https://issues.dlang.org/show_bug.cgi?id=23999
mhh <maxha...@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |maxha...@gmail.com --- Comment #12 from mhh <maxha...@gmail.com> --- Why is this impossible to express? You can write a new rule to match it and then mark it illegal if nothing else. (That and the grammar is not the whole). I think it's worth banning this, C does for example. --