https://issues.dlang.org/show_bug.cgi?id=14592
Issue ID: 14592 Summary: [SPEC] Undocumented use of __U for mangling template constraints Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: major Priority: P1 Component: DMD Assignee: nob...@puremagic.com Reporter: ibuc...@gdcproject.org I've never come across it, so maybe it's just dead code in DMD. --