move_convert10.fail.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
1//===----------------------------------------------------------------------===//
2//
3// ��������������������The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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// test converting move ctor.  Should only require a MoveConstructible deleter, or if
20//    deleter is a reference, not even that.
21// implicit version
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 std::unique_ptr<B> s(new B);
48    A* p = s.get();
49    std::unique_ptr<A> s2 = s;
50    assert(s2.get() == p);
51    assert(s.get() == 0);
52    assert(A::count == 1);
53    assert(B::count == 1);
54    }
55    assert(A::count == 0);
56    assert(B::count == 0);
57}
58