https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61507
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed| |2014-06-14 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Cong Hou from comment #0) > As the type is explicitly specified, why GCC would like to "deduce" it? Probably because with a variadic template there could be additional arguments that haven't been explicitly specified and so need to be deduced. However, in this case the number of function arguments should tell the compiler the pack only contains one type, and therefore nothing more needs to be deduced.