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From "Scott (Yu) Zhong (JIRA)" <j...@apache.org>
Subject [jira] Created: (STDCXX-265) IBM z/OS native MVS roguewave locale limitation
Date Tue, 01 Aug 2006 20:06:15 GMT
IBM z/OS native MVS roguewave locale limitation
-----------------------------------------------

                 Key: STDCXX-265
                 URL: http://issues.apache.org/jira/browse/STDCXX-265
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 22. Localization
         Environment: z/OS 1.6,  DASD 3390-3 Emulation
            Reporter: Scott (Yu) Zhong


Native MVS has filename limitation of 8 characters and does not support stat function.

examples of where stat function is being used is:

facet.cpp:103
---------------------------------------------------------------------------------------
static
void* __rw_mmap (const char* fname, _RWSTD_SIZE_T *size)
{
    _RWSTD_ASSERT (0 != fname);
    _RWSTD_ASSERT (0 != size);

#if !defined (_MSC_VER)
    struct stat sb;
    if (stat (fname, &sb) == -1)
#else
    struct _stat sb;
    if (_stat (fname, &sb) == -1)
#endif
        return 0;

    *size = sb.st_size;

#if !defined(_MSC_VER)
    const int fd = open (fname, O_RDONLY);

    if (-1 == fd)
        return 0;
---------------------------------------------------------------------------------------

A quick search in the stdlib source found that util/path.cpp, setlocale.cpp, and locale_core.cpp
uses stat function. The best alternative I found to stat on native MVS is to use either open/fopen
stream as a parameter to fstat function.

The 8 character max filename limitation impedes roguewave's locale to function.  This is because
some roguewave's locale database file names are longer than 8 character long: LC_COLLATE,
LC_MONETARY, LC_NUMERIC, LC_MESSAGES.

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