Free Code

This source code is released under a permissive license to save you time and effort. You can download it, modify it, claim you wrote it, include it in commercial projects, sell it, burn it, swear at it, or throw it out a window. Just don't ask me for any kind of support. Officially:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
AVL Trees in C Here's a free implementation of AVL trees in C. These are free for any use.

(last updated 04/03/2009)
CRC32 Calculation in C This little piece of code calculates the 32 bit CRC of a buffer. It is free for any use.

(last updated 04/03/2009)
Detecting the intersection of a circle and a line segment Here is the algorithm and C source code to determine if a circle and a line segment intersect. (Free for any use)

(last updated 04/03/2009)
Detecting the intersection of two convex polygons Here is the algorithm and some C source code to determine if two convex polygons intersect.  Also includes a function to determine if two line segments are intersecting. (Free for any use)

(last updated 04/03/2009)
Doubly Linked Lists in C

Here are some free linked lists for you. Doubly linked! These are free for any use.

(last updated 04/03/2009)
SHA1 Hash Implementation Here's a free implementation of the SHA1 hash algorithm. It is free for any use.

(last updated 04/03/2009)