[Bug c++/51675] [C++11][4.7 Regression] Cannot create constexpr unions

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51675

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-02 
17:53:32 UTC ---
Author: jason
Date: Mon Jan  2 17:53:28 2012
New Revision: 182810

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182810
Log:
    DR 1359
    PR c++/51675
    * method.c (walk_field_subobs): Don't check for uninitialized
    fields in a union.
    (synthesized_method_walk): Check here.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-union2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/method.c
    trunk/gcc/testsuite/ChangeLog