https://issues.dlang.org/show_bug.cgi?id=23441
--- Comment #3 from ryuukk_ <ryuukk....@gmail.com> --- Oops i copied the wrong code above, it's not a struct you are right Here is the source: https://github.com/Immediate-Mode-UI/Nuklear/blob/6e80e2a646f35be4afc157a932f2936392ec8f74/src/nuklear_utf8.c I now remember, i sent a PR a while ago to fix it: https://github.com/Immediate-Mode-UI/Nuklear/pull/467 --