| // RUN: %clang_cc1 -std=gnu++17 -fsyntax-only -fms-compatibility -verify %s
|
|
|
| void f() {
|
| // GNU-style attributes are prohibited in this position.
|
| auto P = new int * __attribute__((vector_size(8))); // expected-error {{an attribute list cannot appear here}} \ |
| // expected-error {{invalid vector element type 'int *'}} |
| |
| // Ensure that MS type attribute keywords are still supported in this |
| // position. |
| auto P2 = new int * __sptr; // Ok |
| } |
| |
| void g(int a[static [[]] 5]); // expected-error {{static array size is a C99 feature, not permitted in C++}} |
| |
| namespace { |
| class B { |
| public: |
| virtual void test() {} |
| virtual void test2() {} |
| virtual void test3() {} |
| }; |
| |
| class D : public B { |
| public: |
| void test() __attribute__((deprecated)) final {} // expected-warning {{GCC does not allow an attribute in this position on a function declaration}} |
| void test2() [[]] override {} // Ok |
| void test3() __attribute__((cf_unknown_transfer)) override {} // Ok, not known to GCC. |
| }; |
| } |
| |
| template<typename T> |
| union Tu { T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} |
| |
| template<typename T> |
| union Tu2 { int x; T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} |
| |
| union Tu3 { int x; } __attribute((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} |
| |
| void tuTest1(Tu<int> u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu<int>' for 1st argument}} |
| void tuTest2(Tu3 u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu3' for 1st argument}} |
| void tu() { |
| int x = 2; |
| tuTest1(x); // expected-error {{no matching function for call to 'tuTest1'}}
|
| tuTest2(x); // expected-error {{no matching function for call to 'tuTest2'}}
|
| }
|
|
|
| [[gnu::__const__]] int f2() { return 12; }
|
| [[__gnu__::__const__]] int f3() { return 12; }
|
| [[using __gnu__ : __const__]] int f4() { return 12; }
|
|
|
| static_assert(__has_cpp_attribute(gnu::__const__));
|
| static_assert(__has_cpp_attribute(__gnu__::__const__));
|