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// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2008 Alistair Riddoch
//
// This program 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 2 of the License, or
// (at your option) any later version.
//
// This program 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 program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#ifndef COMMON_VARIABLE_H
#define COMMON_VARIABLE_H
#include <iosfwd>
/// \brief Abstract class for dynamic variable monitors
///
/// Variables which should be represented in the monitors output are
/// referenced by subclasses this interface
class VariableBase {
public:
virtual ~VariableBase() = 0;
virtual void send(std::ostream &) = 0;
};
/// \brief Concrete class template for dynamic variable monitors
///
/// Objects of this type expose the variable they reference to the
/// monitoring subsystem.
template<typename T>
class Variable : public VariableBase {
protected:
const T & m_variable;
public:
Variable(const T & variable);
virtual ~Variable();
virtual void send(std::ostream &);
};
#endif // COMMON_VARIABLE_H
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