xref: /llvm-project/clang/test/Sema/attr-visibility.c (revision 0f1c1be1968076d6f96f8a7bcc4a15cf195ecd97)
1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s
2 
3 void test0(void) __attribute__((visibility("default")));
4 void test1(void) __attribute__((visibility("hidden")));
5 void test2(void) __attribute__((visibility("internal")));
6 
7 void test3(void) __attribute__((visibility("protected"))); // expected-warning {{target does not support 'protected' visibility; using 'default'}}
8 
9 struct __attribute__((visibility("hidden"))) test4; // expected-note {{previous attribute is here}}
10 struct test4;
11 struct __attribute__((visibility("default"))) test4; // expected-error {{visibility does not match previous declaration}}
12 
13 struct test5;
14 struct __attribute__((visibility("hidden"))) test5; // expected-note {{previous attribute is here}}
15 struct __attribute__((visibility("default"))) test5; // expected-error {{visibility does not match previous declaration}}
16 
17 void test6(void) __attribute__((visibility("default"), // expected-error {{visibility does not match previous declaration}}
18                             visibility("hidden"))); // expected-note {{previous attribute is here}}
19 
20 extern int test7 __attribute__((visibility("default"))); // expected-note {{previous attribute is here}}
21 extern int test7 __attribute__((visibility("hidden"))); // expected-error {{visibility does not match previous declaration}}
22 
23 typedef int __attribute__((visibility("default"))) bar; // expected-warning {{'visibility' attribute ignored}}
24 
25 int x __attribute__((type_visibility("default"))); // expected-error {{'type_visibility' attribute only applies to types and namespaces}}
26 
27 int PR17105 __attribute__((visibility(hidden))); // expected-error {{'visibility' attribute requires a string}}
28