[Bug c++/47999] [C++0x] auto type deduction works incorrectly in a function template

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47999

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-08 15:14:02 UTC ---
Created attachment 23583
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23583
Fix

Here's a patch that fixes the bug and passes regression testing.  I don't plan
to put it in for 4.6.0 as I'm concerned about possible side-effects; I seem to
remember trying to do exactly this once before and it causing problems.  I'll
put it in for 4.7 once 4.6 branches, and then perhaps into 4.6.1.