[Bug libstdc++/104123] New: 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[Bug libstdc++/104123] New: 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123

            Bug ID: 104123
           Summary: 29_atomics/headers/stdatomic.h/c_compat.cc fails on
                    AIX
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dje at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc-ibm-aix*

/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/
c_compat.cc:95: error: 'size_t' was not declared in this scope; did you mean
'st
d::size_t'?
/tmp/GCC/powerpc-ibm-aix7.2.3.0/libstdc++-v3/include/stdatomic.h:35: error:
temp
late argument 1 is invalid

/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/
c_compat.cc:95: error: template argument 2 is invalid
/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/
c_compat.cc:96: error: 'ptrdiff_t' was not declared in this scope; did you mean 
'std::ptrdiff_t'?

/tmp/GCC/powerpc-ibm-aix7.2.3.0/libstdc++-v3/include/stdatomic.h:35: error:
temp
late argument 1 is invalid
/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/
c_compat.cc:96: error: template argument 2 is invalid


This probably is an issue that AIX 7.2 headers are not C++-safe.  This will be
fixed in AIX 7.3.

Does this testsuite failure need to be addressed in fixincludes or in the
stdatomic.h header?

[Bug libstdc++/104123] 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-01-19
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu.org
   Target Milestone|---                         |12.0

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to David Edelsohn from comment #0)
> This probably is an issue that AIX 7.2 headers are not C++-safe.  This will
> be fixed in AIX 7.3.

No, I think it's the opposite case. The headers are cleaner than glibc's.

> Does this testsuite failure need to be addressed in fixincludes or in the
> stdatomic.h header?

The stdatomic.h header.

[Bug libstdc++/104123] 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #1)
> > Does this testsuite failure need to be addressed in fixincludes or in the
> > stdatomic.h header?
> 
> The stdatomic.h header.

Actually, no, it's just a bug in the test.

[Bug libstdc++/104123] 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123

--- 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:f5c50748f361841c30d95c1743f040f2f8ec831c

commit r12-6750-gf5c50748f361841c30d95c1743f040f2f8ec831c
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Jan 19 17:39:00 2022 +0000

    libstdc++: Include <stddef.h> for size_t and ptrdiff_t [PR104123]

    libstdc++-v3/ChangeLog:

            PR libstdc++/104123
            * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Include
            <stddef.h>.

[Bug libstdc++/104123] 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123

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

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

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
That should fix it.