3 #include <msvcrt/internal/file.h>
6 //#define SETFILEPOINTEREX_AVAILABLE
11 __int64 _lseeki64(int _fildes, __int64 _offset, int _whence)
13 #ifdef SETFILEPOINTEREX_AVAILABLE
14 LARGE_INTEGER new_pos;
16 offset.QuadPart = _offset;
18 // if (invalid_filehnd(_fildes)) {
19 // __set_errno ( EBADF );
22 if (SetFilePointerEx((HANDLE)filehnd(_fildes), offset, &new_pos, _whence)) {
24 //__set_errno ( EINVAL );
27 return new_pos.QuadPart;
30 //DWORD hi_pos = 0; // must equal 0 or -1 if supplied, -1 for negative 32 seek value
31 //lo_pos = SetFilePointer((HANDLE)filehnd(_fildes), _offset, &hi_pos, _whence);
32 //return((((__int64)hi_pos) << 32) + lo_pos);
35 offset.QuadPart = _offset;
37 offset.u.LowPart = SetFilePointer((HANDLE)filehnd(_fildes),
38 offset.u.LowPart, &offset.u.HighPart, _whence);
39 return ((((__int64)offset.u.HighPart) << 32) + offset.u.LowPart);
41 #endif /*SETFILEPOINTEREX_AVAILABLE*/