1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <memory>
11 
12 // unique_ptr
13 
14 // Test unique_ptr converting move ctor
15 
16 #include <memory>
17 #include <cassert>
18 
19 #include "../../deleter.h"
20 
21 // test converting move ctor.  Should only require a MoveConstructible deleter, or if
22 //    deleter is a reference, not even that.
23 // Implicit version
24 
25 struct A
26 {
27     static int count;
28     A() {++count;}
29     A(const A&) {++count;}
30     virtual ~A() {--count;}
31 };
32 
33 int A::count = 0;
34 
35 struct B
36     : public A
37 {
38     static int count;
39     B() {++count;}
40     B(const B&) {++count;}
41     virtual ~B() {--count;}
42 };
43 
44 int B::count = 0;
45 
46 int main()
47 {
48     std::unique_ptr<B, Deleter<B> > s(new B);
49     std::unique_ptr<A, Deleter<A> > s2 = s;
50 }
51