61 lines · cpp
1// RUN: %clang_cc1 -std=gnu++03 -fsyntax-only -fms-compatibility -Wno-c++11-extensions -Wno-c++17-extensions -verify %s2// RUN: %clang_cc1 -std=gnu++17 -fsyntax-only -fms-compatibility -verify %s3 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 this10 // position.11 auto P2 = new int * __sptr; // Ok12}13 14void g(int a[static [[]] 5]); // expected-error {{static array size is a C99 feature, not permitted in C++}}15 16template<typename T> struct A {17 int x[sizeof(T)] __attribute((vector_size(8))); // expected-error {{invalid vector element type 'int[sizeof(T)]'}}18};19 20typedef int myvect[4] __attribute__((vector_size(16))); // expected-error {{invalid vector element type 'int[4]'}}21void foo(myvect *in, myvect *out) { (*out)[0] = (*in)[0]; }22 23namespace {24class B {25public:26 virtual void test() {}27 virtual void test2() {}28 virtual void test3() {}29};30 31class D : public B {32public:33 void test() __attribute__((deprecated)) final {} // expected-warning {{GCC does not allow an attribute in this position on a function declaration}}34 void test2() [[]] override {} // Ok35 void test3() __attribute__((cf_unknown_transfer)) override {} // Ok, not known to GCC.36};37}38 39template<typename T>40union Tu { T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}}41 42template<typename T>43union Tu2 { int x; T b; } __attribute__((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}}44 45union Tu3 { int x; } __attribute((transparent_union)); // expected-warning {{'transparent_union' attribute ignored}}46 47void tuTest1(Tu<int> u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu<int>' for 1st argument}}48void tuTest2(Tu3 u); // expected-note {{candidate function not viable: no known conversion from 'int' to 'Tu3' for 1st argument}}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 55[[gnu::__const__]] int f2() { return 12; }56[[__gnu__::__const__]] int f3() { return 12; }57[[using __gnu__ : __const__]] int f4() { return 12; }58 59static_assert(__has_cpp_attribute(gnu::__const__));60static_assert(__has_cpp_attribute(__gnu__::__const__));61