Réf. : Re: [LC++]Random numbers

David Filion filioda at videotron.com
Sat Sep 1 02:20:06 UTC 2001

If you know your going to be running on a Linux system, you could read from
You might also want to look at lrand48(). (I'm not sure if it exists in c++

Grzegorz Mazur <mazur at chemia.uj.edu.pl> on 2001-08-31 09:44:27

Veuillez répondre à tuxcpprogramming at lists.linux.org.au

Pour :    "Linux C++ Programming List" <tuxcpprogramming at lists.linux.org.au>
cc :   (ccc : David Filion/VSI/GVL)
Objet :   Re: [LC++]Random numbers

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On Fri, 31 Aug 2001, Mark Phillips wrote:

> Is the comment from Numerical Recipes in C based on older versions
> of rand()?  Ie is it that the first method above (of generating
> a number between 1 and 10) used to be preferable to the second
> method, but now with improved random number generators, the
> second method is just as good --- (and quicker!)??

It seems so. But I'd say that it really depends on the C library (I mean
the std C library) you use, and in case you are doing anything serious,
you should not rely on the quality of std C library, but use one of the
available high quality (pseudo) random generator implementations. BTW,
this way you can get one that have nice C++ interface. You may take a look
at blitz, but there are some other.


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