catch
process(bool catch)
if (!catch) {
if (enterhist || (catch && intty && !whyles))
signal(SIGSEGV, catch);
signal(SIGABRT, catch);
sa.sa_handler = catch;
sigtest(int signum, int catch)
ASSX(ke.data == catch);
void catch(int);
(void)signal(SIGINT, catch);
void catch(int);
(void)signal(SIGINT, catch);
int catch, error = 0, error1 = 0;
catch = p->p_flag & P_SINTR;
if (catch != 0) {
catch = 0;
if (catch != 0)