ft B
+#include <stdlib.h>
+
+void srand(unsigned \fIseed\fP)
+unsigned rand(void)
+.ft R
+.fi
+.SH DESCRIPTION
+.B Rand
+uses a multiplicative congruential
+random number generator with period
+.if t 2\u\s732\s0\d
+.if n 2**32
+to return successive pseudo-random
+numbers in the range from 0 to
+.BR RAND_MAX .
+.PP
+The generator is reinitialized by calling
+.B srand
+with 1 as argument.
+It can be set to a random starting point by calling
+.B srand
+with whatever you like as argument.
+.SH "SEE ALSO"
+.BR random (3).