1// Copyright (C) 2014-2015 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 3, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18// { dg-options "-std=gnu++11" }
19
20// libstdc++/59829
21
22#include <vector>
23#include <testsuite_allocator.h>
24
25// User-defined pointer type that throws if a null pointer is dereferenced.
26template<typename T>
27struct Pointer : __gnu_test::PointerBase<Pointer<T>, T>
28{
29  using __gnu_test::PointerBase<Pointer<T>, T>::PointerBase;
30
31  T& operator*() const
32  {
33    if (!this->value)
34      throw "Dereferenced invalid pointer";
35    return *this->value;
36  }
37};
38
39// Minimal allocator using Pointer<T>
40template<typename T>
41struct Alloc
42{
43  typedef T value_type;
44  typedef Pointer<T> pointer;
45
46  Alloc() = default;
47  template<typename U>
48    Alloc(const Alloc<U>&) { }
49
50  pointer allocate(std::size_t n)
51  { return pointer(std::allocator<T>().allocate(n)); }
52
53  void deallocate(pointer p, std::size_t n)
54  { std::allocator<T>().deallocate(p.value, n); }
55};
56
57template<typename T>
58bool operator==(Alloc<T> l, Alloc<T> r) { return true; }
59
60template<typename T>
61bool operator!=(Alloc<T> l, Alloc<T> r) { return false; }
62
63int main()
64{
65  std::vector<int, Alloc<int>> a;
66  a.data();
67}
68