author | psandoz |
Tue, 08 Oct 2013 11:17:15 +0200 | |
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/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* This file is available under and governed by the GNU General Public |
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* License version 2 only, as published by the Free Software Foundation. |
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* However, the following notice accompanied the original version of this |
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* file: |
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* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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package java.util.concurrent; |
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import java.io.ObjectStreamField; |
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import java.net.NetworkInterface; |
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import java.util.Enumeration; |
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import java.util.Random; |
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import java.util.Spliterator; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicLong; |
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import java.util.function.DoubleConsumer; |
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import java.util.function.IntConsumer; |
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import java.util.function.LongConsumer; |
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import java.util.stream.DoubleStream; |
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import java.util.stream.IntStream; |
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import java.util.stream.LongStream; |
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import java.util.stream.StreamSupport; |
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/** |
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* A random number generator isolated to the current thread. Like the |
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* global {@link java.util.Random} generator used by the {@link |
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* java.lang.Math} class, a {@code ThreadLocalRandom} is initialized |
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* with an internally generated seed that may not otherwise be |
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* modified. When applicable, use of {@code ThreadLocalRandom} rather |
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* than shared {@code Random} objects in concurrent programs will |
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* typically encounter much less overhead and contention. Use of |
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* {@code ThreadLocalRandom} is particularly appropriate when multiple |
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* tasks (for example, each a {@link ForkJoinTask}) use random numbers |
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* in parallel in thread pools. |
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* |
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* <p>Usages of this class should typically be of the form: |
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* {@code ThreadLocalRandom.current().nextX(...)} (where |
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* {@code X} is {@code Int}, {@code Long}, etc). |
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* When all usages are of this form, it is never possible to |
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* accidently share a {@code ThreadLocalRandom} across multiple threads. |
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* |
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* <p>This class also provides additional commonly used bounded random |
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* generation methods. |
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* |
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* <p>Instances of {@code ThreadLocalRandom} are not cryptographically |
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* secure. Consider instead using {@link java.security.SecureRandom} |
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* in security-sensitive applications. Additionally, |
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* default-constructed instances do not use a cryptographically random |
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* seed unless the {@linkplain System#getProperty system property} |
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* {@code java.util.secureRandomSeed} is set to {@code true}. |
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* |
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* @since 1.7 |
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* @author Doug Lea |
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*/ |
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public class ThreadLocalRandom extends Random { |
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/* |
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* This class implements the java.util.Random API (and subclasses |
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* Random) using a single static instance that accesses random |
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* number state held in class Thread (primarily, field |
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* threadLocalRandomSeed). In doing so, it also provides a home |
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* for managing package-private utilities that rely on exactly the |
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* same state as needed to maintain the ThreadLocalRandom |
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* instances. We leverage the need for an initialization flag |
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* field to also use it as a "probe" -- a self-adjusting thread |
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* hash used for contention avoidance, as well as a secondary |
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* simpler (xorShift) random seed that is conservatively used to |
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* avoid otherwise surprising users by hijacking the |
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* ThreadLocalRandom sequence. The dual use is a marriage of |
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* convenience, but is a simple and efficient way of reducing |
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* application-level overhead and footprint of most concurrent |
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* programs. |
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* |
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* Even though this class subclasses java.util.Random, it uses the |
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* same basic algorithm as java.util.SplittableRandom. (See its |
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* internal documentation for explanations, which are not repeated |
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* here.) Because ThreadLocalRandoms are not splittable |
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* though, we use only a single 64bit gamma. |
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* |
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* Because this class is in a different package than class Thread, |
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* field access methods use Unsafe to bypass access control rules. |
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* To conform to the requirements of the Random superclass |
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* constructor, the common static ThreadLocalRandom maintains an |
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* "initialized" field for the sake of rejecting user calls to |
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* setSeed while still allowing a call from constructor. Note |
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* that serialization is completely unnecessary because there is |
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* only a static singleton. But we generate a serial form |
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* containing "rnd" and "initialized" fields to ensure |
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* compatibility across versions. |
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* |
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* Implementations of non-core methods are mostly the same as in |
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* SplittableRandom, that were in part derived from a previous |
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* version of this class. |
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* |
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* The nextLocalGaussian ThreadLocal supports the very rarely used |
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* nextGaussian method by providing a holder for the second of a |
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* pair of them. As is true for the base class version of this |
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* method, this time/space tradeoff is probably never worthwhile, |
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* but we provide identical statistical properties. |
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*/ |
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|
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/** Generates per-thread initialization/probe field */ |
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private static final AtomicInteger probeGenerator = |
