1208 lines
38 KiB
JavaScript
1208 lines
38 KiB
JavaScript
/*
|
|
Copyright 2013 Daniel Wirtz <dcode@dcode.io>
|
|
Copyright 2009 The Closure Library Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS-IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @license long.js (c) 2013 Daniel Wirtz <dcode@dcode.io>
|
|
* Released under the Apache License, Version 2.0
|
|
* see: https://github.com/dcodeIO/long.js for details
|
|
*/
|
|
(function(global, factory) {
|
|
/* AMD */ if (typeof define === 'function' && define["amd"])
|
|
define([], factory);
|
|
/* CommonJS */ else if (typeof require === 'function' && typeof module === "object" && module && module["exports"])
|
|
module["exports"] = factory();
|
|
/* Global */ else
|
|
(global["dcodeIO"] = global["dcodeIO"] || {})["Long"] = factory();
|
|
|
|
})(this, function() {
|
|
"use strict";
|
|
|
|
/**
|
|
* Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
|
|
* See the from* functions below for more convenient ways of constructing Longs.
|
|
* @exports Long
|
|
* @class A Long class for representing a 64 bit two's-complement integer value.
|
|
* @param {number} low The low (signed) 32 bits of the long
|
|
* @param {number} high The high (signed) 32 bits of the long
|
|
* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
|
|
* @constructor
|
|
*/
|
|
function Long(low, high, unsigned) {
|
|
|
|
/**
|
|
* The low 32 bits as a signed value.
|
|
* @type {number}
|
|
*/
|
|
this.low = low | 0;
|
|
|
|
/**
|
|
* The high 32 bits as a signed value.
|
|
* @type {number}
|
|
*/
|
|
this.high = high | 0;
|
|
|
|
/**
|
|
* Whether unsigned or not.
|
|
* @type {boolean}
|
|
*/
|
|
this.unsigned = !!unsigned;
|
|
}
|
|
|
|
// The internal representation of a long is the two given signed, 32-bit values.
|
|
// We use 32-bit pieces because these are the size of integers on which
|
|
// Javascript performs bit-operations. For operations like addition and
|
|
// multiplication, we split each number into 16 bit pieces, which can easily be
|
|
// multiplied within Javascript's floating-point representation without overflow
|
|
// or change in sign.
|
|
//
|
|
// In the algorithms below, we frequently reduce the negative case to the
|
|
// positive case by negating the input(s) and then post-processing the result.
|
|
// Note that we must ALWAYS check specially whether those values are MIN_VALUE
|
|
// (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
|
|
// a positive number, it overflows back into a negative). Not handling this
|
|
// case would often result in infinite recursion.
|
|
//
|
|
// Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the from*
|
|
// methods on which they depend.
|
|
|
|
/**
|
|
* An indicator used to reliably determine if an object is a Long or not.
|
|
* @type {boolean}
|
|
* @const
|
|
* @private
|
|
*/
|
|
Long.prototype.__isLong__;
|
|
|
|
Object.defineProperty(Long.prototype, "__isLong__", {
|
|
value: true,
|
|
enumerable: false,
|
|
configurable: false
|
|
});
|
|
|
|
/**
|
|
* @function
|
|
* @param {*} obj Object
|
|
* @returns {boolean}
|
|
* @inner
|
|
*/
|
|
function isLong(obj) {
|
|
return (obj && obj["__isLong__"]) === true;
|
|
}
|
|
|
|
/**
|
|
* Tests if the specified object is a Long.
|
|
* @function
|
|
* @param {*} obj Object
|
|
* @returns {boolean}
|
|
*/
|
|
Long.isLong = isLong;
|
|
|
|
/**
|
|
* A cache of the Long representations of small integer values.
|
|
* @type {!Object}
|
|
* @inner
|
|
*/
|
|
var INT_CACHE = {};
|
|
|
|
/**
|
|
* A cache of the Long representations of small unsigned integer values.
