[Bug c++/100977] [C++23] Implement C++ Identifier Syntax using Unicode Standard Annex 31

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100977

--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:7abcc9ca20d4e17deabb308b5f483aaccc3dc02c

commit r12-5597-g7abcc9ca20d4e17deabb308b5f483aaccc3dc02c
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Nov 30 09:50:52 2021 +0100

    libcpp: Enable P1949R7 for C++11 and up as it was a DR [PR100977]

    Jonathan mentioned on IRC that:
    "Accept P1949R7 (C++ Identifier Syntax using Unicode Standard Annex 31) as
    a Defect Report and apply the changes therein to the C++ working paper."
    while I've actually implemented it only for -std={gnu,c}++{23,2b}.
    As the C++98 rules were significantly different, I'm not trying to change
    anything for C++98.

    2021-11-30  Jakub Jelinek  <jakub@redhat.com>

            PR c++/100977
            * init.c (lang_defaults): Enable cxx23_identifiers for
            -std={gnu,c}++{11,14,17,20} too.

            * c-c++-common/cpp/ucnid-2011-1-utf8.c: Expect errors in C++.
            * c-c++-common/cpp/ucnid-2011-1.c: Likewise.
            * g++.dg/cpp/ucnid-4-utf8.C: Add missing space to dg-options.
            * g++.dg/cpp23/normalize3.C: Enable for c++11 rather than just
c++23.
            * g++.dg/cpp23/normalize4.C: Likewise.
            * g++.dg/cpp23/normalize5.C: Likewise.
            * g++.dg/cpp23/normalize7.C: Expect errors rather than just
warnings
            for c++11 and up rather than just c++23.
            * g++.dg/cpp23/ucnid-2-utf8.C: Expect errors even for c++11 ..
c++20.