Whiteknight/parrot-linear-algebra — comment on commit 3cfd14d34eb5006188a4dad761aa17ca47d32678
File:  line 0
By Whiteknight:

Yeah, this one is row-major. Converting it to be alternatively column major would be pretty easy. Parrot's built-in iterator types use the set_integer VTABLE to say whether the iterator should be forwards or backwards. Using that same mechanism to set whether the iterator is forwards/backwards or row/column-major would be pretty easy