|
|
* @type {!Object}
|
|
* @inner
|
|
*/
|
|
var UINT_CACHE = {};
|
|
|
|
/**
|
|
* @param {number} value
|
|
* @param {boolean=} unsigned
|
|
* @returns {!Long}
|
|
* @inner
|
|
*/
|
|
function fromInt(value, unsigned) {
|
|
var obj, cachedObj, cache;
|
|
if (unsigned) {
|
|
value >>>= 0;
|
|
if (cache = (0 <= value && value < 256)) {
|
|
cachedObj = UINT_CACHE[value];
|
|
if (cachedObj)
|
|
return cachedObj;
|
|
}
|
|
obj = fromBits(value, (value | 0) < 0 ? -1 : 0, true);
|
|
if (cache)
|
|
UINT_CACHE[value] = obj;
|
|
return obj;
|
|
} else {
|
|
value |= 0;
|
|
if (cache = (-128 <= value && value < 128)) {
|
|
cachedObj = INT_CACHE[value];
|
|
if (cachedObj)
|
|
return cachedObj;
|
|
}
|
|
obj = fromBits(value, value < 0 ? -1 : 0, false);
|
|
if (cache)
|
|
INT_CACHE[value] = obj;
|
|
return obj;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a Long representing the given 32 bit integer value.
|
|
* @function
|
|
* @param {number} value The 32 bit integer in question
|
|
* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
|
|
* @returns {!Long} The corresponding Long value
|
|
*/
|
|
Long.fromInt = fromInt;
|
|
|
|
/**
|
|
* @param {number} value
|
|
* @param {boolean=} unsigned
|
|
* @returns {!Long}
|
|
* @inner
|
|
*/
|
|
function fromNumber(value, unsigned) {
|
|
if (isNaN(value) || !isFinite(value))
|
|
return unsigned ? UZERO : ZERO;
|
|
if (unsigned) {
|
|
if (value < 0)
|
|
return UZERO;
|
|
if (value >= TWO_PWR_64_DBL)
|
|
return MAX_UNSIGNED_VALUE;
|
|
} else {
|
|
if (value <= -TWO_PWR_63_DBL)
|
|
return MIN_VALUE;
|
|
if (value + 1 >= TWO_PWR_63_DBL)
|
|
return MAX_VALUE;
|
|
}
|
|
if (value < 0)
|
|
return fromNumber(-value, unsigned).neg();
|
|
return fromBits((value % TWO_PWR_32_DBL) | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
|
|
}
|
|
|
|
/**
|
|
* Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
|
|
* @function
|
|
* @param {number} value The number in question
|
|
* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
|
|
* @returns {!Long} The corresponding Long value
|
|
*/
|
|
Long.fromNumber = fromNumber;
|
|
|
|
/**
|
|
* @param {number} lowBits
|
|
* @param {number} highBits
|
|
* @param {boolean=} unsigned
|
|
* @returns {!Long}
|
|
* @inner
|
|
*/
|
|
function fromBits(lowBits, highBits, unsigned) {
|
|
return new Long(lowBits, highBits, unsigned);
|
|
}
|
|
|
|
/**
|
|
* Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits. Each is
|
|
* assumed to use 32 bits.
|
|
* @function
|
|
* @param {number} lowBits The low 32 bits
|
|
* @param {number} highBits The high 32 bits
|
|
* @param {boolean=} unsigned Whether unsigned or not, defaults to `false` for signed
|
|
* @returns {!Long} The corresponding Long value
|
|
*/
|
|
Long.fromBits = fromBits;
|
|
|
|
/**
|
|
* @function
|
|
* @param {number} base
|
|
* @param {number} exponent
|
|
* @returns {number}
|
|
* @inner
|
|
*/
|
|
var pow_dbl = Math.pow; // Used 4 times (4*8 to 15+4)
|
|
|
|
/**
|
|
* @param {string} str
|
|
* @param {(boolean|number)=} unsigned
|
|
* @param {number=} radix
|
|
* @returns {!Long}
|
|
* @inner
|
|
*/
|
|
function fromString(str, unsigned, radix) {
|
|
if (str.length === 0)
|
|
throw Error('empty string');
|
|
if (str === "NaN" || str === "Infinity" || str === "+Infinity" || str === "-Infinity")
|
|
return ZERO;
|
|
if (typeof unsigned === 'number') {
|
|
// For goog.math.long compatibility
|
|
radix = unsigned,
|
|
unsigned = false;
|
|
} else {
|
|
unsigned = !! unsigned;
|
|
}
|
|
radix = radix || 10;
|
|
if (radix < 2 || 36 < radix)
|
|
throw RangeError('radix');
|
|
|
|
var p;
|
|
if ((p = str.indexOf('-')) > 0)
|
|
throw Error('interior hyphen');
|
|
else if (p === 0) {
|
|
return fromString(str.substring(1), unsigned, radix).neg();
|
|
}
|
|
|
|
// Do several (8) digits each time through the loop, so as to
|
|
// minimize the calls to the very expensive emulated div.
