RAND

Section: Compatibility Functions (3C)
Updated: September 29, 1985
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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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO

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