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From: morgan@ogicse.cse.ogi.edu (Clark O. Morgan)
Newsgroups: comp.unix.programmer,comp.sources.wanted
Subject: looking for uniformly distributed (0..1] random number generator
Message-ID: <16610@ogicse.ogi.edu>
Date: 28 Jan 91 23:00:13 GMT
Sender: morgan@ogicse.ogi.edu
Distribution: na
Organization: Oregon Graduate Institute (formerly OGC), Beaverton, OR
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Hello.  I'm currently using a Sequent Symmetry (3.17) executing
BSD4.2 :-) .  I need access to a uniformly distributed random number
generator over the range (0..1] .  The RNG should have a reasonably
long period.

I found a description of a Linear Congruential method that works fine
in theory, but suffers from unsigned long overflow in practice (unless,
of course, I implement the RNG is ASM :-( ).

Anybody have such a generator that's written in C (can't use Fortran,
our machine has no f77 compiler)?  Or have pointers to books/archives
that I should examine?

Thanks in advance.