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// Copyright (C) 2019 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
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// 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
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
#include <memory>
template<typename Alloc>
concept has_pointer = requires { typename Alloc::pointer; };
template<typename Alloc>
concept has_const_pointer = requires { typename Alloc::const_pointer; };
template<typename Alloc>
concept has_reference = requires { typename Alloc::reference; };
template<typename Alloc>
concept has_const_reference = requires { typename Alloc::const_reference; };
template<typename Alloc>
concept has_rebind = requires { typename Alloc::template rebind<long>; };
template<typename Alloc>
concept has_construct = requires(Alloc& a, int* p) { a.construct(p); };
template<typename Alloc>
concept has_destroy = requires(Alloc& a, int* p) { a.destroy(p); };
template<typename Alloc>
concept has_max_size = requires(Alloc& a) { a.max_size(); };
using A = std::allocator<int>;
static_assert( !has_pointer<A> );
static_assert( !has_const_pointer<A> );
static_assert( !has_reference<A> );
static_assert( !has_const_reference<A> );
static_assert( !has_rebind<A> );
static_assert( !has_construct<A> );
static_assert( !has_destroy<A> );
static_assert( !has_max_size<A> );
using V = std::allocator<void>;
static_assert( !has_pointer<V> );
static_assert( !has_const_pointer<V> );
static_assert( !has_reference<V> );
static_assert( !has_const_reference<V> );
static_assert( !has_rebind<V> );
static_assert( !has_construct<V> );
static_assert( !has_destroy<V> );
static_assert( !has_max_size<V> );
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