https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82716
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Oct 25 13:55:56 2017 New Revision: 254077 URL: https://gcc.gnu.org/viewcvs?rev=254077&root=gcc&view=rev Log: PR libstdc++/82716 avoid stupid -Wmismatched-tags warnings PR libstdc++/82716 * include/std/array (tuple_size, tuple_element): Change class-key from class to struct, to avoid annoying Clang warnings. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/std/array