reset_pointer_deleter.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a 
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// shared_ptr
13
14// template<class Y, class D> void reset(Y* p, D d);
15
16#include <memory>
17#include <cassert>
18#include "../test_deleter.h"
19
20struct B
21{
22    static int count;
23
24    B() {++count;}
25    B(const B&) {++count;}
26    virtual ~B() {--count;}
27};
28
29int B::count = 0;
30
31struct A
32    : public B
33{
34    static int count;
35
36    A() {++count;}
37    A(const A&) {++count;}
38    ~A() {--count;}
39};
40
41int A::count = 0;
42
43int main()
44{
45    {
46        std::shared_ptr<B> p(new B);
47        A* ptr = new A;
48        p.reset(ptr, test_deleter<A>(3));
49        assert(A::count == 1);
50        assert(B::count == 1);
51        assert(p.use_count() == 1);
52        assert(p.get() == ptr);
53        test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p);
54        assert(test_deleter<A>::count == 1);
55        assert(test_deleter<A>::dealloc_count == 0);
56        assert(d);
57        assert(d->state() == 3);
58    }
59    assert(A::count == 0);
60    assert(test_deleter<A>::count == 0);
61    assert(test_deleter<A>::dealloc_count == 1);
62    {
63        std::shared_ptr<B> p;
64        A* ptr = new A;
65        p.reset(ptr, test_deleter<A>(3));
66        assert(A::count == 1);
67        assert(B::count == 1);
68        assert(p.use_count() == 1);
69        assert(p.get() == ptr);
70        test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p);
71        assert(test_deleter<A>::count == 1);
72        assert(test_deleter<A>::dealloc_count == 1);
73        assert(d);
74        assert(d->state() == 3);
75    }
76    assert(A::count == 0);
77    assert(test_deleter<A>::count == 0);
78    assert(test_deleter<A>::dealloc_count == 2);
79}
80