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943 lines
30 KiB
JavaScript
943 lines
30 KiB
JavaScript
/*
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Copyright 2013 Daniel Wirtz <dcode@dcode.io>
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Copyright 2009 The Closure Library Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS-IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @license Long.js (c) 2013 Daniel Wirtz <dcode@dcode.io>
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* Released under the Apache License, Version 2.0
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* see: https://github.com/dcodeIO/Long.js for details
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*/
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(function(global) {
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"use strict";
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/**
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* Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
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* See the from* functions below for more convenient ways of constructing Longs.
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* @exports Long
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* @class A Long class for representing a 64 bit two's-complement integer value.
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* @param {number} low The low (signed) 32 bits of the long
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* @param {number} high The high (signed) 32 bits of the long
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* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
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* @constructor
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*/
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var Long = function(low, high, unsigned) {
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/**
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* The low 32 bits as a signed value.
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* @type {number}
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* @expose
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*/
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this.low = low|0;
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/**
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* The high 32 bits as a signed value.
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* @type {number}
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* @expose
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*/
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this.high = high|0;
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/**
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* Whether unsigned or not.
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* @type {boolean}
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* @expose
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*/
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this.unsigned = !!unsigned;
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};
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// The internal representation of a long is the two given signed, 32-bit values.
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// We use 32-bit pieces because these are the size of integers on which
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// Javascript performs bit-operations. For operations like addition and
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// multiplication, we split each number into 16 bit pieces, which can easily be
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// multiplied within Javascript's floating-point representation without overflow
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// or change in sign.
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//
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// In the algorithms below, we frequently reduce the negative case to the
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// positive case by negating the input(s) and then post-processing the result.
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// Note that we must ALWAYS check specially whether those values are MIN_VALUE
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// (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
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// a positive number, it overflows back into a negative). Not handling this
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// case would often result in infinite recursion.
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//
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// Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the from*
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// methods on which they depend.
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/**
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* Tests if the specified object is a Long.
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* @param {*} obj Object
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* @returns {boolean}
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* @expose
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*/
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Long.isLong = function(obj) {
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return (obj && obj instanceof Long) === true;
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};
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/**
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* A cache of the Long representations of small integer values.
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* @type {!Object}
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* @inner
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*/
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var INT_CACHE = {};
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/**
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* A cache of the Long representations of small unsigned integer values.
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* @type {!Object}
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* @inner
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*/
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var UINT_CACHE = {};
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/**
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* Returns a Long representing the given 32 bit integer value.
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* @param {number} value The 32 bit integer in question
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* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
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* @returns {!Long} The corresponding Long value
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* @expose
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*/
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Long.fromInt = function(value, unsigned) {
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var obj, cachedObj;
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if (!unsigned) {
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value = value | 0;
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if (-128 <= value && value < 128) {
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cachedObj = INT_CACHE[value];
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if (cachedObj)
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return cachedObj;
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}
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obj = new Long(value, value < 0 ? -1 : 0, false);
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if (-128 <= value && value < 128)
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INT_CACHE[value] = obj;
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return obj;
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} else {
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value = value >>> 0;
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if (0 <= value && value < 256) {
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cachedObj = UINT_CACHE[value];
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if (cachedObj)
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return cachedObj;
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}
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obj = new Long(value, (value | 0) < 0 ? -1 : 0, true);
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if (0 <= value && value < 256)
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UINT_CACHE[value] = obj;
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return obj;
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}
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};
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/**
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* Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
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* @param {number} value The number in question
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* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
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* @returns {!Long} The corresponding Long value
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* @expose
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*/
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Long.fromNumber = function(value, unsigned) {
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unsigned = !!unsigned;
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if (isNaN(value) || !isFinite(value))
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return Long.ZERO;
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if (!unsigned && value <= -TWO_PWR_63_DBL)
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return Long.MIN_VALUE;
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if (!unsigned && value + 1 >= TWO_PWR_63_DBL)
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return Long.MAX_VALUE;
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if (unsigned && value >= TWO_PWR_64_DBL)
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return Long.MAX_UNSIGNED_VALUE;
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if (value < 0)
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return Long.fromNumber(-value, unsigned).negate();
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return new Long((value % TWO_PWR_32_DBL) | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
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};
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/**
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* Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits. Each is
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* assumed to use 32 bits.
