https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119745
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Patrick Palka <[email protected]>: https://gcc.gnu.org/g:ae37ade22ecf4e4ca2911d6628f8bec20c3d6422 commit r16-7472-gae37ade22ecf4e4ca2911d6628f8bec20c3d6422 Author: Patrick Palka <[email protected]> Date: Wed Feb 11 21:35:35 2026 -0500 c++: relax ref-qual overloading rules for C++20 [PR98939] As explained in one of Tomasz's library papers P2438R2[1], C++20 allows ref-qualified member overloads to coexist with non-ref-qualified ones, but at the time of writing no compiler supported that. This patch implements this C++20 relaxation so that we can in turn implement P2438R2 as originally intended -- without needing to change the signature of the main string::substr overload. [1]: https://wg21.link/P2438R2#_modifying_existing_const_overload PR c++/98939 PR libstdc++/119745 gcc/cp/ChangeLog: * class.cc (object_parms_correspond): Allow differing FUNCTION_REF_QUALIFIED in C++20. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/ref-qual5.C: Expect no diagnostics in C++20. Reviewed-by: Jason Merrill <[email protected]>
