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 // shared_ptr
12 
13 // template<class D> shared_ptr(nullptr_t, D d);
14 
15 #include <memory>
16 #include <cassert>
17 #include "test_macros.h"
18 #include "deleter_types.h"
19 
20 struct A
21 {
22     static int count;
23 
AA24     A() {++count;}
AA25     A(const A&) {++count;}
~AA26     ~A() {--count;}
27 };
28 
29 int A::count = 0;
30 
main(int,char **)31 int main(int, char**)
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         assert(test_deleter<A>::count == 1);
39         assert(test_deleter<A>::dealloc_count == 0);
40 #ifndef TEST_HAS_NO_RTTI
41         test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p);
42         assert(d);
43         assert(d->state() == 3);
44 #endif
45     }
46     assert(A::count == 0);
47     assert(test_deleter<A>::count == 0);
48     assert(test_deleter<A>::dealloc_count == 1);
49 
50     {
51         std::shared_ptr<A const> p(nullptr, test_deleter<A const>(3));
52         assert(p.get() == nullptr);
53     }
54 
55     return 0;
56 }
57