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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#pragma once
#include <immer/refcount/no_refcount_policy.hpp>
namespace immer {
template <typename Deriv, typename RefcountPolicy>
class enable_intrusive_ptr
{
mutable RefcountPolicy refcount_data_;
public:
enable_intrusive_ptr()
: refcount_data_{disowned{}}
{}
friend void intrusive_ptr_add_ref(const Deriv* x)
{
x->refcount_data_.inc();
}
friend void intrusive_ptr_release(const Deriv* x)
{
if (x->refcount_data_.dec())
delete x;
}
};
} // namespace immer
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