|
|
var radixToPower = fromNumber(pow_dbl(radix, 8));
|
|
|
|
var result = ZERO;
|
|
for (var i = 0; i < str.length; i += 8) {
|
|
var size = Math.min(8, str.length - i),
|
|
value = parseInt(str.substring(i, i + size), radix);
|
|
if (size < 8) {
|
|
var power = fromNumber(pow_dbl(radix, size));
|
|
result = result.mul(power).add(fromNumber(value));
|
|
} else {
|
|
result = result.mul(radixToPower);
|
|
result = result.add(fromNumber(value));
|
|
}
|
|
}
|
|
result.unsigned = unsigned;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Returns a Long representation of the given string, written using the specified radix.
|
|
* @function
|
|
* @param {string} str The textual representation of the Long
|
|
* @param {(boolean|number)=} unsigned Whether unsigned or not, defaults to `false` for signed
|
|
* @param {number=} radix The radix in which the text is written (2-36), defaults to 10
|
|
* @returns {!Long} The corresponding Long value
|
|
*/
|
|
Long.fromString = fromString;
|
|
|
|
/**
|
|
* @function
|
|
* @param {!Long|number|string|!{low: number, high: number, unsigned: boolean}} val
|
|
* @returns {!Long}
|
|
* @inner
|
|
*/
|
|
function fromValue(val) {
|
|
if (val /* is compatible */ instanceof Long)
|
|
return val;
|
|
if (typeof val === 'number')
|
|
return fromNumber(val);
|
|
if (typeof val === 'string')
|
|
return fromString(val);
|
|
// Throws for non-objects, converts non-instanceof Long:
|
|
return fromBits(val.low, val.high, val.unsigned);
|
|
}
|
|
|
|
/**
|
|
* Converts the specified value to a Long.
|
|
* @function
|
|
* @param {!Long|number|string|!{low: number, high: number, unsigned: boolean}} val Value
|
|
* @returns {!Long}
|
|
*/
|
|
Long.fromValue = fromValue;
|
|
|
|
// NOTE: the compiler should inline these constant values below and then remove these variables, so there should be
|
|
// no runtime penalty for these.
|
|
|
|
/**
|
|
* @type {number}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_16_DBL = 1 << 16;
|
|
|
|
/**
|
|
* @type {number}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_24_DBL = 1 << 24;
|
|
|
|
/**
|
|
* @type {number}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
|
|
|
|
/**
|
|
* @type {number}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
|
|
|
|
/**
|
|
* @type {number}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @const
|
|
* @inner
|
|
*/
|
|
var TWO_PWR_24 = fromInt(TWO_PWR_24_DBL);
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var ZERO = fromInt(0);
|
|
|
|
/**
|
|
* Signed zero.
|
|
* @type {!Long}
|
|
*/
|
|
Long.ZERO = ZERO;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var UZERO = fromInt(0, true);
|
|
|
|
/**
|
|
* Unsigned zero.
|
|
* @type {!Long}
|
|
*/
|
|
Long.UZERO = UZERO;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var ONE = fromInt(1);
|
|
|
|
/**
|
|
* Signed one.
|
|
* @type {!Long}
|
|
*/
|
|
Long.ONE = ONE;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var UONE = fromInt(1, true);
|
|
|
|
/**
|
|
* Unsigned one.
