https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90389
--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:86700d114498ef6ed1f14b54732ba62c9f9504d4 commit r13-9467-g86700d114498ef6ed1f14b54732ba62c9f9504d4 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Dec 17 17:38:43 2024 +0000 libstdc++: Fix std::deque::emplace calling wrong _M_insert_aux [PR90389] We have several overloads of std::deque::_M_insert_aux, one of which is variadic and called by std::deque::emplace. With a suitable set of arguments to emplace, it's possible for one of the non-variadic _M_insert_aux overloads to be selected by overload resolution, making emplace ill-formed. Rename the variadic _M_insert_aux to _M_emplace_aux so that calls to emplace never select an _M_insert_aux overload. Also add an inline _M_insert_aux for the const lvalue overload that is called from insert(const_iterator, const value_type&). libstdc++-v3/ChangeLog: PR libstdc++/90389 * include/bits/deque.tcc (_M_insert_aux): Rename variadic overload to _M_emplace_aux. * include/bits/stl_deque.h (_M_insert_aux): Define inline. (_M_emplace_aux): Declare. * testsuite/23_containers/deque/modifiers/emplace/90389.cc: New test. (cherry picked from commit 5f44b1776e748a7528020557036740905a11b1df)
