[cfe-dev] Libc++ Windows Semi-analyzed test results

[Ruben Van Boxem]

2011/9/28 Douglas Gregor <dgregor at apple.com>

>
> On Sep 28, 2011, at 8:48 AM, Howard Hinnant wrote:
>
> >
> > On Sep 28, 2011, at 10:56 AM, Ruben Van Boxem wrote:
> >
> >> Hi,
> >>
> >> Attached is a file describing in detail what libc++ tests failed in my
> test run and why (if it could be easily deduced from comparing Clang/GCC
> output or from the helpful Clang error messages). I used a slightly modified
> testit, so that GCC (which doesn't use default a.out on Windows) could also
> run the tests. That patch could use some work, I'll keep it local for now.
> >>
> >> The good news: a lot of these have trivial fixes, and the fault lies in
> the tests themselves (size of wchar_t, locale names, different number output
> format...).
> >> The bad news: Making this document sucked, and I'm never doing it again.
> >
> > Thanks for your work on this.
> >
> >>
> >> If in any way possible, thid could have a place in the libc++ source
> tree. It would make finding outstanding test failures and their reasons
> easy. Perhaps other platforms could then also keep track of failures. If
> not, I'll create a general bug report for libc++ and attach this document. I
> of course plan to keep this updated once fixes are applied.
> >
> > There's a link off this page:
> >
> > http://libcxx.llvm.org/
> >
> > to:
> >
> > http://libcxx.llvm.org/results.Windows.html
> >
> >>
> >> A small summarizing note:
> >> - thread needs attention, probably most failures are due to winpthreads.
> >> - io (actually most kinds of streams) needs attention, failures pops up
> everywhere.
> >> - lots of regex failures. Not good.
> >> - numerics has trouble with math functions. Perhaps a format issue.
> >> - stdint.h and uchar.h issues are being dealt with.
> >>
> >> Re the last point: How does Clang handle __cplusplus and C++11?
> >
> > #include <iostream>
> >
> > int main()
> > {
> >    std::cout << __cplusplus << '\n';
> > }
> >
> > Without -std=c++0x:
> >
> > 1
>
> With -std=c++98:
>
> 199711
>
> (The definition of __cplusplus in the default gnu98 mode is is an old
> G++'ism Clang emulates)
>

It's not an old G++'ism. it's only recently been fixed and is only for GCC
4.7+: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=1773

That's kind of why I asked. This is very good news. Clang has just become
even more awesome :)

Ruben

>
> > With -std=c++0x:
> >
> > 201103
> >
> > Howard
> >
> >>
> >> I'll be using this as a basis to further fix Windows issues, but I'll
> have less time from now on. It is a nice baseline status of libc++ on
> Windows. Help is always appreciated ;-)
> >>
> >> Ruben
> >> <results.Windows>_______________________________________________
> >> cfe-dev mailing list
> >> cfe-dev at cs.uiuc.edu
> >> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
> >
> > _______________________________________________
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>
>
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