http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55280
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-11-12 09:16:39 UTC --- As Andrew said, this is not a bug, see http://en.wikipedia.org/wiki/Most_vexing_parse You can force it to be parsed as a variable declaration with A a((B()))