76 lines · c
1// RUN: %clang_cc1 -verify -Wno-strict-prototypes -fsyntax-only %s2 3static void (*fp0)(void) __attribute__((noreturn));4 5void fatal(void);6 7static void __attribute__((noreturn)) f0(void) {8 fatal();9} // expected-warning {{function declared 'noreturn' should not return}}10 11// On K&R12int f1() __attribute__((noreturn));13 14int g0 __attribute__((noreturn)); // expected-warning {{'noreturn' only applies to function types; type here is 'int'}}15 16int f2(void) __attribute__((noreturn(1, 2))); // expected-error {{'noreturn' attribute takes no arguments}}17 18void f3(void) __attribute__((noreturn));19void f3(void) {20 return; // expected-warning {{function 'f3' declared 'noreturn' should not return}}21}22 23#pragma clang diagnostic error "-Winvalid-noreturn"24 25void f4(void) __attribute__((noreturn));26void f4(void) {27 return; // expected-error {{function 'f4' declared 'noreturn' should not return}}28}29 30// PR468531extern void f5 (unsigned long) __attribute__ ((__noreturn__));32 33void34f5 (unsigned long size)35{36 37}38 39// PR246140__attribute__((noreturn)) void f(__attribute__((noreturn)) void (*x)(void)) {41 x();42}43 44typedef void (*Fun)(void) __attribute__ ((noreturn(2))); // expected-error {{'noreturn' attribute takes no arguments}}45 46 47typedef void fn_t(void);48 49fn_t *fp __attribute__((noreturn));50void __attribute__((noreturn)) f6(int i) {51 fp();52}53 54fn_t *fps[4] __attribute__((noreturn));55void __attribute__((noreturn)) f7(int i) {56 fps[i]();57}58 59extern fn_t *ifps[] __attribute__((noreturn));60void __attribute__((noreturn)) f8(int i) {61 ifps[i]();62}63 64void __attribute__((noreturn)) f9(int n) {65 extern int g9(int, fn_t **);66 fn_t *fp[n] __attribute__((noreturn));67 int i = g9(n, fp);68 fp[i]();69}70 71typedef fn_t *fptrs_t[4];72fptrs_t ps __attribute__((noreturn));73void __attribute__((noreturn)) f10(int i) {74 ps[i]();75}76