null.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <memory>
11
12// unique_ptr
13
14// The deleter is not called if get() == 0
15
16#include <memory>
17#include <cassert>
18
19class Deleter
20{
21    int state_;
22
23    Deleter(Deleter&);
24    Deleter& operator=(Deleter&);
25
26public:
27    Deleter() : state_(0) {}
28
29    int state() const {return state_;}
30
31    void operator()(void*) {++state_;}
32};
33
34
35int main()
36{
37    Deleter d;
38    assert(d.state() == 0);
39    {
40    std::unique_ptr<int, Deleter&> p(0, d);
41    assert(p.get() == 0);
42    assert(&p.get_deleter() == &d);
43    }
44    assert(d.state() == 0);
45}
46