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new AtomicInteger(); |
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/** |
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* The next seed for default constructors. |
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*/ |
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private static final AtomicLong seeder = new AtomicLong(initialSeed()); |
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|
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private static long initialSeed() { |
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String pp = java.security.AccessController.doPrivileged( |
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new sun.security.action.GetPropertyAction( |
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"java.util.secureRandomSeed")); |
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if (pp != null && pp.equalsIgnoreCase("true")) { |
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byte[] seedBytes = java.security.SecureRandom.getSeed(8); |
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long s = (long)(seedBytes[0]) & 0xffL; |
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for (int i = 1; i < 8; ++i) |
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s = (s << 8) | ((long)(seedBytes[i]) & 0xffL); |
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return s; |
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} |
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long h = 0L; |
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try { |
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Enumeration<NetworkInterface> ifcs = |
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NetworkInterface.getNetworkInterfaces(); |
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boolean retry = false; // retry once if getHardwareAddress is null |
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while (ifcs.hasMoreElements()) { |
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NetworkInterface ifc = ifcs.nextElement(); |
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if (!ifc.isVirtual()) { // skip fake addresses |
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byte[] bs = ifc.getHardwareAddress(); |
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if (bs != null) { |
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int n = bs.length; |
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int m = Math.min(n >>> 1, 4); |
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for (int i = 0; i < m; ++i) |
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h = (h << 16) ^ (bs[i] << 8) ^ bs[n-1-i]; |
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if (m < 4) |
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h = (h << 8) ^ bs[n-1-m]; |
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h = mix64(h); |
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167 |
break; |
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168 |
} |
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else if (!retry) |
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retry = true; |
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171 |
else |
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172 |
break; |
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173 |
} |
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174 |
} |
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} catch (Exception ignore) { |
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} |
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return (h ^ mix64(System.currentTimeMillis()) ^ |
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mix64(System.nanoTime())); |
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} |
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|
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/** |
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* The seed increment |
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*/ |
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private static final long GAMMA = 0x9e3779b97f4a7c15L; |
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|
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/** |
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* The increment for generating probe values |
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*/ |
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private static final int PROBE_INCREMENT = 0x9e3779b9; |
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|
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191 |
/** |
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* The increment of seeder per new instance |
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*/ |
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private static final long SEEDER_INCREMENT = 0xbb67ae8584caa73bL; |
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195 |
|
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// Constants from SplittableRandom |
20540 | 197 |
private static final double DOUBLE_UNIT = 0x1.0p-53; // 1.0 / (1L << 53) |
198 |
private static final float FLOAT_UNIT = 0x1.0p-24f; // 1.0f / (1 << 24) |
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199 |
|
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/** Rarely-used holder for the second of a pair of Gaussians */ |
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private static final ThreadLocal<Double> nextLocalGaussian = |
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new ThreadLocal<Double>(); |
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private static long mix64(long z) { |
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z = (z ^ (z >>> 33)) * 0xff51afd7ed558ccdL; |
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z = (z ^ (z >>> 33)) * 0xc4ceb9fe1a85ec53L; |
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return z ^ (z >>> 33); |
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208 |
} |
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209 |
|
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210 |
private static int mix32(long z) { |
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z = (z ^ (z >>> 33)) * 0xff51afd7ed558ccdL; |
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return (int)(((z ^ (z >>> 33)) * 0xc4ceb9fe1a85ec53L) >>> 32); |
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} |
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214 |
|
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215 |
/** |
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* Field used only during singleton initialization. |
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* True when constructor completes. |
4110 | 218 |
*/ |
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boolean initialized; |
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220 |
|
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/** Constructor used only for static singleton */ |
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222 |
private ThreadLocalRandom() { |
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initialized = true; // false during super() call |
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} |
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225 |
|
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226 |
/** The common ThreadLocalRandom */ |
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227 |
static final ThreadLocalRandom instance = new ThreadLocalRandom(); |
4110 | 228 |
|
229 |
/** |
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230 |
* Initialize Thread fields for the current thread. Called only |
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231 |
* when Thread.threadLocalRandomProbe is zero, indicating that a |
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* thread local seed value needs to be generated. Note that even |
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* though the initialization is purely thread-local, we need to |
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234 |
* rely on (static) atomic generators to initialize the values. |
4110 | 235 |
*/ |
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236 |
static final void localInit() { |
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int p = probeGenerator.addAndGet(PROBE_INCREMENT); |
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int probe = (p == 0) ? 1 : p; // skip 0 |
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239 |
long seed = mix64(seeder.getAndAdd(SEEDER_INCREMENT)); |
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Thread t = Thread.currentThread(); |
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241 |
UNSAFE.putLong(t, SEED, seed); |
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242 |
UNSAFE.putInt(t, PROBE, probe); |
4110 | 243 |
} |
244 |
||
245 |
/** |
|
246 |
* Returns the current thread's {@code ThreadLocalRandom}. |
|
247 |
* |
|
248 |
* @return the current thread's {@code ThreadLocalRandom} |
|
249 |
*/ |
|
250 |
public static ThreadLocalRandom current() { |
|
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251 |
if (UNSAFE.getInt(Thread.currentThread(), PROBE) == 0) |
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252 |
localInit(); |
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253 |
return instance; |
4110 | 254 |
} |
255 |
||
256 |
/** |
|
257 |
* Throws {@code UnsupportedOperationException}. Setting seeds in |
|
258 |
* this generator is not supported. |
|
259 |
* |
|
260 |
* @throws UnsupportedOperationException always |
|
261 |
*/ |
|
262 |
public void setSeed(long seed) { |
|
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263 |
// only allow call from super() constructor |
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264 |
if (initialized) |
4110 | 265 |
throw new UnsupportedOperationException(); |