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* @param {number} lowBits The low 32 bits
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* @param {number} highBits The high 32 bits
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* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
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* @returns {!Long} The corresponding Long value
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* @expose
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*/
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Long.fromBits = function(lowBits, highBits, unsigned) {
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return new Long(lowBits, highBits, unsigned);
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};
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/**
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* Returns a Long representation of the given string, written using the specified radix.
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* @param {string} str The textual representation of the Long
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* @param {(boolean|number)=} unsigned Whether unsigned or not, defaults to `false` for signed
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* @param {number=} radix The radix in which the text is written (2-36), defaults to 10
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* @returns {!Long} The corresponding Long value
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* @expose
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*/
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Long.fromString = function(str, unsigned, radix) {
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if (str.length === 0)
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throw Error('number format error: empty string');
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if (str === "NaN" || str === "Infinity" || str === "+Infinity" || str === "-Infinity")
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return Long.ZERO;
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if (typeof unsigned === 'number') // For goog.math.long compatibility
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radix = unsigned,
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unsigned = false;
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radix = radix || 10;
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if (radix < 2 || 36 < radix)
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throw Error('radix out of range: ' + radix);
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var p;
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if ((p = str.indexOf('-')) > 0)
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throw Error('number format error: interior "-" character: ' + str);
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else if (p === 0)
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return Long.fromString(str.substring(1), unsigned, radix).negate();
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// Do several (8) digits each time through the loop, so as to
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// minimize the calls to the very expensive emulated div.
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var radixToPower = Long.fromNumber(Math.pow(radix, 8));
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var result = Long.ZERO;
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for (var i = 0; i < str.length; i += 8) {
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var size = Math.min(8, str.length - i);
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var value = parseInt(str.substring(i, i + size), radix);
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if (size < 8) {
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var power = Long.fromNumber(Math.pow(radix, size));
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result = result.multiply(power).add(Long.fromNumber(value));
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} else {
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result = result.multiply(radixToPower);
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result = result.add(Long.fromNumber(value));
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}
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}
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result.unsigned = unsigned;
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return result;
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};
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/**
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* Converts the specified value to a Long.
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* @param {!Long|number|string|!{low: number, high: number, unsigned: boolean}} val Value
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* @returns {!Long}
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* @expose
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*/
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Long.fromValue = function(val) {
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if (typeof val === 'number')
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return Long.fromNumber(val);
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if (typeof val === 'string')
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return Long.fromString(val);
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if (Long.isLong(val))
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return val;
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// Throws for not an object (undefined, null):
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return new Long(val.low, val.high, val.unsigned);
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};
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// NOTE: the compiler should inline these constant values below and then remove these variables, so there should be
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// no runtime penalty for these.
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/**
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* @type {number}
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* @const
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* @inner
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*/
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var TWO_PWR_16_DBL = 1 << 16;
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/**
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* @type {number}
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* @const
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* @inner
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*/
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var TWO_PWR_24_DBL = 1 << 24;
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/**
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* @type {number}
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* @const
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* @inner
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*/
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var TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
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/**
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* @type {number}
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* @const
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* @inner
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*/
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var TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
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/**
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* @type {number}
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* @const
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* @inner
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*/
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var TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
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/**
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* @type {!Long}
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* @const
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* @inner
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*/
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var TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
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/**
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* Signed zero.
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* @type {!Long}
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* @expose
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*/
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Long.ZERO = Long.fromInt(0);
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/**
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* Unsigned zero.
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* @type {!Long}
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* @expose
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*/
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Long.UZERO = Long.fromInt(0, true);
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/**
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* Signed one.
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* @type {!Long}
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* @expose
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*/
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Long.ONE = Long.fromInt(1);
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/**
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* Unsigned one.
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* @type {!Long}
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* @expose
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*/
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Long.UONE = Long.fromInt(1, true);
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/**
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* Signed negative one.
