| 1 | // -*- c-basic-offset: 2 -*-
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| 2 | /*
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| 3 | * This file is part of the KDE libraries
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| 4 | * Copyright (C) 1999-2000 Harri Porten ([email protected])
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU Library General Public
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| 8 | * License as published by the Free Software Foundation; either
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| 9 | * version 2 of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This library is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | * Library General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU Library General Public License
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| 17 | * along with this library; see the file COPYING.LIB. If not, write to
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| 18 | * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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| 19 | * Boston, MA 02111-1307, USA.
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | #ifndef _KJS_OPERATIONS_H_
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| 24 | #define _KJS_OPERATIONS_H_
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| 25 |
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| 26 | #include "value.h"
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| 27 |
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| 28 | namespace KJS {
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| 29 |
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| 30 | class ExecState;
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| 31 |
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| 32 | /**
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| 33 | * @return True if d is not a number (platform support required).
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| 34 | */
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| 35 | bool isNaN(double d);
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| 36 | /**
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| 37 | * @return True if d is infinite (platform support required).
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| 38 | */
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| 39 | bool isInf(double d);
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| 40 | bool isPosInf(double d);
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| 41 | bool isNegInf(double d);
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| 42 | bool equal(ExecState *exec, const Value& v1, const Value& v2);
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| 43 | bool strictEqual(ExecState *exec, const Value &v1, const Value &v2);
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| 44 | /**
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| 45 | * This operator performs an abstract relational comparision of the two
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| 46 | * arguments that can be of arbitrary type. If possible, conversions to the
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| 47 | * string or number type will take place before the comparison.
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| 48 | *
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| 49 | * @return 1 if v1 is "less-than" v2, 0 if the relation is "greater-than-or-
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| 50 | * equal". -1 if the result is undefined.
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| 51 | */
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| 52 | int relation(ExecState *exec, const Value& v1, const Value& v2);
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| 53 | int maxInt(int d1, int d2);
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| 54 | int minInt(int d1, int d2);
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| 55 | /**
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| 56 | * Additive operator. Either performs an addition or substraction of v1
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| 57 | * and v2.
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| 58 | * @param oper '+' or '-' for an addition or substraction, respectively.
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| 59 | * @return The result of the operation.
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| 60 | */
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| 61 | Value add(ExecState *exec, const Value &v1, const Value &v2, char oper);
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| 62 | /**
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| 63 | * Multiplicative operator. Either multiplies/divides v1 and v2 or
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| 64 | * calculates the remainder from an division.
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| 65 | * @param oper '*', '/' or '%' for a multiplication, division or
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| 66 | * modulo operation.
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| 67 | * @return The result of the operation.
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| 68 | */
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| 69 | Value mult(ExecState *exec, const Value &v1, const Value &v2, char oper);
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| 70 |
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| 71 | };
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| 72 |
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| 73 | #endif
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