|
|
* @type {!Long}
|
|
*/
|
|
Long.UONE = UONE;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var NEG_ONE = fromInt(-1);
|
|
|
|
/**
|
|
* Signed negative one.
|
|
* @type {!Long}
|
|
*/
|
|
Long.NEG_ONE = NEG_ONE;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var MAX_VALUE = fromBits(0xFFFFFFFF|0, 0x7FFFFFFF|0, false);
|
|
|
|
/**
|
|
* Maximum signed value.
|
|
* @type {!Long}
|
|
*/
|
|
Long.MAX_VALUE = MAX_VALUE;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var MAX_UNSIGNED_VALUE = fromBits(0xFFFFFFFF|0, 0xFFFFFFFF|0, true);
|
|
|
|
/**
|
|
* Maximum unsigned value.
|
|
* @type {!Long}
|
|
*/
|
|
Long.MAX_UNSIGNED_VALUE = MAX_UNSIGNED_VALUE;
|
|
|
|
/**
|
|
* @type {!Long}
|
|
* @inner
|
|
*/
|
|
var MIN_VALUE = fromBits(0, 0x80000000|0, false);
|
|
|
|
/**
|
|
* Minimum signed value.
|
|
* @type {!Long}
|
|
*/
|
|
Long.MIN_VALUE = MIN_VALUE;
|
|
|
|
/**
|
|
* @alias Long.prototype
|
|
* @inner
|
|
*/
|
|
var LongPrototype = Long.prototype;
|
|
|
|
/**
|
|
* Converts the Long to a 32 bit integer, assuming it is a 32 bit integer.
|
|
* @returns {number}
|
|
*/
|
|
LongPrototype.toInt = function toInt() {
|
|
return this.unsigned ? this.low >>> 0 : this.low;
|
|
};
|
|
|
|
/**
|
|
* Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa).
|
|
* @returns {number}
|
|
*/
|
|
LongPrototype.toNumber = function toNumber() {
|
|
if (this.unsigned)
|
|
return ((this.high >>> 0) * TWO_PWR_32_DBL) + (this.low >>> 0);
|
|
return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
|
|
};
|
|
|
|
/**
|
|
* Converts the Long to a string written in the specified radix.
|
|
* @param {number=} radix Radix (2-36), defaults to 10
|
|
* @returns {string}
|
|
* @override
|
|
* @throws {RangeError} If `radix` is out of range
|
|
*/
|
|
LongPrototype.toString = function toString(radix) {
|
|
radix = radix || 10;
|
|
if (radix < 2 || 36 < radix)
|
|
throw RangeError('radix');
|
|
if (this.isZero())
|
|
return '0';
|
|
if (this.isNegative()) { // Unsigned Longs are never negative
|
|
if (this.eq(MIN_VALUE)) {
|
|
// We need to change the Long value before it can be negated, so we remove
|
|
// the bottom-most digit in this base and then recurse to do the rest.
|
|
var radixLong = fromNumber(radix),
|
|
div = this.div(radixLong),
|
|
rem1 = div.mul(radixLong).sub(this);
|
|
return div.toString(radix) + rem1.toInt().toString(radix);
|
|
} else
|
|
return '-' + this.neg().toString(radix);
|
|
}
|
|
|
|
// Do several (6) digits each time through the loop, so as to
|
|
// minimize the calls to the very expensive emulated div.
|
|
var radixToPower = fromNumber(pow_dbl(radix, 6), this.unsigned),
|
|
rem = this;
|
|
var result = '';
|
|
while (true) {
|
|
var remDiv = rem.div(radixToPower),
|
|
intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0,
|
|
digits = intval.toString(radix);
|
|
rem = remDiv;
|
|
if (rem.isZero())
|
|
return digits + result;
|
|
else {
|
|
while (digits.length < 6)
|
|
digits = '0' + digits;
|
|
result = '' + digits + result;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Gets the high 32 bits as a signed integer.
