1// { dg-do compile } 2// { dg-options "-std=gnu++11" } 3 4// Copyright (C) 2013-2015 Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11// 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16// 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21#include <memory> 22#include <utility> 23#include <vector> 24#include <iterator> 25 26template <class T> 27struct MyAllocator 28{ 29 std::allocator<T> base; 30 typedef T value_type; 31 MyAllocator() = default; 32 template <class U> 33 MyAllocator(const MyAllocator<U>& other) : base(other.base) {} 34 T* allocate(std::size_t n) { return base.allocate(n); } 35 void deallocate(T* p, std::size_t n) { return base.deallocate(p, n); } 36 template <class U, class... Args> 37 void construct(U* p, Args&&... args) 38 { 39 ::new (static_cast<void*>(p)) U(std::forward<Args>(args)...); 40 } 41}; 42 43struct A 44{ 45private: 46 friend class MyAllocator<A>; 47 A(int value) : value(value) {} 48 int value; 49public: 50 A() : value() {} 51 int get() const { return value; } 52}; 53 54void foo() 55{ 56 std::vector<A, MyAllocator<A>> v1; 57 const int i = 1; 58 v1.emplace_back(i); // OK 59 std::vector<A, MyAllocator<A>> v2(std::istream_iterator<int>(), {}); // ERROR 60} 61