#ifndef GINAC_RA_ALGEBRAICNUMBER_H
#define GINAC_RA_ALGEBRAICNUMBER_H

/**
 * Collection of all operators needed.
 *
 * This external declaration and implementation provides a better and standardized overview. 
 *
 *@author Ulrich Loup
 *@since 2010-09-20
 *@version 2010-09-22
 *
 * Notation is following http://www.possibility.com/Cpp/CppCodingStandard.html.
 */

namespace GiNaC
{
	
class OpenInterval;

//////////////////
// OpenInterval //
//////////////////

// binary arithmetic operators of OpenInterval
const OpenInterval operator+(const OpenInterval&, const OpenInterval&);
const OpenInterval operator-(const OpenInterval&, const OpenInterval&);
const OpenInterval operator*(const OpenInterval&, const OpenInterval&);

// unary arithmetic operators of OpenInterval
const OpenInterval operator-(const OpenInterval&);

} // namespace GiNaC

#endif // GINAC_RA_ALGEBRAICNUMBER_H