266 |
} |
|
267 |
||
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268 |
final long nextSeed() { |
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269 |
Thread t; long r; // read and update per-thread seed |
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270 |
UNSAFE.putLong(t = Thread.currentThread(), SEED, |
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271 |
r = UNSAFE.getLong(t, SEED) + GAMMA); |
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272 |
return r; |
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273 |
} |
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274 |
|
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275 |
// We must define this, but never use it. |
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276 |
protected int next(int bits) { |
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277 |
return (int)(mix64(nextSeed()) >>> (64 - bits)); |
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278 |
} |
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279 |
|
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280 |
// IllegalArgumentException messages |
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281 |
static final String BadBound = "bound must be positive"; |
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282 |
static final String BadRange = "bound must be greater than origin"; |
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283 |
static final String BadSize = "size must be non-negative"; |
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284 |
|
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285 |
/** |
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286 |
* The form of nextLong used by LongStream Spliterators. If |
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287 |
* origin is greater than bound, acts as unbounded form of |
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288 |
* nextLong, else as bounded form. |
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289 |
* |
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290 |
* @param origin the least value, unless greater than bound |
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291 |
* @param bound the upper bound (exclusive), must not equal origin |
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292 |
* @return a pseudorandom value |
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293 |
*/ |
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294 |
final long internalNextLong(long origin, long bound) { |
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295 |
long r = mix64(nextSeed()); |
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296 |
if (origin < bound) { |
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297 |
long n = bound - origin, m = n - 1; |
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298 |
if ((n & m) == 0L) // power of two |
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299 |
r = (r & m) + origin; |
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300 |
else if (n > 0L) { // reject over-represented candidates |
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301 |
for (long u = r >>> 1; // ensure nonnegative |
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302 |
u + m - (r = u % n) < 0L; // rejection check |
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303 |
u = mix64(nextSeed()) >>> 1) // retry |
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304 |
; |
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|
305 |
r += origin; |
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|
306 |
} |
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307 |
else { // range not representable as long |
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while (r < origin || r >= bound) |
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r = mix64(nextSeed()); |
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} |
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} |
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return r; |
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} |
314 |
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* The form of nextInt used by IntStream Spliterators. |
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* Exactly the same as long version, except for types. |
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* |
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* @param origin the least value, unless greater than bound |
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* @param bound the upper bound (exclusive), must not equal origin |
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* @return a pseudorandom value |
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*/ |
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323 |
final int internalNextInt(int origin, int bound) { |
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int r = mix32(nextSeed()); |
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325 |
if (origin < bound) { |
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int n = bound - origin, m = n - 1; |
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if ((n & m) == 0) |
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r = (r & m) + origin; |
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else if (n > 0) { |
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for (int u = r >>> 1; |
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u + m - (r = u % n) < 0; |
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u = mix32(nextSeed()) >>> 1) |
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; |
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r += origin; |
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335 |
} |
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336 |
else { |
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337 |
while (r < origin || r >= bound) |
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r = mix32(nextSeed()); |
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339 |
} |
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340 |
} |
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341 |
return r; |
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342 |
} |
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343 |
|
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344 |
/** |
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345 |
* The form of nextDouble used by DoubleStream Spliterators. |
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* |
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347 |
* @param origin the least value, unless greater than bound |
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348 |
* @param bound the upper bound (exclusive), must not equal origin |
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349 |
* @return a pseudorandom value |
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350 |
*/ |
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351 |
final double internalNextDouble(double origin, double bound) { |
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double r = (nextLong() >>> 11) * DOUBLE_UNIT; |
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353 |
if (origin < bound) { |
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354 |
r = r * (bound - origin) + origin; |
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355 |
if (r >= bound) // correct for rounding |
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r = Double.longBitsToDouble(Double.doubleToLongBits(bound) - 1); |
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357 |
} |
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358 |
return r; |
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359 |
} |
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360 |
|
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361 |
/** |
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362 |
* Returns a pseudorandom {@code int} value. |
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363 |
* |
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364 |
* @return a pseudorandom {@code int} value |
4110 | 365 |
*/ |
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366 |
public int nextInt() { |
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367 |
return mix32(nextSeed()); |
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368 |
} |
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369 |
|
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370 |
/** |
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371 |
* Returns a pseudorandom {@code int} value between zero (inclusive) |
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372 |
* and the specified bound (exclusive). |
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373 |
* |
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374 |
* @param bound the upper bound (exclusive). Must be positive. |
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375 |
* @return a pseudorandom {@code int} value between zero |
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376 |
* (inclusive) and the bound (exclusive) |
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377 |
* @throws IllegalArgumentException if {@code bound} is not positive |
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378 |
*/ |
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379 |
public int nextInt(int bound) { |
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380 |
if (bound <= 0) |
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381 |
throw new IllegalArgumentException(BadBound); |
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382 |
int r = mix32(nextSeed()); |
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383 |
int m = bound - 1; |
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384 |
if ((bound & m) == 0) // power of two |
