// file: sig_dbg_1.cc//// isip include files//#include "Signal.h"#include "signal_constants.h"// method: set_debug_cc//// arguments: debug level//// return: logical_1 error status//// this function sets the debug level////logical_1 Signal::set_debug_cc(int_4 level_a) {  // set the level  //  debug_level_d = level_a;  // exit gracefully  //  return ISIP_TRUE;}