|
|
* @returns {number} Signed high bits
|
|
*/
|
|
LongPrototype.getHighBits = function getHighBits() {
|
|
return this.high;
|
|
};
|
|
|
|
/**
|
|
* Gets the high 32 bits as an unsigned integer.
|
|
* @returns {number} Unsigned high bits
|
|
*/
|
|
LongPrototype.getHighBitsUnsigned = function getHighBitsUnsigned() {
|
|
return this.high >>> 0;
|
|
};
|
|
|
|
/**
|
|
* Gets the low 32 bits as a signed integer.
|
|
* @returns {number} Signed low bits
|
|
*/
|
|
LongPrototype.getLowBits = function getLowBits() {
|
|
return this.low;
|
|
};
|
|
|
|
/**
|
|
* Gets the low 32 bits as an unsigned integer.
|
|
* @returns {number} Unsigned low bits
|
|
*/
|
|
LongPrototype.getLowBitsUnsigned = function getLowBitsUnsigned() {
|
|
return this.low >>> 0;
|
|
};
|
|
|
|
/**
|
|
* Gets the number of bits needed to represent the absolute value of this Long.
|
|
* @returns {number}
|
|
*/
|
|
LongPrototype.getNumBitsAbs = function getNumBitsAbs() {
|
|
if (this.isNegative()) // Unsigned Longs are never negative
|
|
return this.eq(MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
|
|
var val = this.high != 0 ? this.high : this.low;
|
|
for (var bit = 31; bit > 0; bit--)
|
|
if ((val & (1 << bit)) != 0)
|
|
break;
|
|
return this.high != 0 ? bit + 33 : bit + 1;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value equals zero.
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.isZero = function isZero() {
|
|
return this.high === 0 && this.low === 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is negative.
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.isNegative = function isNegative() {
|
|
return !this.unsigned && this.high < 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is positive.
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.isPositive = function isPositive() {
|
|
return this.unsigned || this.high >= 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is odd.
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.isOdd = function isOdd() {
|
|
return (this.low & 1) === 1;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is even.
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.isEven = function isEven() {
|
|
return (this.low & 1) === 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value equals the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.equals = function equals(other) {
|
|
if (!isLong(other))
|
|
other = fromValue(other);
|
|
if (this.unsigned !== other.unsigned && (this.high >>> 31) === 1 && (other.high >>> 31) === 1)
|
|
return false;
|
|
return this.high === other.high && this.low === other.low;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value equals the specified's. This is an alias of {@link Long#equals}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.eq = LongPrototype.equals;
|
|
|
|
/**
|
|
* Tests if this Long's value differs from the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.notEquals = function notEquals(other) {
|
|
return !this.eq(/* validates */ other);
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value differs from the specified's. This is an alias of {@link Long#notEquals}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.neq = LongPrototype.notEquals;
|
|
|
|
/**
|
|
* Tests if this Long's value is less than the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.lessThan = function lessThan(other) {
|
|
return this.comp(/* validates */ other) < 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is less than the specified's. This is an alias of {@link Long#lessThan}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.lt = LongPrototype.lessThan;
|
|
|
|
/**
|
|
* Tests if this Long's value is less than or equal the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.lessThanOrEqual = function lessThanOrEqual(other) {
|
|
return this.comp(/* validates */ other) <= 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is less than or equal the specified's. This is an alias of {@link Long#lessThanOrEqual}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.lte = LongPrototype.lessThanOrEqual;
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.greaterThan = function greaterThan(other) {
|
|
return this.comp(/* validates */ other) > 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than the specified's. This is an alias of {@link Long#greaterThan}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.gt = LongPrototype.greaterThan;
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than or equal the specified's.
