llvm-project/clang/test/SemaCXX/internal_linkage.cpp

48 lines
2.0 KiB
C++

// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
int f() __attribute__((internal_linkage));
class A;
class __attribute__((internal_linkage)) A {
public:
int x __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
static int y __attribute__((internal_linkage));
void f1() __attribute__((internal_linkage));
void f2() __attribute__((internal_linkage)) {}
static void f3() __attribute__((internal_linkage)) {}
void f4(); // expected-note{{previous definition is here}}
static int zz; // expected-note{{previous definition is here}}
A() __attribute__((internal_linkage)) {}
~A() __attribute__((internal_linkage)) {}
A& operator=(const A&) __attribute__((internal_linkage)) { return *this; }
struct {
int z __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
};
};
__attribute__((internal_linkage)) void A::f4() {} // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'f4'}}
__attribute__((internal_linkage)) int A::zz; // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'zz'}}
namespace Z __attribute__((internal_linkage)) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
}
__attribute__((internal_linkage("foo"))) int g() {} // expected-error{{'internal_linkage' attribute takes no arguments}}
[[clang::internal_linkage]] int h() {}
enum struct __attribute__((internal_linkage)) E { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
a = 1,
b = 2
};
int A::y;
void A::f1() {
}
void g(int a [[clang::internal_linkage]]) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
int x [[clang::internal_linkage]]; // expected-warning{{'internal_linkage' attribute on a non-static local variable is ignored}}
static int y [[clang::internal_linkage]];
}