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 assignment
15 
16 #include <memory>
17 #include <utility>
18 #include <cassert>
19 
20 struct A
21 {
22     static int count;
AA23     A() {++count;}
AA24     A(const A&) {++count;}
~AA25     virtual ~A() {--count;}
26 };
27 
28 int A::count = 0;
29 
30 struct B
31     : public A
32 {
33     static int count;
BB34     B() {++count;}
BB35     B(const B&) {++count;}
~BB36     virtual ~B() {--count;}
37 };
38 
39 int B::count = 0;
40 
main()41 int main()
42 {
43     {
44     boost::unique_ptr<B[]> s(new B);
45     A* p = s.get();
46     boost::unique_ptr<A[]> s2(new A);
47     assert(A::count == 2);
48     s2 = boost::move(s);
49     assert(s2.get() == p);
50     assert(s.get() == 0);
51     assert(A::count == 1);
52     assert(B::count == 1);
53     }
54     assert(A::count == 0);
55     assert(B::count == 0);
56 }
57