http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50025
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
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Target Milestone|--- |4.9.0
--- Comment #24 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to __vic from comment #23)
> Is it related bug?
Yes, the original C++11 rules required a temporary to be created there and the
reference member binds to that temporary (which then goes out of scope).
Your code works correctly with GCC 4.9