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* @type {!Long}
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* @expose
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*/
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Long.NEG_ONE = Long.fromInt(-1);
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/**
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* Maximum signed value.
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* @type {!Long}
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* @expose
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*/
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Long.MAX_VALUE = Long.fromBits(0xFFFFFFFF|0, 0x7FFFFFFF|0, false);
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/**
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* Maximum unsigned value.
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* @type {!Long}
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* @expose
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*/
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Long.MAX_UNSIGNED_VALUE = Long.fromBits(0xFFFFFFFF|0, 0xFFFFFFFF|0, true);
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/**
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* Minimum signed value.
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* @type {!Long}
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* @expose
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*/
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Long.MIN_VALUE = Long.fromBits(0, 0x80000000|0, false);
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/**
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* Converts the Long to a 32 bit integer, assuming it is a 32 bit integer.
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* @returns {number}
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* @expose
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*/
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Long.prototype.toInt = function() {
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return this.unsigned ? this.low >>> 0 : this.low;
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};
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/**
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* Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa).
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* @returns {number}
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* @expose
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*/
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Long.prototype.toNumber = function() {
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if (this.unsigned) {
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return ((this.high >>> 0) * TWO_PWR_32_DBL) + (this.low >>> 0);
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}
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return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
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};
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/**
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* Converts the Long to a string written in the specified radix.
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* @param {number=} radix Radix (2-36), defaults to 10
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* @returns {string}
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* @override
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* @throws {RangeError} If `radix` is out of range
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* @expose
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*/
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Long.prototype.toString = function(radix) {
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radix = radix || 10;
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if (radix < 2 || 36 < radix)
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throw RangeError('radix out of range: ' + radix);
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if (this.isZero())
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return '0';
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var rem;
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if (this.isNegative()) { // Unsigned Longs are never negative
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if (this.equals(Long.MIN_VALUE)) {
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// We need to change the Long value before it can be negated, so we remove
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// the bottom-most digit in this base and then recurse to do the rest.
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var radixLong = Long.fromNumber(radix);
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var div = this.div(radixLong);
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rem = div.multiply(radixLong).subtract(this);
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return div.toString(radix) + rem.toInt().toString(radix);
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} else
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return '-' + this.negate().toString(radix);
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}
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// Do several (6) digits each time through the loop, so as to
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// minimize the calls to the very expensive emulated div.
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var radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
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rem = this;
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var result = '';
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while (true) {
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var remDiv = rem.div(radixToPower),
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intval = rem.subtract(remDiv.multiply(radixToPower)).toInt() >>> 0,
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digits = intval.toString(radix);
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rem = remDiv;
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if (rem.isZero())
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return digits + result;
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else {
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while (digits.length < 6)
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digits = '0' + digits;
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result = '' + digits + result;
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}
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}
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};
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/**
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* Gets the high 32 bits as a signed integer.
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* @returns {number} Signed high bits
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* @expose
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*/
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Long.prototype.getHighBits = function() {
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return this.high;
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};
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/**
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* Gets the high 32 bits as an unsigned integer.
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* @returns {number} Unsigned high bits
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* @expose
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*/
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Long.prototype.getHighBitsUnsigned = function() {
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return this.high >>> 0;
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};
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/**
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* Gets the low 32 bits as a signed integer.
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* @returns {number} Signed low bits
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* @expose
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*/
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Long.prototype.getLowBits = function() {
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return this.low;
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};
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/**
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* Gets the low 32 bits as an unsigned integer.
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* @returns {number} Unsigned low bits
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* @expose
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*/
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Long.prototype.getLowBitsUnsigned = function() {
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return this.low >>> 0;
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};
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/**
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* Gets the number of bits needed to represent the absolute value of this Long.
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* @returns {number}
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* @expose
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*/
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Long.prototype.getNumBitsAbs = function() {
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if (this.isNegative()) // Unsigned Longs are never negative
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return this.equals(Long.MIN_VALUE) ? 64 : this.negate().getNumBitsAbs();
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var val = this.high != 0 ? this.high : this.low;
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for (var bit = 31; bit > 0; bit--)
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if ((val & (1 << bit)) != 0)
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break;
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return this.high != 0 ? bit + 33 : bit + 1;
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};
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/**
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* Tests if this Long's value equals zero.
