Talk:Algorithm Implementation/Sorting/Heapsort

In the java inplace heapsort implementation arraySwap(int[], int, int) is not defined.

http://www.cs.mu.oz.au/aia/HeapSort.html

The C++ version on this page isn't really implementing heapsort, more just using it....

Numerical Recipes code is not redistributable, no matter if you change it, so having the C code based on it could be problematic.