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// -*- C++ -*-
// Copyright (C) 2013-2022 Free Software Foundation, Inc.
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <>.
#include <testsuite_hooks.h>
#include <map>
// { dg-do compile { target c++11 } }
// libstdc++/56613
// A conforming C++03 allocator, should still work in C++11 mode.
template<typename T>
struct alloc
typedef T value_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef unsigned size_type;
typedef int difference_type;
template<typename U>
struct rebind {
typedef alloc<U> other;
alloc() { }
template<typename U>
alloc(const alloc<U>&) { }
pointer allocate(size_type n, const void* = 0) { return
std::allocator<T>().allocate(n); }
void deallocate(pointer p, size_type n) { std::allocator<T>().deallocate(p,
n); }
size_type max_size() const { return -1; }
void construct(pointer p, const T& t) { new ((void*) p) T(t); }
void destroy(pointer p) { p->~T(); }
pointer address(reference x) const throw() { return &x; }
const_pointer address(const_reference x) const throw() { return &x; }
template<typename T, typename U>
bool operator==(alloc<T>, alloc<U>) { return true; }
template<typename T, typename U>
bool operator!=(alloc<T>, alloc<U>) { return false; }
int main()
std::map<int, int, std::less<int>, alloc<std::pair<const int, int>>> m;