[Bug c++/51316] alignof doesn't work with arrays of unknown bound

[tsoae at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51316

--- Comment #2 from Nikolka <tsoae at mail dot ru> 2011-11-27 08:37:37 UTC ---
> Note that this usage is not valid in C1X.

Could you explain?