1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <memory>
10 
11 // unique_ptr
12 
13 // The deleter is not called if get() == 0
14 
15 #include <memory>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
20 class Deleter {
21   int state_;
22 
23   Deleter(Deleter&);
24   Deleter& operator=(Deleter&);
25 
26 public:
Deleter()27   Deleter() : state_(0) {}
28 
state() const29   int state() const { return state_; }
30 
operator ()(void *)31   void operator()(void*) { ++state_; }
32 };
33 
34 template <class T>
test_basic()35 void test_basic() {
36   Deleter d;
37   assert(d.state() == 0);
38   {
39     std::unique_ptr<T, Deleter&> p(nullptr, d);
40     assert(p.get() == nullptr);
41     assert(&p.get_deleter() == &d);
42   }
43   assert(d.state() == 0);
44 }
45 
main(int,char **)46 int main(int, char**) {
47   test_basic<int>();
48   test_basic<int[]>();
49 
50   return 0;
51 }
52