37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify %s
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// GCC will accept anything as the argument of weakref. Should we
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// check for an existing decl?
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static int a1() __attribute__((weakref ("foo")));
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static int a2() __attribute__((weakref, alias ("foo")));
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static int a3 __attribute__((weakref ("foo")));
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static int a4 __attribute__((weakref, alias ("foo")));
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// gcc rejects, clang accepts
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static int a5 __attribute__((alias ("foo"), weakref));
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// this is pointless, but accepted by gcc. We reject it.
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static int a6 __attribute__((weakref)); //expected-error {{weakref declaration of 'a6' must also have an alias attribute}}
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// gcc warns, clang rejects
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void f(void) {
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static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}}
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}
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// both gcc and clang reject
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class c {
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static int a __attribute__((weakref ("v2"))); // expected-error {{declaration of 'a' must be in a global context}}
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static int b() __attribute__((weakref ("f3"))); // expected-error {{declaration of 'b' must be in a global context}}
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};
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int a7() __attribute__((weakref ("f1"))); // expected-error {{weakref declaration must have internal linkage}}
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int a8 __attribute__((weakref ("v1"))); // expected-error {{weakref declaration must have internal linkage}}
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// gcc accepts this
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int a9 __attribute__((weakref)); // expected-error {{weakref declaration of 'a9' must also have an alias attribute}}
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static int a10();
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int a10() __attribute__((weakref ("foo")));
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static int v __attribute__((weakref(a1), alias("foo"))); // expected-error {{'weakref' attribute requires a string}}
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