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