[Bug libstdc++/100298] New: noexcept is missing for thread::hardware_concurrency clang refuses the code

[Bug libstdc++/100298] New: noexcept is missing for thread::hardware_concurrency clang refuses the code

[unlvsur at live dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100298

            Bug ID: 100298
           Summary: noexcept is missing for thread::hardware_concurrency
                    clang refuses the code
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: unlvsur at live dot com
  Target Milestone: ---

In file included from In file included from
/home/cqwrteur/myhome/libstdcxx_wasm_build/include/bits/atomic_futex.h:39:
In file included from
/home/cqwrteur/myhome/libstdcxx_wasm_build/include/mutex:47:
In file included from
/home/cqwrteur/myhome/libstdcxx_wasm_build/include/thread:43:
/home/cqwrteur/myhome/libstdcxx_wasm_build/include/bits/std_thread.h:273:31:
error: 'hardware_concurrency' is missing exception specification 'noexcept'
  inline unsigned int thread::hardware_concurrency() { return 0; }
                              ^
/home/cqwrteur/myhome/libstdcxx_wasm_build/include/bits/std_thread.h:196:5:
note: previous declaration is here
    hardware_concurrency() noexcept;
    ^
1 warning and 1 error generated.
1 warning generated.
2 warnings generated.
1 warning and 1 error generated.
4 warnings generated.
make[3]: *** [Makefile:648: future.lo] Error 1
5 warnings generated.
make[3]: *** [Makefile:648: futex.lo] Error 1

[Bug libstdc++/100298] [11/12 Regression] noexcept is missing for thread::hardware_concurrency clang refuses the code

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100298

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-04-28
            Summary|noexcept is missing for     |[11/12 Regression] noexcept
                   |thread::hardware_concurrenc |is missing for
                   |y clang refuses the code    |thread::hardware_concurrenc
                   |                            |y clang refuses the code
      Known to work|                            |10.3.0
      Known to fail|                            |11.1.0, 12.0
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

[Bug libstdc++/100298] [11/12 Regression] noexcept is missing for thread::hardware_concurrency clang refuses the code

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100298

--- Comment #1 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:5cc28000cfcc219fb4c45dbc5388ec05109049af

commit r12-215-g5cc28000cfcc219fb4c45dbc5388ec05109049af
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Apr 28 12:45:49 2021 +0100

    libstdc++: Add missing noexcept on std::thread member function [PR 100298]

    The new inline definition of std::thread::hardware_concurrency() for
    non-gthreads targets is missing the noexcept-specifier that is on the
    declaration.

    libstdc++-v3/ChangeLog:

            PR libstdc++/100298
            * include/bits/std_thread.h (thread::hardware_concurrency): Add
            missing noexcept to inline definition for non-gthreads targets.

[Bug libstdc++/100298] [11/12 Regression] noexcept is missing for thread::hardware_concurrency clang refuses the code

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100298

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:aae5106525d850c5f3ae8265374ead16c5e0a9b7

commit r11-8316-gaae5106525d850c5f3ae8265374ead16c5e0a9b7
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Apr 28 12:45:49 2021 +0100

    libstdc++: Add missing noexcept on std::thread member function [PR 100298]

    The new inline definition of std::thread::hardware_concurrency() for
    non-gthreads targets is missing the noexcept-specifier that is on the
    declaration.

    libstdc++-v3/ChangeLog:

            PR libstdc++/100298
            * include/bits/std_thread.h (thread::hardware_concurrency): Add
            missing noexcept to inline definition for non-gthreads targets.

    (cherry picked from commit 5cc28000cfcc219fb4c45dbc5388ec05109049af)

[Bug libstdc++/100298] [11/12 Regression] noexcept is missing for thread::hardware_concurrency clang refuses the code

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100298

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |11.2
         Resolution|---                         |FIXED

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 11.2