JuliaLang/julia — comment on commit 1d8f22fc7931698c65a1fef8d63b1993d5ffe97c
File:  line 0
By JeffBezanson:

Well, this is what it's called in a certain other system.

The macro change seems to mean just removing the definitions involving copy() from in_place_matrix_op?

And again I would rather have in_place_matrix_op as a higher-order function. Each call operates on a vector so the overhead shouldn't be too bad.