Answer by jwenting for How to share computer code?

For my graduation paper I shared my code by printing it all out as a companion volume to the main research paper.
Mind this was pre-internet, and the paper (and code) was classified so very few people would ever read it.
I did put it all on floppy and included copies of that with the printed paper as well.

These days, you'd likely put it on a server somewhere where all those who have access to the paper can access the code, and nobody else.
Of course you will need to figure out who that will be. Most research papers are considered company secrets (or department secrets) and not for public distribution. Your code would fall under the same restrictions.
Just throwing it out there on github, google code, or source forge without prior permission from your employers/coordinators isn't going to make you many friends, in fact you could end up with a rather hefty claim for damages and/or prison time for doing so.