http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50285
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED CC| |manu at gcc dot gnu.org Resolution| |INVALID --- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2011-10-10 12:00:07 UTC --- I don't get why this is WAITING, if you have suggestions on how to improve the diagnostic, please REOPEN. Otherwise this is not a bug. Clang prints something similar: /tmp/webcompile/_26316_0.cc:11:5: error: no viable overloaded '=' x = f(); ~ ^ ~~~ /tmp/webcompile/_26316_0.cc:3:6: note: candidate function not viable: no known conversion from 'X' to 'X &' for 1st argument X& operator=(X&); ^ 1 error generated.