Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Include:   <io.h>, <stdio.h>, <errno.h>
 
  Syntax:    long lseek( int handle, long offset, int origin );
             origin: SEEK_CUR, SEEK_END, SEEK_SET
 
  Returns:   the new position offset (in bytes) from the beginning of
             the file if successful, or -1L if not.
             errno: EBADF, EINVAL
 
  See also:  fseek, tell
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