1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify 2 3 struct A { 4 int &f(int*); 5 float &f(int*) const noexcept; 6 7 int *ptr; 8 auto g1() noexcept(noexcept(f(ptr))) -> decltype(f(this->ptr)); 9 auto g2() const noexcept(noexcept(f((*this).ptr))) -> decltype(f(ptr)); 10 }; 11 12 void testA(A &a) { 13 int &ir = a.g1(); 14 float &fr = a.g2(); 15 static_assert(!noexcept(a.g1()), "exception-specification failure"); 16 static_assert(noexcept(a.g2()), "exception-specification failure"); 17 } 18 19 struct B { 20 char g(); 21 template<class T> auto f(T t) -> decltype(t + g()) 22 { return t + g(); } 23 }; 24 25 template auto B::f(int t) -> decltype(t + g()); 26 27 template<typename T> 28 struct C { 29 int &f(T*); 30 float &f(T*) const noexcept; 31 32 T* ptr; 33 auto g1() noexcept(noexcept(f(ptr))) -> decltype(f((*this).ptr)); 34 auto g2() const noexcept(noexcept(f(((this))->ptr))) -> decltype(f(ptr)); 35 }; 36 37 void test_C(C<int> ci) { 38 int *p = 0; 39 int &ir = ci.g1(); 40 float &fr = ci.g2(); 41 static_assert(!noexcept(ci.g1()), "exception-specification failure"); 42 static_assert(noexcept(ci.g2()), "exception-specification failure"); 43 } 44 45 namespace PR10036 { 46 template <class I> 47 void 48 iter_swap(I x, I y) noexcept; 49 50 template <class T> 51 class A 52 { 53 T t_; 54 public: 55 void swap(A& a) noexcept(noexcept(iter_swap(&t_, &a.t_))); 56 }; 57 58 void test() { 59 A<int> i, j; 60 i.swap(j); 61 } 62 } 63 64 namespace Static { 65 struct X1 { 66 int m; 67 static auto f() -> decltype(m); // expected-error{{'this' cannot be implicitly used in a static member function declaration}} 68 static auto g() -> decltype(this->m); // expected-error{{'this' cannot be used in a static member function declaration}} 69 70 static int h(); 71 72 static int i() noexcept(noexcept(m + 2)); // expected-error{{'this' cannot be implicitly used in a static member function declaration}} 73 }; 74 75 auto X1::h() -> decltype(m) { return 0; } // expected-error{{'this' cannot be implicitly used in a static member function declaration}} 76 77 template<typename T> 78 struct X2 { 79 int m; 80 81 T f(T*); 82 static T f(int); 83 84 auto g(T x) -> decltype(f(x)) { return 0; } 85 }; 86 87 void test_X2() { 88 X2<int>().g(0); 89 } 90 } 91 92 namespace PR12564 { 93 struct Base { 94 void bar(Base&) {} 95 }; 96 97 struct Derived : Base { 98 void foo(Derived& d) noexcept(noexcept(d.bar(d))) {} 99 }; 100 } 101
