http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59056
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |accepts-invalid Status|UNCONFIRMED |NEW Last reconfirmed| |2013-11-13 Summary|enable_if turns a |ambiguous call to function |non-ambiguous template into |templates overloads not |an ambiguous one |diagnosed Ever confirmed|0 |1 --- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- Thanks, Richard. So the original testcase is correctly rejected as ambiguous, but G++ has an accepts-invalid bug for the code in comment 2.