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* @returns {boolean}
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* @expose
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*/
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Long.prototype.isZero = function() {
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return this.high === 0 && this.low === 0;
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};
|
|
|
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/**
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* Tests if this Long's value is negative.
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* @returns {boolean}
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* @expose
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*/
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Long.prototype.isNegative = function() {
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return !this.unsigned && this.high < 0;
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};
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|
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/**
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* Tests if this Long's value is positive.
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* @returns {boolean}
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* @expose
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|
*/
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|
Long.prototype.isPositive = function() {
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return this.unsigned || this.high >= 0;
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};
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|
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/**
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* Tests if this Long's value is odd.
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* @returns {boolean}
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* @expose
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*/
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Long.prototype.isOdd = function() {
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return (this.low & 1) === 1;
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};
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|
|
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/**
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* Tests if this Long's value is even.
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* @returns {boolean}
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* @expose
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|
*/
|
|
Long.prototype.isEven = function() {
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return (this.low & 1) === 0;
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};
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|
|
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/**
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|
* Tests if this Long's value equals the specified's.
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* @param {!Long|number|string} other Other value
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* @returns {boolean}
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* @expose
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*/
|
|
Long.prototype.equals = function(other) {
|
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if (!Long.isLong(other))
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other = Long.fromValue(other);
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if (this.unsigned !== other.unsigned && (this.high >>> 31) === 1 && (other.high >>> 31) === 1)
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return false;
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return this.high === other.high && this.low === other.low;
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};
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|
|
|
/**
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|
* Tests if this Long's value differs from the specified's.
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* @param {!Long|number|string} other Other value
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* @returns {boolean}
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* @expose
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|
*/
|
|
Long.prototype.notEquals = function(other) {
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if (!Long.isLong(other))
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other = Long.fromValue(other);
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return !this.equals(other);
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};
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|
|
|
/**
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|
* Tests if this Long's value is less than the specified's.
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* @param {!Long|number|string} other Other value
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* @returns {boolean}
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* @expose
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|
*/
|
|
Long.prototype.lessThan = function(other) {
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if (!Long.isLong(other))
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other = Long.fromValue(other);
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|
return this.compare(other) < 0;
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|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is less than or equal the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
* @expose
|
|
*/
|
|
Long.prototype.lessThanOrEqual = function(other) {
|
|
if (!Long.isLong(other))
|
|
other = Long.fromValue(other);
|
|
return this.compare(other) <= 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
* @expose
|
|
*/
|
|
Long.prototype.greaterThan = function(other) {
|
|
if (!Long.isLong(other))
|
|
other = Long.fromValue(other);
|
|
return this.compare(other) > 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than or equal the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
* @expose
|
|
*/
|
|
Long.prototype.greaterThanOrEqual = function(other) {
|
|
return this.compare(other) >= 0;
|
|
};
|
|
|
|
/**
|
|
* Compares this Long's value with the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {number} 0 if they are the same, 1 if the this is greater and -1
|
|
* if the given one is greater
|
|
* @expose
|
|
*/
|
|
Long.prototype.compare = function(other) {
|
|
if (this.equals(other))
|
|
return 0;
|
|
var thisNeg = this.isNegative(),
|
|
otherNeg = other.isNegative();
|
|
if (thisNeg && !otherNeg)
|
|
return -1;
|
|
if (!thisNeg && otherNeg)
|
|
return 1;
|
|
// At this point the sign bits are the same
|
|
if (!this.unsigned)
|
|
return this.subtract(other).isNegative() ? -1 : 1;
|
|
// Both are positive if at least one is unsigned
|
|
return (other.high >>> 0) > (this.high >>> 0) || (other.high === this.high && (other.low >>> 0) > (this.low >>> 0)) ? -1 : 1;
|
|
};
|
|
|
|
/**
|
|
* Negates this Long's value.
