Mailinglist Archive: opensuse-bugs (10021 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=235395

           Summary: glibc wide character output functions don't work.
           Product: openSUSE 10.2
           Version: Final
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: Basesystem
        AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: zsu@xxxxxxxxxx
         QAContact: qa@xxxxxxx
                CC: mfabian@xxxxxxxxxx


Recently we just found that wide character output functions, such as fputws,
fputwc, wprintf, fwprintf, fprintf, etc. do not have correct behaviour.

Tried the following sample under zh_CN.UTF-8 locale:
(Following sample is utf-8 encoded.)

#include <stdio.h>
#include <wchar.h>

int main ()
{
    const wchar_t *str = L"大家好\n";
    FILE *fp = fopen ("utf.txt", "wb");

    if (fwide (fp, 1) != 1)  {
        printf ("fail.\n");
        return 0;
    }

    fputws(str, fp);
    fprintf (fp, "%ls\n", str);
    fputwc (0x4e00, fp);
    fclose (fp);
}

The expected behaviour of this piece of code is: UTF-8 chinese string
"大家好" should be written into file utf.txt twice. An unicode character
0x4e00 should be converted into utf-8 sequence and written into utf.txt.

But the actual result of fputws is just three question mark "???".
fprintf outputs nothing at all. fputwc wrote one question mark.


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