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385 |
r &= m; |
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386 |
else { // reject over-represented candidates |
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387 |
for (int u = r >>> 1; |
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388 |
u + m - (r = u % bound) < 0; |
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389 |
u = mix32(nextSeed()) >>> 1) |
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390 |
; |
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391 |
} |
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392 |
return r; |
4110 | 393 |
} |
394 |
||
395 |
/** |
|
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396 |
* Returns a pseudorandom {@code int} value between the specified |
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397 |
* origin (inclusive) and the specified bound (exclusive). |
4110 | 398 |
* |
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399 |
* @param origin the least value returned |
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400 |
* @param bound the upper bound (exclusive) |
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401 |
* @return a pseudorandom {@code int} value between the origin |
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402 |
* (inclusive) and the bound (exclusive) |
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403 |
* @throws IllegalArgumentException if {@code origin} is greater than |
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404 |
* or equal to {@code bound} |
4110 | 405 |
*/ |
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406 |
public int nextInt(int origin, int bound) { |
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407 |
if (origin >= bound) |
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408 |
throw new IllegalArgumentException(BadRange); |
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409 |
return internalNextInt(origin, bound); |
4110 | 410 |
} |
411 |
||
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412 |
/** |
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413 |
* Returns a pseudorandom {@code long} value. |
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414 |
* |
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415 |
* @return a pseudorandom {@code long} value |
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416 |
*/ |
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417 |
public long nextLong() { |
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|
418 |
return mix64(nextSeed()); |
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419 |
} |
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420 |
|
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421 |
/** |
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422 |
* Returns a pseudorandom {@code long} value between zero (inclusive) |
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423 |
* and the specified bound (exclusive). |
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424 |
* |
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425 |
* @param bound the upper bound (exclusive). Must be positive. |
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426 |
* @return a pseudorandom {@code long} value between zero |
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427 |
* (inclusive) and the bound (exclusive) |
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428 |
* @throws IllegalArgumentException if {@code bound} is not positive |
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429 |
*/ |
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430 |
public long nextLong(long bound) { |
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431 |
if (bound <= 0) |
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432 |
throw new IllegalArgumentException(BadBound); |
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433 |
long r = mix64(nextSeed()); |
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434 |
long m = bound - 1; |
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|
435 |
if ((bound & m) == 0L) // power of two |
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436 |
r &= m; |
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437 |
else { // reject over-represented candidates |
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438 |
for (long u = r >>> 1; |
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|
439 |
u + m - (r = u % bound) < 0L; |
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|
440 |
u = mix64(nextSeed()) >>> 1) |
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|
441 |
; |
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|
442 |
} |
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|
443 |
return r; |
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|
444 |
} |
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|
445 |
|
4110 | 446 |
/** |
19609
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|
447 |
* Returns a pseudorandom {@code long} value between the specified |
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|
448 |
* origin (inclusive) and the specified bound (exclusive). |
4110 | 449 |
* |
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|
450 |
* @param origin the least value returned |
4110 | 451 |
* @param bound the upper bound (exclusive) |
19609
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|
452 |
* @return a pseudorandom {@code long} value between the origin |
108f52a7438f
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|
453 |
* (inclusive) and the bound (exclusive) |
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|
454 |
* @throws IllegalArgumentException if {@code origin} is greater than |
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|
455 |
* or equal to {@code bound} |
4110 | 456 |
*/ |
19609
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|
457 |
public long nextLong(long origin, long bound) { |
108f52a7438f
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|
458 |
if (origin >= bound) |
108f52a7438f
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|
459 |
throw new IllegalArgumentException(BadRange); |
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|
460 |
return internalNextLong(origin, bound); |
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|
461 |
} |
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|
462 |
|
108f52a7438f
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|
463 |
/** |
108f52a7438f
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|
464 |
* Returns a pseudorandom {@code double} value between zero |
108f52a7438f
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|
465 |
* (inclusive) and one (exclusive). |
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|
466 |
* |
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|
467 |
* @return a pseudorandom {@code double} value between zero |
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|
468 |
* (inclusive) and one (exclusive) |
108f52a7438f
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|
469 |
*/ |
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|
470 |
public double nextDouble() { |
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|
471 |
return (mix64(nextSeed()) >>> 11) * DOUBLE_UNIT; |
4110 | 472 |
} |
473 |
||
474 |
/** |
|
19609
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|
475 |
* Returns a pseudorandom {@code double} value between 0.0 |
108f52a7438f
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|
476 |
* (inclusive) and the specified bound (exclusive). |
4110 | 477 |
* |
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|
478 |
* @param bound the upper bound (exclusive). Must be positive. |
108f52a7438f
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|
479 |
* @return a pseudorandom {@code double} value between zero |
108f52a7438f
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|
480 |
* (inclusive) and the bound (exclusive) |
108f52a7438f
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|
481 |
* @throws IllegalArgumentException if {@code bound} is not positive |
4110 | 482 |
*/ |
19609
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|
483 |
public double nextDouble(double bound) { |
108f52a7438f
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|
484 |
if (!(bound > 0.0)) |
108f52a7438f
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|
485 |
throw new IllegalArgumentException(BadBound); |
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|
486 |
double result = (mix64(nextSeed()) >>> 11) * DOUBLE_UNIT * bound; |
108f52a7438f
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|
487 |
return (result < bound) ? result : // correct for rounding |
108f52a7438f
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|
488 |
Double.longBitsToDouble(Double.doubleToLongBits(bound) - 1); |
4110 | 489 |
} |
490 |
||
491 |
/** |
|
19609
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|
492 |
* Returns a pseudorandom {@code double} value between the specified |
108f52a7438f
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|
493 |
* origin (inclusive) and bound (exclusive). |
4110 | 494 |
* |
19609
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|
495 |
* @param origin the least value returned |
4110 | 496 |
* @param bound the upper bound (exclusive) |
19609
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|
497 |
* @return a pseudorandom {@code double} value between the origin |
108f52a7438f
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|
498 |
* (inclusive) and the bound (exclusive) |
108f52a7438f
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psandoz
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changeset
|
499 |
* @throws IllegalArgumentException if {@code origin} is greater than |
108f52a7438f
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|
500 |
* or equal to {@code bound} |
4110 | 501 |
*/ |
19609
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|