|
|
* @returns {!Long} Negated Long
|
|
* @expose
|
|
*/
|
|
Long.prototype.negate = function() {
|
|
if (!this.unsigned && this.equals(Long.MIN_VALUE))
|
|
return Long.MIN_VALUE;
|
|
return this.not().add(Long.ONE);
|
|
};
|
|
|
|
/**
|
|
* Returns the sum of this and the specified Long.
|
|
* @param {!Long|number|string} addend Addend
|
|
* @returns {!Long} Sum
|
|
* @expose
|
|
*/
|
|
Long.prototype.add = function(addend) {
|
|
if (!Long.isLong(addend))
|
|
addend = Long.fromValue(addend);
|
|
|
|
// Divide each number into 4 chunks of 16 bits, and then sum the chunks.
|
|
|
|
var a48 = this.high >>> 16;
|
|
var a32 = this.high & 0xFFFF;
|
|
var a16 = this.low >>> 16;
|
|
var a00 = this.low & 0xFFFF;
|
|
|
|
var b48 = addend.high >>> 16;
|
|
var b32 = addend.high & 0xFFFF;
|
|
var b16 = addend.low >>> 16;
|
|
var b00 = addend.low & 0xFFFF;
|
|
|
|
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
|
|
c00 += a00 + b00;
|
|
c16 += c00 >>> 16;
|
|
c00 &= 0xFFFF;
|
|
c16 += a16 + b16;
|
|
c32 += c16 >>> 16;
|
|
c16 &= 0xFFFF;
|
|
c32 += a32 + b32;
|
|
c48 += c32 >>> 16;
|
|
c32 &= 0xFFFF;
|
|
c48 += a48 + b48;
|
|
c48 &= 0xFFFF;
|
|
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns the difference of this and the specified Long.
|
|
* @param {!Long|number|string} subtrahend Subtrahend
|
|
* @returns {!Long} Difference
|
|
* @expose
|
|
*/
|
|
Long.prototype.subtract = function(subtrahend) {
|
|
if (!Long.isLong(subtrahend))
|
|
subtrahend = Long.fromValue(subtrahend);
|
|
return this.add(subtrahend.negate());
|
|
};
|
|
|
|
/**
|
|
* Returns the product of this and the specified Long.
|
|
* @param {!Long|number|string} multiplier Multiplier
|
|
* @returns {!Long} Product
|
|
* @expose
|
|
*/
|
|
Long.prototype.multiply = function(multiplier) {
|
|
if (this.isZero())
|
|
return Long.ZERO;
|
|
if (!Long.isLong(multiplier))
|
|
multiplier = Long.fromValue(multiplier);
|
|
if (multiplier.isZero())
|
|
return Long.ZERO;
|
|
if (this.equals(Long.MIN_VALUE))
|
|
return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
|
|
if (multiplier.equals(Long.MIN_VALUE))
|
|
return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
|
|
|
|
if (this.isNegative()) {
|
|
if (multiplier.isNegative())
|
|
return this.negate().multiply(multiplier.negate());
|
|
else
|
|
return this.negate().multiply(multiplier).negate();
|
|
} else if (multiplier.isNegative())
|
|
return this.multiply(multiplier.negate()).negate();
|
|
|
|
// If both longs are small, use float multiplication
|
|
if (this.lessThan(TWO_PWR_24) && multiplier.lessThan(TWO_PWR_24))
|
|
return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
|
|
|
|
// Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
|
|
// We can skip products that would overflow.
