winapi - What's the difference between struct __stat64 and struct _stati64 on WIN32? -


i'm working on code needs run on every version of windows since win2000 , needs work wide file paths.

i need call variant of stat file length. file may larger 4gb.

here's relevant section msdn visual studio .net 2003[1] documentation:

  int _stat(    const char *path,    struct _stat *buffer  ); int _stat64(    const char *path,    struct __stat64 *buffer  ); int _stati64(    const char *path,    struct _stati64 *buffer  ); int _wstat(    const wchar_t *path,    struct _stat *buffer  ); int _wstat64(    const wchar_t *path,    struct __stat64 *buffer  ); int _wstati64(    const wchar_t *path,    struct _stati64 *buffer  );

[1] http://msdn.microsoft.com/en-us/library/14h5k7ff(v=vs.71).aspx

i can't figure out difference between __stat64 structure , _stati64 structure. know want use _wstat64 or _wstati64 msdn silent on better.

any suggestions?

i'm not 100% sure, seems like:

  • stat: 32-bit timestamp, 32-bit filesize
  • stat64 : 64-bit timestamp, 32-bit filesize
  • stati64: 64-bit timestamp, 64-bit filesize

so need wstati64.

this following paragraphs on msdn:

the date stamp on file can represented if later midnight, january 1, 1970, , before 19:14:07 january 18, 2038, utc unless use _stat64 or _wstat64, in case date can represented till 23:59:59, december 31, 3000, utc.

and

st_size size of file in bytes; 64-bit integer _stati64 , _wstati64


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