https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115744
--- Comment #6 from GCC 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:20c63093db0f230ef49a298cdb0611f38e470203 commit r15-3049-g20c63093db0f230ef49a298cdb0611f38e470203 Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Aug 20 21:47:29 2024 +0100 libstdc++: Adjust testcase for constexpr placement new [PR115744] This test now fails in C++26 mode because the declaration in <new> is constexpr and the one in the test isn't. Add constexpr to the test. libstdc++-v3/ChangeLog: PR libstdc++/115744 * testsuite/18_support/headers/new/synopsis.cc [C++26]: Add constexpr to placement operator new and operator new[].