73 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3namespace test0 {4 struct BASE { 5 operator int &(); // expected-note {{candidate function}}6 }; 7 struct BASE1 { 8 operator int &(); // expected-note {{candidate function}}9 }; 10 11 struct B : public BASE, BASE1 {};12 13 extern B f(); 14 B b1;15 16 void func(const int ci, const char cc);17 void func(const char ci, const B b); // expected-note {{candidate function}}18 void func(const B b, const int ci); // expected-note {{candidate function}}19 20 const int Test1() {21 22 func(b1, f()); // expected-error {{call to 'func' is ambiguous}}23 return f(); // expected-error {{conversion from 'B' to 'const int' is ambiguous}}24 }25 26 // This used to crash when comparing the two operands.27 void func2(const char cc); // expected-note {{candidate function}}28 void func2(const int ci); // expected-note {{candidate function}}29 void Test2() {30 func2(b1); // expected-error {{call to 'func2' is ambiguous}}31 }32}33 34namespace test1 {35 struct E;36 struct A { 37 A (E&); 38 };39 40 struct E { 41 operator A (); 42 };43 44 struct C { 45 C (E&); 46 };47 48 void f1(A); // expected-note {{candidate function}}49 void f1(C); // expected-note {{candidate function}}50 51 void Test2()52 {53 E b;54 f1(b); // expected-error {{call to 'f1' is ambiguous}} 55 // ambiguous because b -> C via constructor and56 // b -> A via constructor or conversion function.57 }58}59 60namespace rdar8876150 {61 struct A { operator bool(); };62 struct B : A { };63 struct C : A { };64 struct D : B, C { };65 66 bool f(D d) { return !d; } // expected-error{{ambiguous conversion from derived class 'D' to base class 'rdar8876150::A':}}67}68 69namespace assignment {70 struct A { operator short(); operator bool(); }; // expected-note 2{{candidate}}71 void f(int n, A a) { n = a; } // expected-error{{ambiguous}}72}73