| 1 | // RUN: %clang_cc1 -std=c++1z -verify %s |
|---|---|
| 2 | |
| 3 | // no objects of an abstract class can be created except as subobjects of a |
| 4 | // class derived from it |
| 5 | |
| 6 | struct A { |
| 7 | A() {} |
| 8 | A(int) : A() {} // ok |
| 9 | |
| 10 | virtual void f() = 0; // expected-note 1+{{unimplemented}} |
| 11 | }; |
| 12 | |
| 13 | void f(A &&a); |
| 14 | |
| 15 | void g() { |
| 16 | f({}); // expected-error {{abstract class}} |
| 17 | f({0}); // expected-error {{abstract class}} |
| 18 | f(0); // expected-error {{abstract class}} |
| 19 | } |
| 20 | |
| 21 | struct B : A { |
| 22 | B() : A() {} // ok |
| 23 | }; |
| 24 |