Add check_and_adjust_index(), and replace most index checks with it.

This commit adds a check_and_adjust_index(npy_intp *index, npy_intp max, int axis) function
which checks index against max, setting an IndexError and returning -1 if it's not valid,
and otherwise adjusting index in-place to handle Python's negative indexing, and returning 0.

It also changes most places in the code where indexes were being checked and adjusted with a
call to this function.

0 files changed, 0 insertions, 0 deletions