bell | fatal_error | get_fatal_exit_code | set_fatal_exit_code |
void bell(FILE *fp);Send the bell character '\007' to a file.
void fatal_error(char *message);This routine should be called if something terrible happens. The message is printed to stdout and to stderr, and the process exits with the fatal_exit_code (default 1).
int get_fatal_exit_code();This function returns the exit code that will be used in case fatal_error() is called.
void set_fatal_exit_code(int exit_code);This routine changes the exit code that will be used in case fatal_error() is called. The default value is 1.