1 // RUN: %clang_cc1 %s -std=c11 -fsyntax-only -verify=compat -Wpre-c11-compat
2 // RUN: %clang_cc1 %s -std=c99 -fsyntax-only -verify=ext -pedantic
3 // RUN: %clang_cc1 %s -std=c11 -fsyntax-only -verify=good
4 // RUN: %clang_cc1 -x c++ %s -fsyntax-only -verify=ext -pedantic
5
6 // good-no-diagnostics
7
8 extern _Noreturn void exit(int); /* compat-warning {{'_Noreturn' is incompatible with C standards before C11}}
9 ext-warning {{'_Noreturn' is a C11 extension}}
10 */
11
func(void)12 void func(void) {
13 static _Thread_local int tl; /* compat-warning {{'_Thread_local' is incompatible with C standards before C11}}
14 ext-warning {{'_Thread_local' is a C11 extension}}
15 */
16 _Alignas(8) char c; /* compat-warning {{'_Alignas' is incompatible with C standards before C11}}
17 ext-warning {{'_Alignas' is a C11 extension}}
18 */
19 _Atomic int i1; /* compat-warning {{'_Atomic' is incompatible with C standards before C11}}
20 ext-warning {{'_Atomic' is a C11 extension}}
21 */
22 _Atomic(int) i2; /* compat-warning {{'_Atomic' is incompatible with C standards before C11}}
23 ext-warning {{'_Atomic' is a C11 extension}}
24 */
25
26 _Static_assert(1, ""); /* compat-warning {{'_Static_assert' is incompatible with C standards before C11}}
27 ext-warning {{'_Static_assert' is a C11 extension}}
28 */
29
30 (void)_Generic(1, int : 1); /* compat-warning {{'_Generic' is incompatible with C standards before C11}}
31 ext-warning {{'_Generic' is a C11 extension}}
32 */
33 (void)_Alignof(int); /* compat-warning {{'_Alignof' is incompatible with C standards before C11}}
34 ext-warning {{'_Alignof' is a C11 extension}}
35 */
36 }
37
38