502 |
public double nextDouble(double origin, double bound) { |
108f52a7438f
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|
503 |
if (!(origin < bound)) |
108f52a7438f
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|
504 |
throw new IllegalArgumentException(BadRange); |
108f52a7438f
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changeset
|
505 |
return internalNextDouble(origin, bound); |
108f52a7438f
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psandoz
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changeset
|
506 |
} |
108f52a7438f
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psandoz
parents:
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changeset
|
507 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
508 |
/** |
108f52a7438f
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psandoz
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changeset
|
509 |
* Returns a pseudorandom {@code boolean} value. |
108f52a7438f
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psandoz
parents:
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changeset
|
510 |
* |
108f52a7438f
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psandoz
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changeset
|
511 |
* @return a pseudorandom {@code boolean} value |
108f52a7438f
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psandoz
parents:
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changeset
|
512 |
*/ |
108f52a7438f
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changeset
|
513 |
public boolean nextBoolean() { |
108f52a7438f
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psandoz
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changeset
|
514 |
return mix32(nextSeed()) < 0; |
108f52a7438f
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psandoz
parents:
17421
diff
changeset
|
515 |
} |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
516 |
|
108f52a7438f
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psandoz
parents:
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diff
changeset
|
517 |
/** |
108f52a7438f
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psandoz
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changeset
|
518 |
* Returns a pseudorandom {@code float} value between zero |
108f52a7438f
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psandoz
parents:
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changeset
|
519 |
* (inclusive) and one (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
520 |
* |
108f52a7438f
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psandoz
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changeset
|
521 |
* @return a pseudorandom {@code float} value between zero |
108f52a7438f
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psandoz
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changeset
|
522 |
* (inclusive) and one (exclusive) |
108f52a7438f
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psandoz
parents:
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changeset
|
523 |
*/ |
108f52a7438f
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psandoz
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changeset
|
524 |
public float nextFloat() { |
108f52a7438f
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psandoz
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changeset
|
525 |
return (mix32(nextSeed()) >>> 8) * FLOAT_UNIT; |
4110 | 526 |
} |
527 |
||
15266
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
528 |
public double nextGaussian() { |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
529 |
// Use nextLocalGaussian instead of nextGaussian field |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
530 |
Double d = nextLocalGaussian.get(); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
531 |
if (d != null) { |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
532 |
nextLocalGaussian.set(null); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
533 |
return d.doubleValue(); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
534 |
} |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
535 |
double v1, v2, s; |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
536 |
do { |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
537 |
v1 = 2 * nextDouble() - 1; // between -1 and 1 |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
538 |
v2 = 2 * nextDouble() - 1; // between -1 and 1 |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
539 |
s = v1 * v1 + v2 * v2; |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
540 |
} while (s >= 1 || s == 0); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
541 |
double multiplier = StrictMath.sqrt(-2 * StrictMath.log(s)/s); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
542 |
nextLocalGaussian.set(new Double(v2 * multiplier)); |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
543 |
return v1 * multiplier; |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
544 |
} |
379788c73130
8005926: Merge ThreadLocalRandom state into java.lang.Thread
dl
parents:
9242
diff
changeset
|
545 |
|
19609
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
546 |
// stream methods, coded in a way intended to better isolate for |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
547 |
// maintenance purposes the small differences across forms. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
548 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
549 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
550 |
* Returns a stream producing the given {@code streamSize} number of |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
551 |
* pseudorandom {@code int} values. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
552 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
553 |
* @param streamSize the number of values to generate |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
554 |
* @return a stream of pseudorandom {@code int} values |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
555 |
* @throws IllegalArgumentException if {@code streamSize} is |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
556 |
* less than zero |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
557 |
* @since 1.8 |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
558 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
559 |
public IntStream ints(long streamSize) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
560 |
if (streamSize < 0L) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
561 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
562 |
return StreamSupport.intStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
563 |
(new RandomIntsSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
564 |
(0L, streamSize, Integer.MAX_VALUE, 0), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
565 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
566 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
567 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
568 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
569 |
* Returns an effectively unlimited stream of pseudorandom {@code int} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
570 |
* values. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
571 |
* |
108f52a7438f
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psandoz
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|
572 |
* @implNote This method is implemented to be equivalent to {@code |
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changeset
|
573 |
* ints(Long.MAX_VALUE)}. |
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changeset
|
574 |
* |
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changeset
|
575 |
* @return a stream of pseudorandom {@code int} values |
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changeset
|
576 |
* @since 1.8 |
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changeset
|
577 |
*/ |
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changeset
|
578 |
public IntStream ints() { |
108f52a7438f
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changeset
|
579 |
return StreamSupport.intStream |
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changeset
|
580 |
(new RandomIntsSpliterator |
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changeset
|
581 |
(0L, Long.MAX_VALUE, Integer.MAX_VALUE, 0), |
108f52a7438f
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changeset
|
582 |
false); |
108f52a7438f
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changeset
|
583 |
} |
108f52a7438f
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changeset
|
584 |
|
108f52a7438f
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psandoz
parents:
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changeset
|
585 |
/** |
108f52a7438f
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changeset
|
586 |
* Returns a stream producing the given {@code streamSize} number |
108f52a7438f
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changeset
|
587 |
* of pseudorandom {@code int} values, each conforming to the given |
108f52a7438f
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changeset
|
588 |
* origin (inclusive) and bound (exclusive). |
108f52a7438f
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changeset
|
589 |
* |
108f52a7438f
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changeset
|
590 |
* @param streamSize the number of values to generate |
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changeset
|
591 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
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changeset
|
592 |
* @param randomNumberBound the bound (exclusive) of each random value |
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changeset
|
593 |
* @return a stream of pseudorandom {@code int} values, |
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changeset
|
594 |
