allocate_size_hint.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// pointer allocate(size_type n, const_void_pointer hint);
16
17#include <scoped_allocator>
18#include <cassert>
19
20#include "allocators.h"
21
22int main()
23{
24#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
25
26    {
27        typedef std::scoped_allocator_adaptor<A1<int>> A;
28        A a;
29        A1<int>::allocate_called = false;
30        assert(a.allocate(10, (const void*)0) == (int*)10);
31        assert(A1<int>::allocate_called == true);
32    }
33    {
34        typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
35        A a;
36        A1<int>::allocate_called = false;
37        assert(a.allocate(10, (const void*)10) == (int*)10);
38        assert(A1<int>::allocate_called == true);
39    }
40    {
41        typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
42        A a;
43        A1<int>::allocate_called = false;
44        assert(a.allocate(10, (const void*)20) == (int*)10);
45        assert(A1<int>::allocate_called == true);
46    }
47
48    {
49        typedef std::scoped_allocator_adaptor<A2<int>> A;
50        A a;
51        A2<int>::allocate_called = false;
52        assert(a.allocate(10, (const void*)0) == (int*)0);
53        assert(A2<int>::allocate_called == true);
54    }
55    {
56        typedef std::scoped_allocator_adaptor<A2<int>, A2<int>> A;
57        A a;
58        A2<int>::allocate_called = false;
59        assert(a.allocate(10, (const void*)10) == (int*)10);
60        assert(A2<int>::allocate_called == true);
61    }
62    {
63        typedef std::scoped_allocator_adaptor<A2<int>, A2<int>, A3<int>> A;
64        A a;
65        A2<int>::allocate_called = false;
66        assert(a.allocate(10, (const void*)20) == (int*)20);
67        assert(A2<int>::allocate_called == true);
68    }
69#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
70}
71