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

[classixretrox at gmail dot com]

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

--- Comment #1 from RétroX <classixretrox at gmail dot com> 2011-12-24 18:24:45 
UTC ---
More information: initializing in the constructor doesn't work, either.

union foo
{
    int x;
    short y;

    constexpr foo() : x(0) { }
};

Also does not compile.