#### 7.3.6 `_gfortran_set_max_subrecord_length` — Set subrecord length

Description:
  `_gfortran_set_max_subrecord_length` set the maximum length for a subrecord. This option only makes sense for testing and debugging of unformatted I/O.
Syntax:
  `void _gfortran_set_max_subrecord_length (int val)`
Arguments:

  val | the maximum length for a subrecord; the maximum permitted value is 2147483639, which is also the default.

Example:

                int main (int argc, char *argv[])
                {
                  /* Initialize libgfortran.  */
                  _gfortran_set_args (argc, argv);
                  _gfortran_set_max_subrecord_length (8);
                  return 0;
                }