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// UNSUPPORTED: c++03
10
11// <memory>
12
13// template <class OuterAlloc, class... InnerAllocs>
14// class scoped_allocator_adaptor
15
16// template <class T> void destroy(T* p);
17
18#include <scoped_allocator>
19#include <cassert>
20#include <string>
21
22#include "test_macros.h"
23#include "allocators.h"
24
25struct B {
26 static bool constructed;
27
28 B() { constructed = true; }
29 ~B() { constructed = false; }
30};
31
32bool B::constructed = false;
33
34int main(int, char**) {
35 {
36 typedef std::scoped_allocator_adaptor<A1<B>> A;
37 A a;
38 char buf[100];
39 typedef B S;
40 S* s = (S*)buf;
41 assert(!S::constructed);
42 a.construct(s);
43 assert(S::constructed);
44 a.destroy(s);
45 assert(!S::constructed);
46 }
47
48 {
49 typedef std::scoped_allocator_adaptor<A3<B>, A1<B>> A;
50 A a;
51 char buf[100];
52 typedef B S;
53 S* s = (S*)buf;
54 assert(!S::constructed);
55 assert(!A3<S>::constructed);
56 assert(!A3<S>::destroy_called);
57 a.construct(s);
58 assert(S::constructed);
59 assert(A3<S>::constructed);
60 assert(!A3<S>::destroy_called);
61 a.destroy(s);
62 assert(!S::constructed);
63 assert(A3<S>::constructed);
64 assert(A3<S>::destroy_called);
65 }
66
67 return 0;
68}
69

source code of libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.members/destroy.pass.cpp