pointer_deleter04.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<T, const D&>(pointer, d) does not requires CopyConstructible deleter
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(const Deleter&);
36    Deleter& operator=(const Deleter&);
37public:
38
39    Deleter() : state_(5) {}
40
41    int state() const {return state_;}
42    void set_state(int s) {state_ = s;}
43
44    void operator()(A* p) const {delete p;}
45};
46
47int main()
48{
49    {
50    A* p = new A;
51    assert(A::count == 1);
52    Deleter d;
53    std::unique_ptr<A, const Deleter&> s(p, d);
54    assert(s.get() == p);
55    assert(s.get_deleter().state() == 5);
56    }
57    assert(A::count == 0);
58}
59