JuliaLang/julia — pull request #7521 by dcjones (2014-07-04 19:42:27+00:00)
Title: Use memmove instead of memcpy in copy! Fixes #3937

People seemed on board in #3937

I got burned by this the other day with code that worked on OSX but broke in subtle ways on Linux because it was shifting values in an array using `copy!`.