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