Re: Small problem in testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-[1-4].cc

[Paolo Carlini <pcarlini at unitus dot it>]

Pétur Runólfsson wrote:

> > Hummmm. However, for some reason the original testcase gave problems on 
> > 64 bit platforms, like x86-64:
> >
> > 11305-1.exe: 
> > /usr/src/aj/cvs/gcc/libstdc++-v3/testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-1.cc:38: 
> > void test01(): Assertion `n1 != (0xffffffffu)' failed.
> > FAIL: 27_io/basic_filebuf/overflow/wchar_t/11305-1.cc execution test
> >
> > Any idea why?
> >    
> One possible explanation is that the C library is failing to convert
> these characters. They are also used in some tests in
> 22_locale/codecvt, are there any failures there?
Doesn't seem so... I think the baset thing to do is restoring the proper 
sputc() arguments and then investigate on which 64 platforms, with which 
libc, the testcases fail.

> > We can try restoring only the sputc() argument of your original testcase 
> > and see what happens...
> >    
> Since wfilebuf::int_type is the same type as wint_t and
> wfilebuf::traits_type::eof() == WEOF the testcase should fail (if it
> doesn't, there is a bug somewhere else).
I agree.

Paolo.