GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v6 |
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rand(3) |
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rand, srand random number generator (seed in r0)
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jsr |
pc,srand |
/to initialize jsr |
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pc,rand |
/to get a random number |
srand(seed)
int seed;
rand( )
uses a multiplicative congruential random number generator
to return successive pseudo-random numbers (in r0) in the
range from 0 to 2 15 1. The
generator is reinitialized by calling with 1 as argument (in
r0). It can be set to a random starting point by calling
with whatever you like as argument, for example the
low-order word of the time. The low-order bits are not very
random.
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rand(3) | |