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.greaterThanOrEqual = function greaterThanOrEqual(other) {
|
|
return this.comp(/* validates */ other) >= 0;
|
|
};
|
|
|
|
/**
|
|
* Tests if this Long's value is greater than or equal the specified's. This is an alias of {@link Long#greaterThanOrEqual}.
|
|
* @function
|
|
* @param {!Long|number|string} other Other value
|
|
* @returns {boolean}
|
|
*/
|
|
LongPrototype.gte = LongPrototype.greaterThanOrEqual;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
LongPrototype.compare = function compare(other) {
|
|
if (!isLong(other))
|
|
other = fromValue(other);
|
|
if (this.eq(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.sub(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;
|
|
};
|
|
|
|
/**
|
|
* Compares this Long's value with the specified's. This is an alias of {@link Long#compare}.
|
|
* @function
|
|
* @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
|
|
*/
|
|
LongPrototype.comp = LongPrototype.compare;
|
|
|
|
/**
|
|
* Negates this Long's value.
|
|
* @returns {!Long} Negated Long
|
|
*/
|
|
LongPrototype.negate = function negate() {
|
|
if (!this.unsigned && this.eq(MIN_VALUE))
|
|
return MIN_VALUE;
|
|
return this.not().add(ONE);
|
|
};
|
|
|
|
/**
|
|
* Negates this Long's value. This is an alias of {@link Long#negate}.
|
|
* @function
|
|
* @returns {!Long} Negated Long
|
|
*/
|
|
LongPrototype.neg = LongPrototype.negate;
|
|
|
|
/**
|
|
* Returns the sum of this and the specified Long.
|
|
* @param {!Long|number|string} addend Addend
|
|
* @returns {!Long} Sum
|
|
*/
|
|
LongPrototype.add = function add(addend) {
|
|
if (!isLong(addend))
|
|
addend = 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 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
|
|
*/
|
|
LongPrototype.subtract = function subtract(subtrahend) {
|
|
if (!isLong(subtrahend))
|
|
subtrahend = fromValue(subtrahend);
|
|
return this.add(subtrahend.neg());
|
|
};
|
|
|
|
/**
|
|
* Returns the difference of this and the specified Long. This is an alias of {@link Long#subtract}.
|
|
* @function
|
|
* @param {!Long|number|string} subtrahend Subtrahend
|
|
* @returns {!Long} Difference
|
|
*/
|
|
LongPrototype.sub = LongPrototype.subtract;
|
|
|
|
/**
|
|
* Returns the product of this and the specified Long.
|
|
* @param {!Long|number|string} multiplier Multiplier
|
|
* @returns {!Long} Product
|
|
*/
|
|
LongPrototype.multiply = function multiply(multiplier) {
|
|
if (this.isZero())
|
|
return ZERO;
|
|
if (!isLong(multiplier))
|
|
multiplier = fromValue(multiplier);
|
|
if (multiplier.isZero())
|
|
return ZERO;
|
|
if (this.eq(MIN_VALUE))
|
|
return multiplier.isOdd() ? MIN_VALUE : ZERO;
|
|
if (multiplier.eq(MIN_VALUE))
|
|
return this.isOdd() ? MIN_VALUE : ZERO;
|
|
|
|
if (this.isNegative()) {
|
|
if (multiplier.isNegative())
|
|
return this.neg().mul(multiplier.neg());
|
|
else
|
|
return this.neg().mul(multiplier).neg();
|
|
} else if (multiplier.isNegative())
|
|
return this.mul(multiplier.neg()).neg();
|
|
|
|
// If both longs are small, use float multiplication
|
|
if (this.lt(TWO_PWR_24) && multiplier.lt(TWO_PWR_24))
|
|
return 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 fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns the product of this and the specified Long. This is an alias of {@link Long#multiply}.
|
|
* @function
|
|
* @param {!Long|number|string} multiplier Multiplier
|
|
* @returns {!Long} Product
|
|
*/
|
|
LongPrototype.mul = LongPrototype.multiply;
|
|
|
|
/**
|
|
* Returns this Long divided by the specified. The result is signed if this Long is signed or
|
|
* unsigned if this Long is unsigned.
