[Bug c++/49356] [C++0x] decltype fails with recursive template function

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49356

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |froydnj at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org
         Resolution|                            |INVALID

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-15 17:05:38 UTC ---
The problem here is that t(f) is an rvalue, so it can't bind to the non-const
T& parameter in the recursive call.

Nathan has a patch in the works that should produce more helpful diagnostics
for this sort of situation.