[Bug libstdc++/108200] New: std::format fails on AIX due to __float128 not being supported by std::to_chars

[Bug libstdc++/108200] New: std::format fails on AIX due to __float128 not being supported by std::to_chars

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108200

            Bug ID: 108200
           Summary: std::format fails on AIX due to __float128 not being
                    supported by std::to_chars
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc-ibm-aix*

FAIL: std/format/formatter/requirements.cc (test for excess errors)
Excess errors:
ld: 0711-317 ERROR: Undefined symbol: ._ZSt8to_charsPcS_g
ld: 0711-317 ERROR: Undefined symbol: ._ZSt8to_charsPcS_gSt12chars_formati
ld: 0711-317 ERROR: Undefined symbol: ._ZSt8to_charsPcS_gSt12chars_format
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
collect2: error: ld returned 8 exit status

UNRESOLVED: std/format/formatter/requirements.cc compilation failed to produce
executable

The __float128 format support should be disabled on AIX.

[Bug libstdc++/108200] std::format fails on AIX due to __float128 not being supported by std::to_chars

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108200

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-12-22
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
FAIL: std/format/formatter/requirements.cc (test for excess errors)
UNRESOLVED: std/format/formatter/requirements.cc compilation failed to produce
executable
FAIL: std/format/functions/format.cc (test for excess errors)
UNRESOLVED: std/format/functions/format.cc compilation failed to produce
executable
FAIL: std/format/functions/format_to_n.cc (test for excess errors)
UNRESOLVED: std/format/functions/format_to_n.cc compilation failed to produce
executable
FAIL: std/format/functions/size.cc (test for excess errors)
UNRESOLVED: std/format/functions/size.cc compilation failed to produce
executable
FAIL: std/format/functions/vformat_to.cc (test for excess errors)
UNRESOLVED: std/format/functions/vformat_to.cc compilation failed to produce
executable
FAIL: std/format/string.cc (test for excess errors)
UNRESOLVED: std/format/string.cc compilation failed to produce executable

[Bug libstdc++/108200] std::format fails on AIX due to __float128 not being supported by std::to_chars for -maix64 -mlong-double-128

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108200

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|std::format fails on AIX    |std::format fails on AIX
                   |due to __float128 not being |due to __float128 not being
                   |supported by std::to_chars  |supported by std::to_chars
                   |                            |for -maix64
                   |                            |-mlong-double-128

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is only for the -maix64 -mlong-double-128 multilib.

[Bug libstdc++/108200] std::format fails on AIX due to __float128 not being supported by std::to_chars for -maix64 -mlong-double-128

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108200

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And I've just added a few more at r13-4856-gf99b94865fa629

FAIL: 20_util/duration/io.cc (test for excess errors)
UNRESOLVED: 20_util/duration/io.cc compilation failed to produce executable
FAIL: std/time/clock/file/io.cc (test for excess errors)
UNRESOLVED: std/time/clock/file/io.cc compilation failed to produce executable
FAIL: std/time/clock/gps/io.cc (test for excess errors)
UNRESOLVED: std/time/clock/gps/io.cc compilation failed to produce executable
FAIL: std/time/clock/system/io.cc (test for excess errors)
UNRESOLVED: std/time/clock/system/io.cc compilation failed to produce
executable
FAIL: std/time/clock/tai/io.cc (test for excess errors)
UNRESOLVED: std/time/clock/tai/io.cc compilation failed to produce executable
FAIL: std/time/clock/utc/io.cc (test for excess errors)
UNRESOLVED: std/time/clock/utc/io.cc compilation failed to produce executable
FAIL: std/time/format.cc (test for excess errors)
UNRESOLVED: std/time/format.cc compilation failed to produce executable
FAIL: std/time/hh_mm_ss/io.cc (test for excess errors)
UNRESOLVED: std/time/hh_mm_ss/io.cc compilation failed to produce executable