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(pointer) ctor
15
16#include <memory>
17#include <cassert>
18
19// template <class U> explicit unique_ptr(auto_ptr<U>&);
20
21struct A
22{
23    static int count;
24    A() {++count;}
25    A(const A&) {++count;}
26    virtual ~A() {--count;}
27};
28
29int A::count = 0;
30
31struct B
32    : public A
33{
34    static int count;
35    B() {++count;}
36    B(const B&) {++count;}
37    virtual ~B() {--count;}
38};
39
40int B::count = 0;
41
42struct Deleter
43{
44    template <class T>
45        void operator()(T*) {}
46};
47
48int main()
49{
50    {
51    B* p = new B;
52    std::auto_ptr<B> ap(p);
53    std::unique_ptr<A, Deleter> up(ap);
54    assert(up.get() == p);
55    assert(ap.get() == 0);
56    assert(A::count == 1);
57    assert(B::count == 1);
58    }
59    assert(A::count == 0);
60    assert(B::count == 0);
61}
62