Seeks inside a stream.
Moves the position indicator of the stream `f'. Unlike the standard fseek()
function, this only supports forward movements relative to the current
position and in read-only streams, so don't use negative offsets. Note that
seeking is very slow when reading compressed files, and so should be
avoided unless you are sure that the file is not compressed. Example:
input_file = pack_fopen("data.bin", "r");
abort_on_error("Couldn't open binary data!");
/* Skip some useless header before reading data. */
Returns zero on success or a negative number on error, storing the error
code in `errno'.
The following projects include source code containing this keyword: