[Bug libstdc++/108015] New: [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[Bug libstdc++/108015] New: [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

            Bug ID: 108015
           Summary: [13 Regression]
                    17_intro/headers/c++2011/stdc++_multiple_inclusion.cc
                    failure on i686-linux
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

I'm seeing
FAIL: 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc (test for excess
errors)
Excess errors:
/home/jakub/src/gcc/obj45/i686-pc-linux-gnu/libstdc++-v3/include/chrono:2436:
warning: missing terminating ' character

This is about
            && (ratio_greater_equal_v<_Period, ratio<1, 4'000'000'000>>
line, which is surely in a section guarded with
#if __cplusplus >= 202002L
...
#endif
This boils down to:
#if __cplusplus >= 202002L
int a = 4'000'000'000;
#endif
int b = 42;
which also warns when preprocessed or compiled with -std=c++11, the
preprocessor
tokenizes even skipped tokens.

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
   Target Milestone|---                         |13.0

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Funny I was just looking at the preprocessor PR about tokenizing even inside
`#if 0` yesterday too.

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2022-12-08
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu.org
     Ever confirmed|0                           |1

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Warning about this is stupid. We tokenized it successfully, complaining that we
couldn't is unhelpful. Clang and EDG do not warn.

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:d61c0357ebc771166d5d48743f80aa339b4183dc

commit r13-4574-gd61c0357ebc771166d5d48743f80aa339b4183dc
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Dec 8 11:55:31 2022 +0000

    libstdc++: Remove digit separators [PR108015]

    These are not valid in C++11 and cause a warning when preprocessing,
    even though they're inside a skipped group.

    chrono:2436: warning: missing terminating ' character

    libstdc++-v3/ChangeLog:

            PR libstdc++/108015
            * include/std/chrono (hh_mm_ss): Remove digit separators.

[Bug libstdc++/108015] [13 Regression] 17_intro/headers/c++2011/stdc++_multiple_inclusion.cc failure on i686-linux

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108015

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Should be fixed now.