1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify -std=c++11 %s 2 3 // GCC will accept anything as the argument of weakref. Should we 4 // check for an existing decl? 5 static int a1() __attribute__((weakref ("foo"))); 6 static int a2() __attribute__((weakref, alias ("foo"))); 7 8 static int a3 __attribute__((weakref ("foo"))); 9 static int a4 __attribute__((weakref, alias ("foo"))); 10 11 // gcc rejects, clang accepts 12 static int a5 __attribute__((alias ("foo"), weakref)); 13 14 // this is pointless, but accepted by gcc. We reject it. 15 static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}} 16 17 // gcc warns, clang rejects f(void)18void f(void) { 19 static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} 20 } 21 22 // both gcc and clang reject 23 class c { 24 static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}} 25 static int b() __attribute__((weakref ("f3"))); // expected-error {{declaration of 'b' must be in a global context}} 26 }; 27 int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}} 28 int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}} 29 30 // gcc accepts this 31 int a9 __attribute__((weakref)); // expected-error {{weakref declaration of 'a9' must also have an alias attribute}} 32 33 static int a10(); 34 int a10() __attribute__((weakref ("foo"))); 35 36 static int v __attribute__((weakref(a1), alias("foo"))); // expected-error {{'weakref' attribute requires a string}} 37 38 __attribute__((weakref ("foo"))) auto a11 = 1; // expected-error {{weakref declaration must have internal linkage}} 39