pointer01.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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// unique_ptr(pointer) ctor should only require default Deleter ctor
20
21struct A
22{
23    static int count;
24    A() {++count;}
25    A(const A&) {++count;}
26    ~A() {--count;}
27};
28
29int A::count = 0;
30
31class Deleter
32{
33    int state_;
34
35    Deleter(Deleter&);
36    Deleter& operator=(Deleter&);
37
38public:
39    Deleter() : state_(5) {}
40
41    int state() const {return state_;}
42
43    void operator()(A* p) {delete p;}
44};
45
46int main()
47{
48    {
49    A* p = new A;
50    assert(A::count == 1);
51    std::unique_ptr<A> s(p);
52    assert(s.get() == p);
53    }
54    assert(A::count == 0);
55    {
56    A* p = new A;
57    assert(A::count == 1);
58    std::unique_ptr<A, Deleter> s(p);
59    assert(s.get() == p);
60    assert(s.get_deleter().state() == 5);
61    }
62    assert(A::count == 0);
63}
64