/builddir/build/BUILD/libutil++-1.4.0/src/sella/variant/Nullable.h

/*
** libutil++
** $Id: Nullable.h 1197 2014-10-14 22:26:11Z sella $
** Copyright (c) 2011-2014 Digital Genesis, LLC. All Rights Reserved.
** Released under the LGPL Version 2.1 License.
** http://www.digitalgenesis.com
*/

#ifndef __libutilxx__sella__variant__Nullable_H__
#define __libutilxx__sella__variant__Nullable_H__

#include "../../common.h"
#include "TypeCastException.h"
#include "UnsupportedOperatorException.h"

#include <stdlib.h>
#include <stdint.h>

#include <boost/regex.hpp>

#include <memory>
#include <vector>

namespace sella {
        namespace variant {
                class Nullable;
        }
}

class sella::variant::Nullable {
        public:
                static const int Type = 0x00;

        public:
                /* Constructors */
                Nullable() throw ();
                Nullable(std::shared_ptr<void> value) throw ();

                Nullable(const Nullable &other) throw ();
                virtual ~Nullable() throw ();

                /* Operators */
                Nullable& operator=(const Nullable &other) throw ();

                /* Public Member Functions */
                virtual const std::shared_ptr<void> get() const throw ();
                virtual std::shared_ptr<void> get() throw ();
                virtual void shrink_to_fit() throw ();
                virtual const std::string& str() const throw () = 0;
                virtual const char* c_str() const throw ();

                bool isNull() const throw ();

        protected:
                std::vector<std::string> tokenize(const std::string &value, const boost::regex &pattern) const throw (TypeCastException);

                std::shared_ptr<void>   value;
                mutable std::string             cache;
};

#endif

/*
** vim: noet ts=3 sw=3
*/

---