clang/test/Sema/attr-visibility.c

   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 // rdar://problem/10753392
   8 void test3(void) __attribute__((visibility("protected"))); // expected-warning {{target does not support 'protected' visibility; using 'default'}}
   9
  10 struct __attribute__((visibility("hidden"))) test4; // expected-note {{previous attribute is here}}
  11 struct test4;
  12 struct __attribute__((visibility("default"))) test4; // expected-error {{visibility does not match previous declaration}}
  13
  14 struct test5;
  15 struct __attribute__((visibility("hidden"))) test5; // expected-note {{previous attribute is here}}
  16 struct __attribute__((visibility("default"))) test5; // expected-error {{visibility does not match previous declaration}}
  17
  18 void test6(void) __attribute__((visibility("default"), // expected-error {{visibility does not match previous declaration}}
  19                             visibility("hidden"))); // expected-note {{previous attribute is here}}
  20
  21 extern int test7 __attribute__((visibility("default"))); // expected-note {{previous attribute is here}}
  22 extern int test7 __attribute__((visibility("hidden"))); // expected-error {{visibility does not match previous declaration}}
  23
  24 typedef int __attribute__((visibility("default"))) bar; // expected-warning {{'visibility' attribute ignored}}
  25
  26 int x __attribute__((type_visibility("default"))); // expected-error {{'type_visibility' attribute only applies to types and namespaces}}
  27
  28 int PR17105 __attribute__((visibility(hidden))); // expected-error {{'visibility' attribute requires a string}}