A Super Tiny Random Number Generator

A Super Tiny Random Number Generator(blog.demofox.org)

5 points by rinesh 3 years ago | 6 comments

IcePic 3 years ago |

I used this small code snippet to produce 1M ints into a file and threw dieharder on the file, and while one run said one test was WEAK, the second run (on another machine) said the output PASSED all tests, so indeed it seems to be a decent PRNG, as far as small testing can tell.

Quite interesting for such a small subroutine.

valrix 3 years ago | |

The code snippet seems incomplete though. Seed is set, but is never used during the generation. I must admit I'm not all too familiar with C, but it doesn't seem to make much sense, unless there is something going on under the hood that doesn't stand out?

wizofaus 3 years ago | | |

It's used in GenerateRandomBit? (It's a global variable, almost certainly a bad idea for a general purpose random generator, though it'd probably be fine if it were _Thread_local)