| // RUN: %clang_cc1 -verify %s -std=c++11 |
| |
| // A function that is explicitly defaulted shall |
| struct A { |
| // -- be a special member function, |
| A(int) = default; // expected-error {{only special member functions may be defaulted}} |
| |
| // -- have the same declared function type as if it had been implicitly |
| // declared |
| void operator=(const A &) = default; // expected-error {{must return 'A &'}} |
| A(...) = default; // expected-error {{cannot be variadic}} |
| A(const A &, ...) = default; // expected-error {{cannot be variadic}} |
| |
| // (except for possibly differing ref-qualifiers |
| A &operator=(A &&) & = default; |
| |
| // and except that in the case of a copy constructor or copy assignment |
| // operator, the parameter type may be "reference to non-const T") |
| A(A &) = default; |
| A &operator=(A &) = default; |
| |
| // -- not have default arguments |
| A(double = 0.0) = default; // expected-error {{cannot have default arguments}} |
| A(const A & = 0) = default; // expected-error {{cannot have default arguments}} |
| }; |
