Defined in header <cstdio>
Sets the file position indicator and the multibyte parsing state (if any) for the C file stream
stream according to the value pointed to by
Besides establishing new parse state and position, a call to this function undoes the effects of std::ungetc and clears the end-of-file state, if it is set.
If a read or write error occurs, the error indicator (std::ferror)for the stream is set.
|stream||-||file stream to modify|
|pos||-||pointer to a fpos_t object obtained from std::fgetpos called on a stream associated with the same file|
 Return value
0 upon success, nonzero value otherwise. Also, sets errno on failure.
 See also
| gets the file position indicator |
| returns the current file position indicator |
| moves the file position indicator to a specific location in a file |
C documentation for fsetpos