[Bug libstdc++/31836] [4.3 Regression] FAIL: 27_io/basic_istream/extractors_arithmetic/char/12.cc execution test

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #13 from dave at hiauly1 dot hia dot nrc dot ca  2007-05-06 23:07 -------
Subject: Re:  [4.3 Regression] FAIL:
27_io/basic_istream/extractors_arithmetic/char/12.cc execution test

> ------- Comment #8 from pcarlini at suse dot de  2007-05-06 10:16 -------
> (In reply to comment #6)
> > Unmodified, 12.cc fails here:
> > 
> > Breakpoint 1, bool test12_aux<short>(bool) (integer_type=true)
> 
> Nothing changed in the library code for integers, lately, and, moreover, as far
> as I can see, the test started failing exactly around 2007-04-06, when I
> changed that code involved only with floats. Moreover, for integers, there is
> nothing target-specific in the library, and the other targets (hppa-linux
> included) are fine. I'm going to commit my changes, which are needed, anyway,
> but, missing additional info, I cannot do more, I have absolutely no clues.
> Maybe it's just a miscompilation, you should try to compile both library and
> testcase at lower optimization level, as a first check.

Looking at the testresults, 123629 was ok and 123662 has the failure.
There's only one libstdc++ change in this interval:

        PR libstdc++/31117
        * config/locale/gnu/c_locale.cc (__convert_to_v): Do not use errno,
        just check that the value is finite.
        * config/locale/generic/c_locale.cc (__convert_to_v): Likewise.

Other than that, there's just r123630.

Dave


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31836