1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 2 3 int f() __attribute__((internal_linkage)); 4 5 class A; 6 class __attribute__((internal_linkage)) A { 7 public: 8 int x __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}} 9 static int y __attribute__((internal_linkage)); 10 void f1() __attribute__((internal_linkage)); 11 void f2() __attribute__((internal_linkage)) {} 12 static void f3() __attribute__((internal_linkage)) {} 13 void f4(); // expected-note{{previous definition is here}} 14 static int zz; // expected-note{{previous definition is here}} 15 A() __attribute__((internal_linkage)) {} 16 ~A() __attribute__((internal_linkage)) {} 17 A& operator=(const A&) __attribute__((internal_linkage)) { return *this; } 18 struct { 19 int z __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}} 20 }; 21 }; 22 23 __attribute__((internal_linkage)) void A::f4() {} // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'f4'}} 24 25 __attribute__((internal_linkage)) int A::zz; // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'zz'}} 26 27 namespace Z __attribute__((internal_linkage)) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}} 28 } 29 30 __attribute__((internal_linkage("foo"))) int g() {} // expected-error{{'internal_linkage' attribute takes no arguments}} 31 32 [[clang::internal_linkage]] int h() {} 33 34 enum struct __attribute__((internal_linkage)) E { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}} 35 a = 1, 36 b = 2 37 }; 38 39 int A::y; 40 41 void A::f1() { 42 } 43 44 void g(int a [[clang::internal_linkage]]) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}} 45 int x [[clang::internal_linkage]]; // expected-warning{{'internal_linkage' attribute on a non-static local variable is ignored}} 46 static int y [[clang::internal_linkage]]; 47 } 48
