https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63662
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |---
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I bet you need -std=c++1y . And also this feature is not fully there for GCC
4.9.
