destroy.pass.cpp revision ebedffde9adff4b56d3ccf6adcee8dc092404f0e 
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// template <class OuterAlloc, class... InnerAllocs>
13//   class scoped_allocator_adaptor
14
15// template <class T> void destroy(T* p);
16
17#include <scoped_allocator>
18#include <cassert>
19#include <string>
20
21#include "allocators.h"
22
23struct B
24{
25    static bool constructed;
26
27    B() {constructed = true;}
28    ~B() {constructed = false;}
29};
30
31bool B::constructed = false;
32
33int main()
34{
35#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
36
37    {
38        typedef std::scoped_allocator_adaptor<A1<B>> A;
39        A a;
40        char buf[100];
41        typedef B S;
42        S* s = (S*)buf;
43        assert(!S::constructed);
44        a.construct(s);
45        assert(S::constructed);
46        a.destroy(s);
47        assert(!S::constructed);
48    }
49
50    {
51        typedef std::scoped_allocator_adaptor<A3<B>, A1<B>> A;
52        A a;
53        char buf[100];
54        typedef B S;
55        S* s = (S*)buf;
56        assert(!S::constructed);
57        assert(!A3<S>::constructed);
58        assert(!A3<S>::destroy_called);
59        a.construct(s);
60        assert(S::constructed);
61        assert(A3<S>::constructed);
62        assert(!A3<S>::destroy_called);
63        a.destroy(s);
64        assert(!S::constructed);
65        assert(A3<S>::constructed);
66        assert(A3<S>::destroy_called);
67    }
68
69#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
70}
71