ae6ebd3af5
The attrubite is applicable to functions and variables and changes the linkage of the subject to internal. This is the same functionality as C-style "static", but applicable to class methods; and the same as anonymouns namespaces, but can apply to individual methods of a class. Following the proposal in http://lists.llvm.org/pipermail/cfe-dev/2015-October/045580.html llvm-svn: 252648
48 lines
2.0 KiB
C++
48 lines
2.0 KiB
C++
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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int f() __attribute__((internal_linkage));
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class A;
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class __attribute__((internal_linkage)) A {
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public:
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int x __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
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static int y __attribute__((internal_linkage));
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void f1() __attribute__((internal_linkage));
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void f2() __attribute__((internal_linkage)) {}
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static void f3() __attribute__((internal_linkage)) {}
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void f4(); // expected-note{{previous definition is here}}
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static int zz; // expected-note{{previous definition is here}}
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A() __attribute__((internal_linkage)) {}
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~A() __attribute__((internal_linkage)) {}
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A& operator=(const A&) __attribute__((internal_linkage)) { return *this; }
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struct {
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int z __attribute__((internal_linkage)); // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
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};
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};
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__attribute__((internal_linkage)) void A::f4() {} // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'f4'}}
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__attribute__((internal_linkage)) int A::zz; // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'zz'}}
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namespace Z __attribute__((internal_linkage)) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
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}
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__attribute__((internal_linkage("foo"))) int g() {} // expected-error{{'internal_linkage' attribute takes no arguments}}
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[[clang::internal_linkage]] int h() {}
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enum struct __attribute__((internal_linkage)) E { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
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a = 1,
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b = 2
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};
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int A::y;
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void A::f1() {
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}
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void g(int a [[clang::internal_linkage]]) { // expected-warning{{'internal_linkage' attribute only applies to variables, functions and classes}}
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int x [[clang::internal_linkage]]; // expected-warning{{'internal_linkage' attribute on a non-static local variable is ignored}}
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static int y [[clang::internal_linkage]];
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}
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