[Numpy-discussion] Best way to compare two implementations of the same numpy function ?

Hi, I am finalizing my patch to SVN numpy to improve the clip function. I managed to modify the code so that the generated C sources are generated through the genapi system in numpy/core, etc.... and it compiles fine. The only problem I have left is "where" to expose the function to numpy ? I would like to have a new function to be able to test against the old version (I have a few tens of tests to compare results between current numpy clip and my function), but I am not sure how to do it so it can be commited as a patch to numpy SVN (if the patch is found acceptable by numpy developers, of cours), cheers, David