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Quotient
|
|
*/
|
|
LongPrototype.divide = function divide(divisor) {
|
|
if (!isLong(divisor))
|
|
divisor = fromValue(divisor);
|
|
if (divisor.isZero())
|
|
throw Error('division by zero');
|
|
if (this.isZero())
|
|
return this.unsigned ? UZERO : ZERO;
|
|
var approx, rem, res;
|
|
if (!this.unsigned) {
|
|
// This section is only relevant for signed longs and is derived from the
|
|
// closure library as a whole.
|
|
if (this.eq(MIN_VALUE)) {
|
|
if (divisor.eq(ONE) || divisor.eq(NEG_ONE))
|
|
return MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE
|
|
else if (divisor.eq(MIN_VALUE))
|
|
return ONE;
|
|
else {
|
|
// At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
|
|
var halfThis = this.shr(1);
|
|
approx = halfThis.div(divisor).shl(1);
|
|
if (approx.eq(ZERO)) {
|
|
return divisor.isNegative() ? ONE : NEG_ONE;
|
|
} else {
|
|
rem = this.sub(divisor.mul(approx));
|
|
res = approx.add(rem.div(divisor));
|
|
return res;
|
|
}
|
|
}
|
|
} else if (divisor.eq(MIN_VALUE))
|
|
return this.unsigned ? UZERO : ZERO;
|
|
if (this.isNegative()) {
|
|
if (divisor.isNegative())
|
|
return this.neg().div(divisor.neg());
|
|
return this.neg().div(divisor).neg();
|
|
} else if (divisor.isNegative())
|
|
return this.div(divisor.neg()).neg();
|
|
res = ZERO;
|
|
} else {
|
|
// The algorithm below has not been made for unsigned longs. It's therefore
|
|
// required to take special care of the MSB prior to running it.
|
|
if (!divisor.unsigned)
|
|
divisor = divisor.toUnsigned();
|
|
if (divisor.gt(this))
|
|
return UZERO;
|
|
if (divisor.gt(this.shru(1))) // 15 >>> 1 = 7 ; with divisor = 8 ; true
|
|
return UONE;
|
|
res = UZERO;
|
|
}
|
|
|
|
// 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.
|
|
rem = this;
|
|
while (rem.gte(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 : pow_dbl(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 = fromNumber(approx),
|
|
approxRem = approxRes.mul(divisor);
|
|
while (approxRem.isNegative() || approxRem.gt(rem)) {
|
|
approx -= delta;
|
|
approxRes = fromNumber(approx, this.unsigned);
|
|
approxRem = approxRes.mul(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 = ONE;
|
|
|
|
res = res.add(approxRes);
|
|
rem = rem.sub(approxRem);
|
|
}
|
|
return res;
|
|
};
|
|
|
|
/**
|
|
* Returns this Long divided by the specified. This is an alias of {@link Long#divide}.
|
|
* @function
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Quotient
|
|
*/
|
|
LongPrototype.div = LongPrototype.divide;
|
|
|
|
/**
|
|
* Returns this Long modulo the specified.
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Remainder
|
|
*/
|
|
LongPrototype.modulo = function modulo(divisor) {
|
|
if (!isLong(divisor))
|
|
divisor = fromValue(divisor);
|
|
return this.sub(this.div(divisor).mul(divisor));
|
|
};
|
|
|
|
/**
|
|
* Returns this Long modulo the specified. This is an alias of {@link Long#modulo}.
|
|
* @function
|
|
* @param {!Long|number|string} divisor Divisor
|
|
* @returns {!Long} Remainder
|
|
*/
|
|
LongPrototype.mod = LongPrototype.modulo;
|
|
|
|
/**
|
|
* Returns the bitwise NOT of this Long.
|
|
* @returns {!Long}
|
|
*/
|
|
LongPrototype.not = function not() {
|
|
return 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}
|
|
*/
|
|
LongPrototype.and = function and(other) {
|
|
if (!isLong(other))
|
|
other = fromValue(other);
|
|
return 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}
|
|
*/
|
|
LongPrototype.or = function or(other) {
|
|
if (!isLong(other))
|
|
other = fromValue(other);
|
|
return 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}
|
|
*/
|
|
LongPrototype.xor = function xor(other) {
|
|
if (!isLong(other))
|
|
other = fromValue(other);
|
|
return 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
|
|
*/
|
|
LongPrototype.shiftLeft = function shiftLeft(numBits) {
|
|
if (isLong(numBits))
|
|
numBits = numBits.toInt();
|
|
if ((numBits &= 63) === 0)
|
|
return this;
|
|
else if (numBits < 32)
|
|
return fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
|
|
else
|
|
return fromBits(0, this.low << (numBits - 32), this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits shifted to the left by the given amount. This is an alias of {@link Long#shiftLeft}.
