// -*- 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; /** * @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); 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