https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101960
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:0187e0d7360f327f88d8b2294668669306ae4630 commit r12-3022-g0187e0d7360f327f88d8b2294668669306ae4630 Author: Jonathan Wakely <jwak...@redhat.com> Date: Thu Aug 19 11:48:40 2021 +0100 libstdc++: Fix move construction of std::tuple with array elements [PR101960] An array member cannot be direct-initialized in a ctor-initializer-list, so use the base class' move constructor, which does the right thing for both arrays and non-arrays. This constructor could be defaulted, but that would make it trivial for some specializations, which would change the argument passing ABI. Do that for the versioned namespace only. Signed-off-by: Jonathan Wakely <jwak...@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/101960 * include/std/tuple (_Tuple_impl(_Tuple_impl&&)): Use base class' move constructor. Define as defaulted for versioned namespace. * testsuite/20_util/tuple/cons/101960.cc: New test.