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ns_rand.3aolserver
Langue: en
Version: 4.0 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
ns_rand - commandsSYNOPSIS
ns_rand ?max?DESCRIPTION
ns_rand generates a cryptographically-secure random number. If max is not specified, the random number is a floating-point value n such that 0.0 <= n < 1.0.
If max is specified, it must be a positive integer between 0 and 2147483647. The return value is an integer value such that 0 <= n <= (max - 1).
Internally ns_rand is implemented with the drand48(3) and lrand48(3) standard library functions. An internal random seed is generated the first time ns_rand is called after the server starts.
EXAMPLES
nscp> ns_rand
0.39938485692
nscp> ns_rand 10
7
SEE ALSO
nsd(1), info(n), drand48(3), lrand48(3)KEYWORDS
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