Show operations.h syntax highlighted
// -*- c-basic-offset: 2 -*-
/*
* This file is part of the KDE libraries
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifndef _KJS_OPERATIONS_H_
#define _KJS_OPERATIONS_H_
#include "value.h"
namespace KJS {
class ExecState;
#if APPLE_CHANGES
inline bool isNaN(double d) { return isnan(d); }
inline bool isInf(double d) { return isinf(d); }
inline bool isPosInf(double d) { return isinf(d) && d > 0; }
inline bool isNegInf(double d) { return isinf(d) && d < 0; }
#else
/**
* @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 isPosInf(double d);
bool isNegInf(double d);
#endif
bool equal(ExecState *exec, const Value& v1, const Value& v2);
bool strictEqual(ExecState *exec, const Value &v1, const Value &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(ExecState *exec, const Value& v1, const Value& v2);
int maxInt(int d1, int d2);
int minInt(int d1, int 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.
*/
Value add(ExecState *exec, const Value &v1, const Value &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.
*/
Value mult(ExecState *exec, const Value &v1, const Value &v2, char oper);
};
#endif
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