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.  Can't copy from lvalue
17 
18 #include <memory>
19 #include <cassert>
20 
21 struct A
22 {
23     static int count;
AA24     A() {++count;}
AA25     A(const A&) {++count;}
~AA26     ~A() {--count;}
27 };
28 
29 int A::count = 0;
30 
31 class Deleter
32 {
33     int state_;
34 
35 public:
36 
Deleter()37     Deleter() : state_(5) {}
38 
state() const39     int state() const {return state_;}
40 
operator ()(A * p)41     void operator()(A* p) {delete [] p;}
42 };
43 
main()44 int main()
45 {
46     {
47     std::unique_ptr<A[], Deleter> s(new A[3]);
48     A* p = s.get();
49     std::unique_ptr<A[], Deleter> s2 = s;
50     assert(s2.get() == p);
51     assert(s.get() == 0);
52     assert(A::count == 1);
53     }
54     assert(A::count == 0);
55 }
56