|
|
|
|
var a48 = this.high >>> 16;
|
|
var a32 = this.high & 0xFFFF;
|
|
var a16 = this.low >>> 16;
|
|
var a00 = this.low & 0xFFFF;
|
|
|
|
var b48 = multiplier.high >>> 16;
|
|
var b32 = multiplier.high & 0xFFFF;
|
|
var b16 = multiplier.low >>> 16;
|
|
var b00 = multiplier.low & 0xFFFF;
|
|
|
|
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
|
|
c00 += a00 * b00;
|
|
c16 += c00 >>> 16;
|
|
c00 &= 0xFFFF;
|
|
c16 += a16 * b00;
|
|
c32 += c16 >>> 16;
|
|
c16 &= 0xFFFF;
|
|
c16 += a00 * b16;
|
|
c32 += c16 >>> 16;
|
|
c16 &= 0xFFFF;
|
|
c32 += a32 * b00;
|
|
c48 += c32 >>> 16;
|
|
c32 &= 0xFFFF;
|
|
c32 += a16 * b16;
|
|
c48 += c32 >>> 16;
|
|
c32 &= 0xFFFF;
|
|
c32 += a00 * b32;
|
|
c48 += c32 >>> 16;
|
|
c32 &= 0xFFFF;
|
|
c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
|
|
c48 &= 0xFFFF;
|
|
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long divided by the specified.
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Quotient
|
|
* @expose
|
|
*/
|
|
Long.prototype.div = function(divisor) {
|
|
if (!Long.isLong(divisor))
|
|
divisor = Long.fromValue(divisor);
|
|
if (divisor.isZero())
|
|
throw(new Error('division by zero'));
|
|
if (this.isZero())
|
|
return this.unsigned ? Long.UZERO : Long.ZERO;
|
|
var approx, rem, res;
|
|
if (this.equals(Long.MIN_VALUE)) {
|
|
if (divisor.equals(Long.ONE) || divisor.equals(Long.NEG_ONE))
|
|
return Long.MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE
|
|
else if (divisor.equals(Long.MIN_VALUE))
|
|
return Long.ONE;
|
|
else {
|
|
// At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
|
|
var halfThis = this.shiftRight(1);
|
|
approx = halfThis.div(divisor).shiftLeft(1);
|
|
if (approx.equals(Long.ZERO)) {
|
|
return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
|
|
} else {
|
|
rem = this.subtract(divisor.multiply(approx));
|
|
res = approx.add(rem.div(divisor));
|
|
return res;
|
|
}
|
|
}
|
|
} else if (divisor.equals(Long.MIN_VALUE))
|
|
return this.unsigned ? Long.UZERO : Long.ZERO;
|
|
if (this.isNegative()) {
|
|
if (divisor.isNegative())
|
|
return this.negate().div(divisor.negate());
|
|
return this.negate().div(divisor).negate();
|
|
} else if (divisor.isNegative())
|
|
return this.div(divisor.negate()).negate();
|
|
|
|
// Repeat the following until the remainder is less than other: find a
|
|
// floating-point that approximates remainder / other *from below*, add this
|
|
// into the result, and subtract it from the remainder. It is critical that
|
|
// the approximate value is less than or equal to the real value so that the
|
|
// remainder never becomes negative.
|
|
res = Long.ZERO;
|
|
rem = this;
|
|
while (rem.greaterThanOrEqual(divisor)) {
|
|
// Approximate the result of division. This may be a little greater or
|
|
// smaller than the actual value.
|
|
approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
|
|
|
|
// We will tweak the approximate result by changing it in the 48-th digit or
|
|
// the smallest non-fractional digit, whichever is larger.
|
|
var log2 = Math.ceil(Math.log(approx) / Math.LN2),
|
|
delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48),
|
|
|
|
// Decrease the approximation until it is smaller than the remainder. Note
|
|
// that if it is too large, the product overflows and is negative.
|
|
approxRes = Long.fromNumber(approx),
|
|
approxRem = approxRes.multiply(divisor);
|
|
while (approxRem.isNegative() || approxRem.greaterThan(rem)) {
|
|
approx -= delta;
|
|
approxRes = Long.fromNumber(approx, this.unsigned);
|
|
approxRem = approxRes.multiply(divisor);
|
|
}
|
|
|
|
// We know the answer can't be zero... and actually, zero would cause
|
|
// infinite recursion since we would make no progress.
|
|
if (approxRes.isZero())
|
|
approxRes = Long.ONE;
|
|
|
|
res = res.add(approxRes);
|
|
rem = rem.subtract(approxRem);
|
|
}
|
|
return res;
|
|
};
|
|
|
|
/**
|
|
* Returns this Long modulo the specified.
