1 // RUN: %clang_cc1 -std=gnu++03 -fsyntax-only -fms-compatibility -Wno-c++11-extensions -Wno-c++17-extensions -verify %s 2 // RUN: %clang_cc1 -std=gnu++17 -fsyntax-only -fms-compatibility -verify %s 3 f()4void f() { 5 // GNU-style attributes are prohibited in this position. 6 auto P = new int * __attribute__((vector_size(8))); // expected-error {{an attribute list cannot appear here}} \ 7 // expected-error {{invalid vector element type 'int *'}} 8 9 // Ensure that MS type attribute keywords are still supported in this 10 // position. 11 auto P2 = new int * __sptr; // Ok 12 } 13 14 void g(int a[static [[]] 5]); // expected-error {{static array size is a C99 feature, not permitted in C++}} 15 16 template<typename T> struct A { 17 int x[sizeof(T)] __attribute((vector_size(8))); // expected-error {{invalid vector element type 'int[sizeof(T)]'}} 18 }; 19 20 typedef int myvect[4] __attribute__((vector_size(16))); // expected-error {{invalid vector element type 'int[4]'}} foo(myvect * in,myvect * out)21void foo(myvect *in, myvect *out) { (*out)[0] = (*in)[0]; } 22 23 namespace { 24 class B { 25 public: test()26 virtual void test() {} test2()27 virtual void test2() {} test3()28 virtual void test3() {} 29 }; 30 31 class D : public B { 32 public: test()33 void test() __attribute__((deprecated)) final {} // expected-warning {{GCC does not allow an attribute in this position on a function declaration}} test2()34 void test2() [[]] override {} // Ok test3()35 void test3() __attribute__((cf_unknown_transfer)) override {} // Ok, not known to GCC. 36 }; 37 } 38 39 template<typename T> 40 union Tu { T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} 41 42 template<typename T> 43 union Tu2 { int x; T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} 44 45 union Tu3 { int x; } __attribute((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}} 46 47 void tuTest1(Tu<int> u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu<int>' for 1st argument}} 48 void tuTest2(Tu3 u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu3' for 1st argument}} tu()49void tu() { 50 int x = 2; 51 tuTest1(x); // expected-error {{no matching function for call to 'tuTest1'}} 52 tuTest2(x); // expected-error {{no matching function for call to 'tuTest2'}} 53 } 54 f2()55[[gnu::__const__]] int f2() { return 12; } f3()56[[__gnu__::__const__]] int f3() { return 12; } f4()57[[using __gnu__ : __const__]] int f4() { return 12; } 58 59 static_assert(__has_cpp_attribute(gnu::__const__)); 60 static_assert(__has_cpp_attribute(__gnu__::__const__)); 61