|
|
* @function
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
*/
|
|
LongPrototype.shl = LongPrototype.shiftLeft;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
LongPrototype.shiftRight = function shiftRight(numBits) {
|
|
if (isLong(numBits))
|
|
numBits = numBits.toInt();
|
|
if ((numBits &= 63) === 0)
|
|
return this;
|
|
else if (numBits < 32)
|
|
return fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
|
|
else
|
|
return fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits arithmetically shifted to the right by the given amount. This is an alias of {@link Long#shiftRight}.
|
|
* @function
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
*/
|
|
LongPrototype.shr = LongPrototype.shiftRight;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
LongPrototype.shiftRightUnsigned = function shiftRightUnsigned(numBits) {
|
|
if (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 fromBits((low >>> numBits) | (high << (32 - numBits)), high >>> numBits, this.unsigned);
|
|
} else if (numBits === 32)
|
|
return fromBits(high, 0, this.unsigned);
|
|
else
|
|
return fromBits(high >>> (numBits - 32), 0, this.unsigned);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Returns this Long with bits logically shifted to the right by the given amount. This is an alias of {@link Long#shiftRightUnsigned}.
|
|
* @function
|
|
* @param {number|!Long} numBits Number of bits
|
|
* @returns {!Long} Shifted Long
|
|
*/
|
|
LongPrototype.shru = LongPrototype.shiftRightUnsigned;
|
|
|
|
/**
|
|
* Converts this Long to signed.
|
|
* @returns {!Long} Signed long
|
|
*/
|
|
LongPrototype.toSigned = function toSigned() {
|
|
if (!this.unsigned)
|
|
return this;
|
|
return fromBits(this.low, this.high, false);
|
|
};
|
|
|
|
/**
|
|
* Converts this Long to unsigned.
|
|
* @returns {!Long} Unsigned long
|
|
*/
|
|
LongPrototype.toUnsigned = function toUnsigned() {
|
|
if (this.unsigned)
|
|
return this;
|
|
return fromBits(this.low, this.high, true);
|
|
};
|
|
|
|
/**
|
|
* Converts this Long to its byte representation.
|
|
* @param {boolean=} le Whether little or big endian, defaults to big endian
|
|
* @returns {!Array.<number>} Byte representation
|
|
*/
|
|
LongPrototype.toBytes = function(le) {
|
|
return le ? this.toBytesLE() : this.toBytesBE();
|
|
}
|
|
|
|
/**
|
|
* Converts this Long to its little endian byte representation.
|
|
* @returns {!Array.<number>} Little endian byte representation
|
|
*/
|
|
LongPrototype.toBytesLE = function() {
|
|
var hi = this.high,
|
|
lo = this.low;
|
|
return [
|
|
lo & 0xff,
|
|
(lo >>> 8) & 0xff,
|
|
(lo >>> 16) & 0xff,
|
|
(lo >>> 24) & 0xff,
|
|
hi & 0xff,
|
|
(hi >>> 8) & 0xff,
|
|
(hi >>> 16) & 0xff,
|
|
(hi >>> 24) & 0xff
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Converts this Long to its big endian byte representation.
|
|
* @returns {!Array.<number>} Big endian byte representation
|
|
*/
|
|
LongPrototype.toBytesBE = function() {
|
|
var hi = this.high,
|
|
lo = this.low;
|
|
return [
|
|
(hi >>> 24) & 0xff,
|
|
(hi >>> 16) & 0xff,
|
|
(hi >>> 8) & 0xff,
|
|
hi & 0xff,
|
|
(lo >>> 24) & 0xff,
|
|
(lo >>> 16) & 0xff,
|
|
(lo >>> 8) & 0xff,
|
|
lo & 0xff
|
|
];
|
|
}
|
|
return Long;
|
|
});
|