The run-time library rand() function

[Brendan Cullen]

Hi,

Anybody got any idea what algorithm is used by the random number generator ?

Thanks,

Brendan

Have a look at the code. It's in the CRT\SRC subdirectory.

[Brendan Cullen]

Hi,

I don't have a CRT/SRC directory !!! What's the full path of yours ?

Brendan

[Troy T]

When you installed VC did you include all of the MFC source, the debug code, etc?? If not, you may want to go add those, then you will have the directory! :)

- Troy

[Jerry Coffin]

Glancing at the source code, it's a 32-bit linear-congruential generator with a multiplier of 214013 and an addend of 2531011. It returns only the top 16 bits generated.



The universe is a figment of its own imagination.

[Orion Mazzor]

There is a book that talks about random number generators that you might find interesting called Advanced C (Second Edition) from Osborne McGraw-Hill. ISBN 0-07-881348-4.

[Brendan Cullen]

Thanks Orion,

Brendan

[Brendan Cullen]

Thanks Jerry,

Brendan

[Brendan Cullen]

Thanks Troy,

Brendan