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 // Can't assign from const lvalue
17 
18 #include <memory>
19 #include <utility>
20 #include <cassert>
21 
22 #include "../deleter.h"
23 
24 struct A
25 {
26     static int count;
AA27     A() {++count;}
AA28     A(const A&) {++count;}
~AA29     virtual ~A() {--count;}
30 };
31 
32 int A::count = 0;
33 
34 struct B
35     : public A
36 {
37     static int count;
BB38     B() {++count;}
BB39     B(const B&) {++count;}
~BB40     virtual ~B() {--count;}
41 };
42 
43 int B::count = 0;
44 
main()45 int main()
46 {
47     {
48     Deleter<B> db(5);
49     const boost::unique_ptr<B[], Deleter<B>&> s(new B, db);
50     A* p = s.get();
51     Deleter<A> da(6);
52     boost::unique_ptr<A[], Deleter<A>&> s2(new A, da);
53     s2 = s;
54     assert(s2.get() == p);
55     assert(s.get() == 0);
56     assert(A::count == 1);
57     assert(B::count == 1);
58     assert(s2.get_deleter().state() == 5);
59     }
60     assert(A::count == 0);
61     assert(B::count == 0);
62 }
63