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

[Pétur Runólfsson]

> 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?

> 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).

Petur