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 <cassert>
20
21#include "../deleter.h"
22
23struct A
24{
25    static int count;
26    A() {++count;}
27    A(const A&) {++count;}
28    virtual ~A() {--count;}
29};
30
31int A::count = 0;
32
33struct B
34    : public A
35{
36    static int count;
37    B() {++count;}
38    B(const B&) {++count;}
39    virtual ~B() {--count;}
40};
41
42int B::count = 0;
43
44int main()
45{
46    {
47    const boost::unique_ptr<B[], Deleter<B> > s(new B);
48    A* p = s.get();
49    boost::unique_ptr<A[], Deleter<A> > s2;
50    s2 = s;
51    assert(s2.get() == p);
52    assert(s.get() == 0);
53    assert(A::count == 1);
54    assert(B::count == 1);
55    assert(s2.get_deleter().state() == 5);
56    assert(s.get_deleter().state() == 0);
57    }
58    assert(A::count == 0);
59    assert(B::count == 0);
60}
61