abergeron/compyte — comment on commit 6dd11f057f9508821f3b7a463ccd8c49dd1ac9c0
File: ndarray/compyte_buffer_cuda.c line 130
By abergeron:

It is used by the FAIL() macro.

Also it is really there to provide a way to return an error. If there was no possible errors, then it would still be normal since it is part of the interface.