https://issues.dlang.org/show_bug.cgi?id=24032
FeepingCreature <default_357-l...@yahoo.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |default_357-l...@yahoo.de --- Comment #1 from FeepingCreature <default_357-l...@yahoo.de> --- Yes, Q{} is defined in the grammar as a "token string" which must consist of valid D tokens, because it's meant to pass around fragments of source code. "0X" stopped being a valid token in DMD 2.084.0: https://dlang.org/changelog/2.084.0.html#deprecated_binary_literals --