/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright 2018 Danny Robson <danny@nerdcruft.net>
 */

#ifndef CRUFT_UTIL_ALLOC_FORWARDING_HPP
#define CRUFT_UTIL_ALLOC_FORWARDING_HPP

#include <utility>

namespace util::alloc {
    template <typename BackingT>
    class forwarding {
    public:
        explicit forwarding (BackingT &backing):
            m_backing (backing)
        { ; }

        template <typename ...Args>
        auto allocate (Args &&...args)
        {
            return m_backing.allocate (std::forward<Args> (args)...);
        }

        template <typename ...Args>
        auto deallocate (Args &&...args)
        {
            return m_backing.deallocate (std::forward<Args> (args)...);
        }

        auto data  (void) { return m_backing.data ();  }
        auto begin (void) { return m_backing.begin (); }
        auto end   (void) { return m_backing.end ();   }

        auto data  (void) const { return m_backing.data ();  }
        auto begin (void) const { return m_backing.begin (); }
        auto end   (void) const { return m_backing.end ();   }

        auto capacity (void) const { return m_backing.capacity (); }
        auto used     (void) const { return m_backing.used (); }
        auto remain   (void) const { return m_backing.remain (); }

    private:
        BackingT &m_backing;
    };
};

#endif