voidnoret(void)__attribute__((noreturn));intfoo(int,char**);char*a, *b;int d;intmain(int argc,char**argv){registerint c;
d =1;while((c =foo(argc, argv)) != -1)switch(c) {case's':case'c':case'f':
a = b;break;case'v':
d =1;break;case'V':
d =0;break;}noret();return0;}