clang/test/SemaCXX/pragma-visibility.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 namespace test1 __attribute__((visibility("hidden"))) { // expected-note{{surrounding namespace with visibility attribute starts here}}
   4 #pragma GCC visibility pop // expected-error{{#pragma visibility pop with no matching #pragma visibility push}}
   5 }
   6
   7 // GCC 4.6 accepts this, but the "hidden" leaks past the namespace end.
   8 namespace test2 __attribute__((visibility("hidden"))) {
   9 #pragma GCC visibility push(protected) // expected-error{{#pragma visibility push with no matching #pragma visibility pop}}
  10 } // expected-note{{surrounding namespace with visibility attribute ends here}}
  11
  12 #pragma GCC visibility pop // expected-error{{#pragma visibility pop with no matching #pragma visibility push}}
  13
  14 struct A {
  15   #pragma GCC visibility push(protected)
  16   #pragma GCC visibility pop
  17 };
  18
  19 void f() {
  20   #pragma GCC visibility push(protected)
  21   #pragma GCC visibility pop
  22 }
  23
  24 namespace pr13662 {
  25 #pragma GCC visibility push(hidden)
  26   template<class T> class __attribute__((__visibility__("default"))) foo;
  27   class bar { template<class T> friend class foo; };
  28 #pragma GCC visibility pop
  29 }