http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50545
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |SUSPENDED
Last reconfirmed| |2011-10-13
CC| |jason at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-13
22:02:12 UTC ---
int{ declval<T>() } is an example of an "instantiation-dependent" expression
that is neither type-dependent (its type is int) nor value-dependent (because
it's not a constant-expression), so G++ just resolves its decltype to int.
This isn't what we want, but what exactly we do want is an open issue:
http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1172
