https://issues.dlang.org/show_bug.cgi?id=21849
--- Comment #1 from Iain Buclaw <[email protected]> --- Reason is that column tracking just uses simple pointer subtraction. https://github.com/dlang/dmd/blob/db13c6c948b4724ad8235c7063feba1241f685b4/src/dmd/lexer.d#L2291 This works when a line only consists of byte characters. --
