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 move ctor
15 
16 // test move ctor.  Should only require a MoveConstructible deleter, or if
17 //    deleter is a reference, not even that.
18 
19 #include <memory>
20 #include <cassert>
21 
22 #include "../../deleter.h"
23 
24 struct A
25 {
26     static int count;
27     A() {++count;}
28     A(const A&) {++count;}
29     ~A() {--count;}
30 };
31 
32 int A::count = 0;
33 
34 class NCDeleter
35 {
36     int state_;
37 
38     NCDeleter(NCDeleter&);
39     NCDeleter& operator=(NCDeleter&);
40 public:
41 
42     NCDeleter() : state_(5) {}
43 
44     int state() const {return state_;}
45     void set_state(int s) {state_ = s;}
46 
47     void operator()(A* p) {delete [] p;}
48 };
49 
50 std::unique_ptr<A[]>
51 source1()
52 {
53     return std::unique_ptr<A[]>(new A[3]);
54 }
55 
56 void sink1(std::unique_ptr<A[]> p)
57 {
58 }
59 
60 std::unique_ptr<A[], Deleter<A[]> >
61 source2()
62 {
63     return std::unique_ptr<A[], Deleter<A[]> >(new A[3]);
64 }
65 
66 void sink2(std::unique_ptr<A[], Deleter<A[]> > p)
67 {
68 }
69 
70 std::unique_ptr<A[], NCDeleter&>
71 source3()
72 {
73     static NCDeleter d;
74     return std::unique_ptr<A[], NCDeleter&>(new A[3], d);
75 }
76 
77 void sink3(std::unique_ptr<A[], NCDeleter&> p)
78 {
79 }
80 
81 int main()
82 {
83     sink1(source1());
84     sink2(source2());
85     sink3(source3());
86     assert(A::count == 0);
87 }
88