nullptr_t_deleter.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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// shared_ptr
13
14// template<class D> shared_ptr(nullptr_t, D d);
15
16#include <memory>
17#include <cassert>
18#include "../test_deleter.h"
19
20struct A
21{
22    static int count;
23
24    A() {++count;}
25    A(const A&) {++count;}
26    ~A() {--count;}
27};
28
29int A::count = 0;
30
31int main()
32{
33    {
34    std::shared_ptr<A> p(nullptr, test_deleter<A>(3));
35    assert(A::count == 0);
36    assert(p.use_count() == 1);
37    assert(p.get() == 0);
38    test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p);
39    assert(test_deleter<A>::count == 1);
40    assert(test_deleter<A>::dealloc_count == 0);
41    assert(d);
42    assert(d->state() == 3);
43    }
44    assert(A::count == 0);
45    assert(test_deleter<A>::count == 0);
46    assert(test_deleter<A>::dealloc_count == 1);
47}
48