[Bug c++/102617] [C++23] P2360R0 - Extend init-statement to allow alias-declaration

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102617

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:5469d58d6620195c6275d11b474d686f5921c3ba

commit r12-4716-g5469d58d6620195c6275d11b474d686f5921c3ba
Author: Marek Polacek <polacek@redhat.com>
Date:   Thu Oct 21 11:10:02 2021 -0400

    c++: P2360R0: Extend init-stmt to allow alias-decl [PR102617]

    The following patch implements C++23 P2360R0.  This proposal merely
    extends init-statement to contain alias-declaration.  init-statement
    is used in if/for/switch.  It also removes the unsightly duplication
    of code by calling cp_parser_init_statement twice.

            PR c++/102617

    gcc/cp/ChangeLog:

            * parser.c (cp_parser_for): Maybe call cp_parser_init_statement
            twice.  Warn about range-based for loops with initializer here.
            (cp_parser_init_statement): Don't duplicate code.  Allow
            alias-declaration in init-statement.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp23/init-stmt1.C: New test.
            * g++.dg/cpp23/init-stmt2.C: New test.