73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// -*- C++ -*-
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// Copyright (C) 2013-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <testsuite_hooks.h>
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#include <map>
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// { dg-do compile { target c++11 } }
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// libstdc++/56613
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// A conforming C++03 allocator, should still work in C++11 mode.
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template<typename T>
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struct alloc
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{
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typedef T value_type;
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typedef T* pointer;
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typedef const T* const_pointer;
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typedef T& reference;
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typedef const T& const_reference;
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typedef unsigned size_type;
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typedef int difference_type;
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template<typename U>
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struct rebind {
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typedef alloc<U> other;
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};
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alloc() { }
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template<typename U>
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alloc(const alloc<U>&) { }
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pointer allocate(size_type n, const void* = 0) { return
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std::allocator<T>().allocate(n); }
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void deallocate(pointer p, size_type n) { std::allocator<T>().deallocate(p,
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n); }
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size_type max_size() const { return -1; }
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void construct(pointer p, const T& t) { new ((void*) p) T(t); }
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void destroy(pointer p) { p->~T(); }
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pointer address(reference x) const throw() { return &x; }
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const_pointer address(const_reference x) const throw() { return &x; }
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};
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template<typename T, typename U>
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bool operator==(alloc<T>, alloc<U>) { return true; }
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template<typename T, typename U>
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bool operator!=(alloc<T>, alloc<U>) { return false; }
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int main()
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{
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std::map<int, int, std::less<int>, alloc<std::pair<const int, int>>> m;
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m[1];
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}
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