/*! \file piunits_value.h
 * \ingroup Core
 * \~\brief
 * \~english Unit value
 * \~russian Единица измерения
 */
/*
    PIP - Platform Independent Primitives
    Unit value
    Ivan Pelipenko peri4ko@yandex.ru

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef PIUNITS_VALUE_H
#define PIUNITS_VALUE_H

#include "piunits_base.h"


namespace PIUnits {

class PIP_EXPORT Value {
public:
	Value(double v = 0., int t = Class::Invalid);

	bool isValid() const { return m_type >= 0 && m_class; }
	bool isNotValid() const { return m_type < 0 || !m_class; }

	double value() const { return m_value; }
	PIString toString(char format = 'g', int prec = 5) const;

	bool convert(int type_to);
	Value converted(int type_to);

private:
	double m_value                       = 0.;
	int m_type                           = -1;
	Class::Internal::ClassBase * m_class = nullptr;
};

}; // namespace PIUnits

inline PICout operator<<(PICout s, const PIUnits::Value & v) {
	s << v.toString();
	return s;
}

#endif