[Bug c++/92786] [c++11] static constexpr member link error

[xavierb at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92786

--- Comment #1 from Xavier B <xavierb at gmail dot com> ---
additional info:
 - getting the array out of the struct works, 
 - using 'namespace' instead of 'struct' also works fine.