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, D&>(pointer, d) does not requires CopyConstructible deleter
20 
21 struct A
22 {
23     static int count;
24     A() {++count;}
25     A(const A&) {++count;}
26     ~A() {--count;}
27 };
28 
29 int A::count = 0;
30 
31 class Deleter
32 {
33     int state_;
34 
35     Deleter(const Deleter&);
36     Deleter& operator=(const Deleter&);
37 public:
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) {delete p;}
45 };
46 
47 int main()
48 {
49     {
50     A* p = new A;
51     assert(A::count == 1);
52     Deleter d;
53     std::unique_ptr<A, Deleter&> s(p, d);
54     assert(s.get() == p);
55     assert(s.get_deleter().state() == 5);
56     d.set_state(6);
57     assert(s.get_deleter().state() == 6);
58     }
59     assert(A::count == 0);
60 }
61