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Remainder
|
|
* @expose
|
|
*/
|
|
Long.prototype.modulo = function(divisor) {
|
|
if (!Long.isLong(divisor))
|
|
divisor = Long.fromValue(divisor);
|
|
return this.subtract(this.div(divisor).multiply(divisor));
|
|
};
|
|
|
|
/**
|
|
* Returns the bitwise NOT of this Long.
|
|
* @returns {!Long}
|
|
* @expose
|
|
*/
|
|
Long.prototype.not = function() {
|
|
return Long.fromBits(~this.low, ~this.high, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns the bitwise AND of this Long and the specified.
|
|
* @param {!Long|number|string} other Other Long
|
|
* @returns {!Long}
|
|
* @expose
|
|
*/
|
|
Long.prototype.and = function(other) {
|
|
if (!Long.isLong(other))
|
|
other = Long.fromValue(other);
|
|
return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns the bitwise OR of this Long and the specified.
|
|
* @param {!Long|number|string} other Other Long
|
|
* @returns {!Long}
|
|
* @expose
|
|
*/
|
|
Long.prototype.or = function(other) {
|
|
if (!Long.isLong(other))
|
|
other = Long.fromValue(other);
|
|
return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns the bitwise XOR of this Long and the given one.
|
|
* @param {!Long|number|string} other Other Long
|
|
* @returns {!Long}
|
|
* @expose
|
|
*/
|
|
Long.prototype.xor = function(other) {
|
|
if (!Long.isLong(other))
|
|
other = Long.fromValue(other);
|
|
return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits shifted to the left by the given amount.
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
* @expose
|
|
*/
|
|
Long.prototype.shiftLeft = function(numBits) {
|
|
if (Long.isLong(numBits))
|
|
numBits = numBits.toInt();
|
|
if ((numBits &= 63) === 0)
|
|
return this;
|
|
else if (numBits < 32)
|
|
return Long.fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
|
|
else
|
|
return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits arithmetically shifted to the right by the given amount.
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
* @expose
|
|
*/
|
|
Long.prototype.shiftRight = function(numBits) {
|
|
if (Long.isLong(numBits))
|
|
numBits = numBits.toInt();
|
|
if ((numBits &= 63) === 0)
|
|
return this;
|
|
else if (numBits < 32)
|
|
return Long.fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
|
|
else
|
|
return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits logically shifted to the right by the given amount.
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
* @expose
|
|
*/
|
|
Long.prototype.shiftRightUnsigned = function(numBits) {
|
|
if (Long.isLong(numBits))
|
|
numBits = numBits.toInt();
|
|
numBits &= 63;
|
|
if (numBits === 0)
|
|
return this;
|
|
else {
|
|
var high = this.high;
|
|
if (numBits < 32) {
|
|
var low = this.low;
|
|
return Long.fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
|
|
} else if (numBits === 32)
|
|
return Long.fromBits(high, 0, this.unsigned);
|
|
else
|
|
return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Converts this Long to signed.
|
|
* @returns {!Long} Signed long
|
|
* @expose
|
|
*/
|
|
Long.prototype.toSigned = function() {
|
|
if (!this.unsigned)
|
|
return this;
|
|
return new Long(this.low, this.high, false);
|
|
};
|
|
|
|
/**
|
|
* Converts this Long to unsigned.
|
|
* @returns {!Long} Unsigned long
|
|
* @expose
|
|
*/
|
|
Long.prototype.toUnsigned = function() {
|
|
if (this.unsigned)
|
|
return this;
|
|
return new Long(this.low, this.high, true);
|
|
};
|
|
|
|
/* CommonJS */ if (typeof require === 'function' && typeof module === 'object' && module && typeof exports === 'object' && exports)
|
|
module["exports"] = Long;
|
|
/* AMD */ else if (typeof define === 'function' && define["amd"])
|
|
define(function() { return Long; });
|
|
/* Global */ else
|
|
(global["dcodeIO"] = global["dcodeIO"] || {})["Long"] = Long;
|
|
|
|
})(this);
|