/****************************************************************************
** $Id: qsoperations.h  beta1   edited Dec 10 14:29 $
**
** Copyright (C) 2001-2002 Trolltech AS.  All rights reserved.
**
** This file is part of the Qt Script for Applications framework (QSA).
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** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
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** this file in accordance with the QSA Beta Evaluation Version License
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*****************************************************************************/

#ifndef QSOPERATIONS_H
#define QSOPERATIONS_H

#include "qsobject.h"

namespace QS {

  /**
   * @return True if d is not a number (platform support required).
   */
  bool isNaN( double d );
  /**
   * @return True if d is infinite (platform support required).
   */
  bool isInf( double d );
  bool equal( const QSObject& v1, const QSObject& v2 );
  bool strictEqual( const QSObject &v1, const QSObject &v2 );
  /**
   * This operator performs an abstract relational comparision of the two
   * arguments that can be of arbitrary type. If possible, conversions to the
   * string or number type will take place before the comparison.
   *
   * @return 1 if v1 is "less-than" v2, 0 if the relation is "greater-than-or-
   * equal". -1 if the result is undefined.
   */
  int relation( const QSObject& v1, const QSObject& v2 );
  double max( double d1, double d2 );
  double min( double d1, double d2 );
  /**
   * Additive operator. Either performs an addition or substraction of v1
   * and v2.
   * @param oper '+' or '-' for an addition or substraction, respectively.
   * @return The result of the operation.
   */
  QSObject add( const QSObject &v1, const QSObject &v2, char oper );
  /**
   * Multiplicative operator. Either multiplies/divides v1 and v2 or
   * calculates the remainder from an division.
   * @param oper '*', '/' or '%' for a multiplication, division or
   * modulo operation.
   * @return The result of the operation.
   */
  QSObject mult( const QSObject &v1, const QSObject &v2, char oper );

};

#endif