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

[Douglas Gregor]

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)

> 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>_______________________________________________
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> 
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