1 // RUN: %clang_cc1 %s -Eonly -verify
2 
3 #pragma GCC poison rindex
4 rindex(some_string, 'h');   // expected-error {{attempt to use a poisoned identifier}}
5 
6 #define BAR _Pragma ("GCC poison XYZW")  XYZW /*NO ERROR*/
7   XYZW      // ok
8 BAR
9   XYZW      // expected-error {{attempt to use a poisoned identifier}}
10 
11 // Pragma poison shouldn't warn from macro expansions defined before the token
12 // is poisoned.
13 
14 #define strrchr rindex2
15 #pragma GCC poison rindex2
16 
17 // Can poison multiple times.
18 #pragma GCC poison rindex2
19 
20 strrchr(some_string, 'h');   // ok.
21