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// { dg-do compile { target c++11 } }
// Copyright (C) 2011-2019 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/>.
// test that propagate_on_container_xxx is true iff it is true for
// any of the outer or inner allocators
#include <scoped_allocator>
using std::scoped_allocator_adaptor;
typedef short test_type;
template<typename T>
struct minimal_allocator
{
typedef T value_type;
minimal_allocator();
template <typename U>
minimal_allocator(const minimal_allocator<U>&);
T* allocate(std::size_t);
void deallocate(T*, std::size_t);
};
template<typename T, bool copy, bool move, bool swap>
struct test_allocator : minimal_allocator<T>
{
template<typename U>
struct rebind
{ using other = test_allocator<U, copy, move, swap>; };
struct propagate_on_container_copy_assignment
: std::integral_constant<bool, copy> { };
struct propagate_on_container_move_assignment
: std::integral_constant<bool, move> { };
struct propagate_on_container_swap
: std::integral_constant<bool, swap> { };
};
template<typename A>
constexpr bool prop_on_copy()
{
typedef typename A::propagate_on_container_copy_assignment type;
return type::value;
}
template<typename A>
constexpr bool prop_on_move()
{
typedef typename A::propagate_on_container_move_assignment type;
return type::value;
}
template<typename A>
constexpr bool prop_on_swap()
{
typedef typename A::propagate_on_container_swap type;
return type::value;
}
template<typename A, bool C, bool M, bool S>
constexpr bool test1()
{
static_assert( prop_on_copy<A>() == C, "copy" );
static_assert( prop_on_move<A>() == M, "move" );
static_assert( prop_on_swap<A>() == S, "swap" );
return true;
}
template<bool C, bool M, bool S>
constexpr bool test2()
{
typedef minimal_allocator<test_type> base_alloc;
typedef test_allocator<test_type, C, M, S> test_alloc;
typedef scoped_allocator_adaptor<base_alloc, test_alloc> scoped1;
typedef scoped_allocator_adaptor<test_alloc, base_alloc> scoped2;
typedef scoped_allocator_adaptor<test_alloc, test_alloc> scoped3;
return test1<scoped1, C, M, S>()
&& test1<scoped2, C, M, S>()
&& test1<scoped3, C, M, S>();
}
static_assert( test2<false, false, false>(), "never propagate" );
static_assert( test2<true, false, false>(), "propagate on copy" );
static_assert( test2<false, true, false>(), "propagate on move" );
static_assert( test2<false, false, true>(), "propagate on swap" );
static_assert( test2<true, true, false>(), "propagate on copy & move" );
static_assert( test2<true, false, true>(), "propagate on copy & swap" );
static_assert( test2<false, true, true>(), "propagate on move & swap" );
static_assert( test2<true, true, true>(), "always propagate" );
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