https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102280
--- 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:e67917f5df9d84f5aed3513b3931a82870d25135 commit r12-3591-ge67917f5df9d84f5aed3513b3931a82870d25135 Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Sep 15 21:49:29 2021 +0100 libstdc++: Add missing constraint to std::span deduction guide [PR102280] Signed-off-by: Jonathan Wakely <jwak...@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/102280 * include/std/span (span(Range&&)): Add constraint to deduction guide.