* each with the given origin (inclusive) and bound (exclusive) |
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changeset
|
595 |
* @throws IllegalArgumentException if {@code streamSize} is |
108f52a7438f
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changeset
|
596 |
* less than zero, or {@code randomNumberOrigin} |
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changeset
|
597 |
* is greater than or equal to {@code randomNumberBound} |
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changeset
|
598 |
* @since 1.8 |
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changeset
|
599 |
*/ |
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changeset
|
600 |
public IntStream ints(long streamSize, int randomNumberOrigin, |
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|
601 |
int randomNumberBound) { |
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changeset
|
602 |
if (streamSize < 0L) |
108f52a7438f
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changeset
|
603 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
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changeset
|
604 |
if (randomNumberOrigin >= randomNumberBound) |
108f52a7438f
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changeset
|
605 |
throw new IllegalArgumentException(BadRange); |
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changeset
|
606 |
return StreamSupport.intStream |
108f52a7438f
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changeset
|
607 |
(new RandomIntsSpliterator |
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changeset
|
608 |
(0L, streamSize, randomNumberOrigin, randomNumberBound), |
108f52a7438f
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changeset
|
609 |
false); |
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changeset
|
610 |
} |
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parents:
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changeset
|
611 |
|
108f52a7438f
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psandoz
parents:
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changeset
|
612 |
/** |
108f52a7438f
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changeset
|
613 |
* Returns an effectively unlimited stream of pseudorandom {@code |
108f52a7438f
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changeset
|
614 |
* int} values, each conforming to the given origin (inclusive) and bound |
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changeset
|
615 |
* (exclusive). |
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changeset
|
616 |
* |
108f52a7438f
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changeset
|
617 |
* @implNote This method is implemented to be equivalent to {@code |
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changeset
|
618 |
* ints(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}. |
108f52a7438f
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parents:
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changeset
|
619 |
* |
108f52a7438f
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changeset
|
620 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
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changeset
|
621 |
* @param randomNumberBound the bound (exclusive) of each random value |
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changeset
|
622 |
* @return a stream of pseudorandom {@code int} values, |
108f52a7438f
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parents:
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changeset
|
623 |
* each with the given origin (inclusive) and bound (exclusive) |
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changeset
|
624 |
* @throws IllegalArgumentException if {@code randomNumberOrigin} |
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changeset
|
625 |
* is greater than or equal to {@code randomNumberBound} |
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changeset
|
626 |
* @since 1.8 |
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changeset
|
627 |
*/ |
108f52a7438f
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changeset
|
628 |
public IntStream ints(int randomNumberOrigin, int randomNumberBound) { |
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changeset
|
629 |
if (randomNumberOrigin >= randomNumberBound) |
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changeset
|
630 |
throw new IllegalArgumentException(BadRange); |
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changeset
|
631 |
return StreamSupport.intStream |
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changeset
|
632 |
(new RandomIntsSpliterator |
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changeset
|
633 |
(0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound), |
108f52a7438f
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changeset
|
634 |
false); |
108f52a7438f
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parents:
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diff
changeset
|
635 |
} |
108f52a7438f
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parents:
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diff
changeset
|
636 |
|
108f52a7438f
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psandoz
parents:
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diff
changeset
|
637 |
/** |
108f52a7438f
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psandoz
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changeset
|
638 |
* Returns a stream producing the given {@code streamSize} number of |
108f52a7438f
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parents:
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changeset
|
639 |
* pseudorandom {@code long} values. |
108f52a7438f
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parents:
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changeset
|
640 |
* |
108f52a7438f
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parents:
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changeset
|
641 |
* @param streamSize the number of values to generate |
108f52a7438f
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changeset
|
642 |
* @return a stream of pseudorandom {@code long} values |
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changeset
|
643 |
* @throws IllegalArgumentException if {@code streamSize} is |
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psandoz
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changeset
|
644 |
* less than zero |
108f52a7438f
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psandoz
parents:
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changeset
|
645 |
* @since 1.8 |
108f52a7438f
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parents:
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changeset
|
646 |
*/ |
108f52a7438f
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changeset
|
647 |
public LongStream longs(long streamSize) { |
108f52a7438f
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changeset
|
648 |
if (streamSize < 0L) |
108f52a7438f
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changeset
|
649 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
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changeset
|
650 |
return StreamSupport.longStream |
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changeset
|
651 |
(new RandomLongsSpliterator |
108f52a7438f
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parents:
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changeset
|
652 |
(0L, streamSize, Long.MAX_VALUE, 0L), |
108f52a7438f
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psandoz
parents:
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changeset
|
653 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
654 |
} |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
655 |
|
108f52a7438f
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psandoz
parents:
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diff
changeset
|
656 |
/** |
108f52a7438f
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psandoz
parents:
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changeset
|
657 |
* Returns an effectively unlimited stream of pseudorandom {@code long} |
108f52a7438f
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psandoz
parents:
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changeset
|
658 |
* values. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
659 |
* |
108f52a7438f
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psandoz
parents:
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changeset
|
660 |
* @implNote This method is implemented to be equivalent to {@code |
108f52a7438f
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changeset
|
661 |
* longs(Long.MAX_VALUE)}. |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
662 |
* |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
663 |
* @return a stream of pseudorandom {@code long} values |
108f52a7438f
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changeset
|
664 |
* @since 1.8 |
108f52a7438f
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psandoz
parents:
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changeset
|
665 |
*/ |
108f52a7438f
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psandoz
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changeset
|
666 |
public LongStream longs() { |
108f52a7438f
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changeset
|
667 |
return StreamSupport.longStream |
108f52a7438f
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psandoz
parents:
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changeset
|
668 |
(new RandomLongsSpliterator |
108f52a7438f
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psandoz
parents:
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changeset
|
669 |
(0L, Long.MAX_VALUE, Long.MAX_VALUE, 0L), |
108f52a7438f
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psandoz
