5 struct Base { };  struct
6 struct Derived : Base { }; // expected-note{{candidate constructor (the implicit copy constructor) …
11 struct Derived2 : Base { };
15   operator Base&() const;
32   operator Base() const;
51 void bind_lvalue_to_lvalue(Base b, Derived d,   in bind_lvalue_to_lvalue()
52                            const Base bc, const Derived dc,  in bind_lvalue_to_lvalue()
56   Base &br1 = b;  in bind_lvalue_to_lvalue()
57   Base &br2 = d;  in bind_lvalue_to_lvalue()
60   Base &br3 = bc; // expected-error{{drops 'const' qualifier}}  in bind_lvalue_to_lvalue()
61   Base &br4 = dc; // expected-error{{drops 'const' qualifier}}  in bind_lvalue_to_lvalue()
62 …Base &br5 = diamond; // expected-error{{ambiguous conversion from derived class 'Diamond' to base …  in bind_lvalue_to_lvalue()
67 void bind_lvalue_quals(volatile Base b, volatile Derived d,  in bind_lvalue_quals()
68                        volatile const Base bvc, volatile const Derived dvc,  in bind_lvalue_quals()
70   volatile Base &bvr1 = b;  in bind_lvalue_quals()
71   volatile Base &bvr2 = d;  in bind_lvalue_quals()
72 …volatile Base &bvr3 = bvc; // expected-error{{binding value of type 'const volatile Base' to refer…  in bind_lvalue_quals()
73 …volatile Base &bvr4 = dvc; // expected-error{{binding value of type 'const volatile Derived' to re…  in bind_lvalue_quals()
77   const volatile Base &bcvr1 = b;  in bind_lvalue_quals()
78   const volatile Base &bcvr2 = d;  in bind_lvalue_quals()
82 …Base &br1 = Base(); // expected-error{{non-const lvalue reference to type 'Base' cannot bind to a …  in bind_lvalue_to_rvalue()
83 …Base &br2 = Derived(); // expected-error{{non-const lvalue reference to type 'Base' cannot bind to…  in bind_lvalue_to_rvalue()
84 …const volatile Base &br3 = Base(); // expected-error{{volatile lvalue reference to type 'const vol…  in bind_lvalue_to_rvalue()
85 …const volatile Base &br4 = Derived(); // expected-error{{volatile lvalue reference to type 'const …  in bind_lvalue_to_rvalue()
91 …Base &br1 = ur; // expected-error{{non-const lvalue reference to type 'Base' cannot bind to a valu…  in bind_lvalue_to_unrelated()
92 …const volatile Base &br2 = ur; // expected-error{{volatile lvalue reference to type 'const volatil…  in bind_lvalue_to_unrelated()
97   Base &nbr1 = ConvertibleToBaseRef();  in bind_lvalue_to_conv_lvalue()
98   Base &nbr2 = ConvertibleToDerivedRef();  in bind_lvalue_to_conv_lvalue()
105 …Base &br1 = both; // expected-error{{reference initialization of type 'Base &' with initializer of…  in bind_lvalue_to_conv_lvalue_ambig()
119   const Base &br1 = create<Base>();  in bind_const_lvalue_to_rvalue()
120   const Base &br2 = create<Derived>();  in bind_const_lvalue_to_rvalue()
121   const Derived &dr1 = create<Base>(); // expected-error{{no viable conversion}}  in bind_const_lvalue_to_rvalue()
123   const Base &br3 = create<const Base>();  in bind_const_lvalue_to_rvalue()
124   const Base &br4 = create<const Derived>();  in bind_const_lvalue_to_rvalue()
126 …const Base &br5 = create<const volatile Base>(); // expected-error{{binding value of type 'const v…  in bind_const_lvalue_to_rvalue()
127 …const Base &br6 = create<const volatile Derived>(); // expected-error{{binding value of type 'cons…  in bind_const_lvalue_to_rvalue()
134   const Base &br1 = ConvertibleToBase();  in bind_const_lvalue_to_class_conv_temporary()
135   const Base &br2 = ConvertibleToDerived();  in bind_const_lvalue_to_class_conv_temporary()
139 …const Base &br1 = both; // expected-error{{reference initialization of type 'const Base &' with in…  in bind_lvalue_to_conv_rvalue_ambig()