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Full Discussion: Timeout period
Top Forums UNIX for Dummies Questions & Answers Timeout period Post 5432 by DPAI on Tuesday 14th of August 2001 07:07:29 PM
Old 08-14-2001
Ober,
Can u elaborate on this
 

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rand(3UCB)					     SunOS/BSD Compatibility Library Functions						rand(3UCB)

NAME
rand, srand - simple random number generator SYNOPSIS
/usr/ucb/cc [ flag ... ] file ... int rand(); int srand(seed) unsigned seed; DESCRIPTION
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. srand() can be called at any time to reset the random-number generator to a random starting point. The generator is initially seeded with a value of 1. SEE ALSO
cc(1B), drand48(3C), rand(3C), random(3C) NOTES
Use of these interfaces should be restricted to only applications written on BSD platforms. Use of these interfaces with any of the system libraries or in multi-thread applications is unsupported. The spectral properties of rand() leave a great deal to be desired. drand48(3C) and random(3C) provide much better, though more elaborate, random-number generators. The low bits of the numbers generated are not very random; use the middle bits. In particular the lowest bit alternates between 0 and 1. SunOS 5.11 30 Oct 2007 rand(3UCB)
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