parents:
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changeset
|
670 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
671 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
672 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
673 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
674 |
* Returns a stream producing the given {@code streamSize} number of |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
675 |
* pseudorandom {@code long}, each conforming to the given origin |
108f52a7438f
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psandoz
parents:
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changeset
|
676 |
* (inclusive) and bound (exclusive). |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
677 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
678 |
* @param streamSize the number of values to generate |
108f52a7438f
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psandoz
parents:
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changeset
|
679 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
108f52a7438f
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psandoz
parents:
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changeset
|
680 |
* @param randomNumberBound the bound (exclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
681 |
* @return a stream of pseudorandom {@code long} values, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
682 |
* each with the given origin (inclusive) and bound (exclusive) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
683 |
* @throws IllegalArgumentException if {@code streamSize} is |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
684 |
* less than zero, or {@code randomNumberOrigin} |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
685 |
* is greater than or equal to {@code randomNumberBound} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
686 |
* @since 1.8 |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
687 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
688 |
public LongStream longs(long streamSize, long randomNumberOrigin, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
689 |
long randomNumberBound) { |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
690 |
if (streamSize < 0L) |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
691 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
692 |
if (randomNumberOrigin >= randomNumberBound) |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
693 |
throw new IllegalArgumentException(BadRange); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
694 |
return StreamSupport.longStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
695 |
(new RandomLongsSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
696 |
(0L, streamSize, randomNumberOrigin, randomNumberBound), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
697 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
698 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
699 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
700 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
701 |
* Returns an effectively unlimited stream of pseudorandom {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
702 |
* long} values, each conforming to the given origin (inclusive) and bound |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
703 |
* (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
704 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
705 |
* @implNote This method is implemented to be equivalent to {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
706 |
* longs(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
707 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
708 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
709 |
* @param randomNumberBound the bound (exclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
710 |
* @return a stream of pseudorandom {@code long} values, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
711 |
* each with the given origin (inclusive) and bound (exclusive) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
712 |
* @throws IllegalArgumentException if {@code randomNumberOrigin} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
713 |
* is greater than or equal to {@code randomNumberBound} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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changeset
|
714 |
* @since 1.8 |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
715 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
716 |
public LongStream longs(long randomNumberOrigin, long randomNumberBound) { |
108f52a7438f
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psandoz
parents:
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changeset
|
717 |
if (randomNumberOrigin >= randomNumberBound) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
718 |
throw new IllegalArgumentException(BadRange); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
719 |
return StreamSupport.longStream |
108f52a7438f
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psandoz
parents:
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changeset
|
720 |
(new RandomLongsSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
721 |
(0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
722 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
723 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
724 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
725 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
726 |
* Returns a stream producing the given {@code streamSize} number of |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
727 |
* pseudorandom {@code double} values, each between zero |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
728 |
* (inclusive) and one (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
729 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
730 |
* @param streamSize the number of values to generate |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
731 |
* @return a stream of {@code double} values |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
732 |
* @throws IllegalArgumentException if {@code streamSize} is |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
733 |
* less than zero |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
734 |
* @since 1.8 |
108f52a7438f
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psandoz
parents:
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diff
changeset
|
735 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
736 |
public DoubleStream doubles(long streamSize) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
737 |
if (streamSize < 0L) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
738 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
739 |
return StreamSupport.doubleStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
740 |
(new RandomDoublesSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
741 |
(0L, streamSize, Double.MAX_VALUE, 0.0), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
742 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
743 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
744 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
745 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
746 |
* Returns an effectively unlimited stream of pseudorandom {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
747 |
* double} values, each between zero (inclusive) and one |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
748 |
* (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
749 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
750 |
* @implNote This method is implemented to be equivalent to {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
751 |
* doubles(Long.MAX_VALUE)}. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
752 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
753 |
* @return a stream of pseudorandom {@code double} values |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
754 |
* @since 1.8 |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
755 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
756 |
public DoubleStream doubles() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
757 |
return StreamSupport.doubleStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
758 |
(new RandomDoublesSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
759 |
(0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
760 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
761 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
762 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
763 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
764 |
* Returns a stream producing the given {@code streamSize} number of |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
765 |
* pseudorandom {@code double} values, each conforming to the given origin |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
766 |
* (inclusive) and bound (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
767 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
768 |
* @param streamSize the number of values to generate |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
769 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
770 |
* @param randomNumberBound the bound (exclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
771 |
* @return a stream of pseudorandom {@code double} values, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
772 |
* each with the given origin (inclusive) and bound (exclusive) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
773 |
* @throws IllegalArgumentException if {@code streamSize} is |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
774 |
* less than zero |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
775 |
* @throws IllegalArgumentException if {@code randomNumberOrigin} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
776 |
