http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49663
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ice-on-valid-code | --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-07-06 19:02:57 UTC --- actually Comeau online rejects this so maybe it isn't valid and should have been rejected by previous GCCs line 23: error: no instance of constructor "dx::onc::onc" matches the argument list The argument types that you used are: (<unknown-type>) tonc() : onc(&grac::once<Derived>) {} ^ Clang ICEs on it http://llvm.org/bugs/show_bug.cgi?id=10219