11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2011 The Guava Authors 31d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 41d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 51d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * in compliance with the License. You may obtain a copy of the License at 61d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 71d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * http://www.apache.org/licenses/LICENSE-2.0 81d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 91d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unless required by applicable law or agreed to in writing, software distributed under the 101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * express or implied. See the License for the specific language governing permissions and 121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * limitations under the License. 131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpackage com.google.common.primitives; 161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkArgument; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkNotNull; 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.io.Serializable; 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.math.BigInteger; 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport javax.annotation.Nullable; 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.annotations.Beta; 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.annotations.GwtCompatible; 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * A wrapper class for unsigned {@code long} values, supporting arithmetic operations. 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p>In some cases, when speed is more important than code readability, it may be faster simply to 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * treat primitive {@code long} values as unsigned, using the methods from {@link UnsignedLongs}. 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p><b>Please do not extend this class; it will be made final in the near future.</b> 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Louis Wasserman 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Colin Evans 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 11.0 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert@Beta 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert@GwtCompatible(serializable = true) 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpublic class UnsignedLong extends Number implements Comparable<UnsignedLong>, Serializable { 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // TODO(user): make final as soon as util.UnsignedLong is migrated over 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static final long UNSIGNED_MASK = 0x7fffffffffffffffL; 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static final UnsignedLong ZERO = new UnsignedLong(0); 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static final UnsignedLong ONE = new UnsignedLong(1); 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static final UnsignedLong MAX_VALUE = new UnsignedLong(-1L); 501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private final long value; 521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert protected UnsignedLong(long value) { 541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert this.value = value; 551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns an {@code UnsignedLong} that, when treated as signed, is equal to {@code value}. The 591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * inverse operation is {@link #longValue()}. 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p>Put another way, if {@code value} is negative, the returned result will be equal to 621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@code 2^64 + value}; otherwise, the returned result will be equal to {@code value}. 631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static UnsignedLong asUnsigned(long value) { 651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return new UnsignedLong(value); 661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns a {@code UnsignedLong} representing the same value as the specified {@code BigInteger} 701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * . This is the inverse operation of {@link #bigIntegerValue()}. 711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @throws IllegalArgumentException if {@code value} is negative or {@code value >= 2^64} 731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static UnsignedLong valueOf(BigInteger value) { 751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(value); 761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkArgument(value.signum() >= 0 && value.bitLength() <= Long.SIZE, 771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert "value (%s) is outside the range for an unsigned long value", value); 781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(value.longValue()); 791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns an {@code UnsignedLong} holding the value of the specified {@code String}, parsed as 831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * an unsigned {@code long} value. 841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @throws NumberFormatException if the string does not contain a parsable unsigned {@code long} 861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * value 871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static UnsignedLong valueOf(String string) { 891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return valueOf(string, 10); 901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns an {@code UnsignedLong} holding the value of the specified {@code String}, parsed as 941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * an unsigned {@code long} value in the specified radix. 951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @throws NumberFormatException if the string does not contain a parsable unsigned {@code long} 971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * value, or {@code radix} is not between {@link Character#MIN_RADIX} and 981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@link Character#MAX_RADIX} 991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static UnsignedLong valueOf(String string, int radix) { 1011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(UnsignedLongs.parseUnsignedLong(string, radix)); 1021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the result of adding this and {@code val}. If the result would have more than 64 bits, 1061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * returns the low 64 bits of the result. 1071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public UnsignedLong add(UnsignedLong val) { 1091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(val); 1101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(this.value + val.value); 1111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the result of subtracting this and {@code val}. If the result would be negative, 1151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * returns the low 64 bits of the result. 1161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public UnsignedLong subtract(UnsignedLong val) { 1181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(val); 1191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(this.value - val.value); 1201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the result of multiplying this and {@code val}. If the result would have more than 64 1241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * bits, returns the low 64 bits of the result. 1251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public UnsignedLong multiply(UnsignedLong val) { 1271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(val); 1281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(value * val.value); 1291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the result of dividing this by {@code val}. 1331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public UnsignedLong divide(UnsignedLong val) { 1351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(val); 1361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(UnsignedLongs.divide(value, val.value)); 1371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the remainder of dividing this by {@code val}. 1411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public UnsignedLong remainder(UnsignedLong val) { 1431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(val); 1441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return asUnsigned(UnsignedLongs.remainder(value, val.value)); 1451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the value of this {@code UnsignedLong} as an {@code int}. 1491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 1511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public int intValue() { 1521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return (int) value; 1531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the value of this {@code UnsignedLong} as a {@code long}. This is an inverse operation 1571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * to {@link #asUnsigned}. 1581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 1591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p>Note that if this {@code UnsignedLong} holds a value {@code >= 2^63}, the returned value 1601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * will be equal to {@code this - 2^64}. 1611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 1631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public long longValue() { 1641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return value; 1651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the value of this {@code UnsignedLong} as a {@code float}, analogous to a widening 1691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * primitive conversion from {@code long} to {@code float}, and correctly rounded. 1701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 1721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public float floatValue() { 1731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @SuppressWarnings("cast") 1741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert float fValue = (float) (value & UNSIGNED_MASK); 1751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert if (value < 0) { 1761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fValue += 0x1.0p63f; 1771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return fValue; 1791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the value of this {@code UnsignedLong} as a {@code double}, analogous to a widening 1831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * primitive conversion from {@code long} to {@code double}, and correctly rounded. 1841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 1861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public double doubleValue() { 1871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @SuppressWarnings("cast") 1881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert double dValue = (double) (value & UNSIGNED_MASK); 1891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert if (value < 0) { 1901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert dValue += 0x1.0p63; 1911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return dValue; 1931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 1961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the value of this {@code UnsignedLong} as a {@link BigInteger}. 1971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 1981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public BigInteger bigIntegerValue() { 1991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert BigInteger bigInt = BigInteger.valueOf(value & UNSIGNED_MASK); 2001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert if (value < 0) { 2011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert bigInt = bigInt.setBit(Long.SIZE - 1); 2021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return bigInt; 2041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 2071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public int compareTo(UnsignedLong o) { 2081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert checkNotNull(o); 2091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return UnsignedLongs.compare(value, o.value); 2101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 2131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public int hashCode() { 2141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return Longs.hashCode(value); 2151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 2181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public boolean equals(@Nullable Object obj) { 2191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert if (obj instanceof UnsignedLong) { 2201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert UnsignedLong other = (UnsignedLong) obj; 2211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return value == other.value; 2221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return false; 2241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 2271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns a string representation of the {@code UnsignedLong} value, in base 10. 2281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 2291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 2301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public String toString() { 2311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return UnsignedLongs.toString(value); 2321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 2351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns a string representation of the {@code UnsignedLong} value, in base {@code radix}. If 2361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@code radix < Character.MIN_RADIX} or {@code radix > Character.MAX_RADIX}, the radix 2371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@code 10} is used. 2381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 2391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public String toString(int radix) { 2401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return UnsignedLongs.toString(value, radix); 2411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 243