* is greater than or equal to {@code randomNumberBound} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
777 |
* @since 1.8 |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
778 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
779 |
public DoubleStream doubles(long streamSize, double randomNumberOrigin, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
780 |
double randomNumberBound) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
781 |
if (streamSize < 0L) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
782 |
throw new IllegalArgumentException(BadSize); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
783 |
if (!(randomNumberOrigin < randomNumberBound)) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
784 |
throw new IllegalArgumentException(BadRange); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
785 |
return StreamSupport.doubleStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
786 |
(new RandomDoublesSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
787 |
(0L, streamSize, randomNumberOrigin, randomNumberBound), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
788 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
789 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
790 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
791 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
792 |
* Returns an effectively unlimited stream of pseudorandom {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
793 |
* double} values, each conforming to the given origin (inclusive) and bound |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
794 |
* (exclusive). |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
795 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
796 |
* @implNote This method is implemented to be equivalent to {@code |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
797 |
* doubles(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
798 |
* |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
799 |
* @param randomNumberOrigin the origin (inclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
800 |
* @param randomNumberBound the bound (exclusive) of each random value |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
801 |
* @return a stream of pseudorandom {@code double} values, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
802 |
* each with the given origin (inclusive) and bound (exclusive) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
803 |
* @throws IllegalArgumentException if {@code randomNumberOrigin} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
804 |
* is greater than or equal to {@code randomNumberBound} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
805 |
* @since 1.8 |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
806 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
807 |
public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
808 |
if (!(randomNumberOrigin < randomNumberBound)) |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
809 |
throw new IllegalArgumentException(BadRange); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
810 |
return StreamSupport.doubleStream |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
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parents:
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diff
changeset
|
811 |
(new RandomDoublesSpliterator |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
812 |
(0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound), |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
813 |
false); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
814 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
815 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
816 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
817 |
* Spliterator for int streams. We multiplex the four int |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
818 |
* versions into one class by treating a bound less than origin as |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
819 |
* unbounded, and also by treating "infinite" as equivalent to |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
820 |
* Long.MAX_VALUE. For splits, it uses the standard divide-by-two |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
821 |
* approach. The long and double versions of this class are |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
822 |
* identical except for types. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
823 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
824 |
static final class RandomIntsSpliterator implements Spliterator.OfInt { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
825 |
long index; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
826 |
final long fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
827 |
final int origin; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
828 |
final int bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
829 |
RandomIntsSpliterator(long index, long fence, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
830 |
int origin, int bound) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
831 |
this.index = index; this.fence = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
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diff
changeset
|
832 |
this.origin = origin; this.bound = bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
833 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
834 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
835 |
public RandomIntsSpliterator trySplit() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
836 |
long i = index, m = (i + fence) >>> 1; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
837 |
return (m <= i) ? null : |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
838 |
new RandomIntsSpliterator(i, index = m, origin, bound); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
839 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
840 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
841 |
public long estimateSize() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
842 |
return fence - index; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
843 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
844 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
845 |
public int characteristics() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
846 |
return (Spliterator.SIZED | Spliterator.SUBSIZED | |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
847 |
Spliterator.NONNULL | Spliterator.IMMUTABLE); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
848 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
849 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
850 |
public boolean tryAdvance(IntConsumer consumer) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
851 |
if (consumer == null) throw new NullPointerException(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
852 |
long i = index, f = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
853 |
if (i < f) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
854 |
consumer.accept(ThreadLocalRandom.current().internalNextInt(origin, bound)); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
855 |
index = i + 1; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
856 |
return true; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
857 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
858 |
return false; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
859 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
860 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
861 |
public void forEachRemaining(IntConsumer consumer) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
862 |
if (consumer == null) throw new NullPointerException(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
863 |
long i = index, f = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
864 |
if (i < f) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
865 |
index = f; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
866 |
int o = origin, b = bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
867 |
ThreadLocalRandom rng = ThreadLocalRandom.current(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
868 |
do { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
869 |
consumer.accept(rng.internalNextInt(o, b)); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
870 |
} while (++i < f); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
871 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
872 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
873 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
874 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
875 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
876 |
* Spliterator for long streams. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
877 |
*/ |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
878 |
static final class RandomLongsSpliterator implements Spliterator.OfLong { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
879 |
long index; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
880 |
final long fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
881 |
final long origin; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
882 |
final long bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
883 |
RandomLongsSpliterator(long index, long fence, |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
884 |
long origin, long bound) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
885 |
this.index = index; this.fence = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
886 |
this.origin = origin; this.bound = bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
887 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
888 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
889 |
public RandomLongsSpliterator trySplit() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
890 |
long i = index, m = (i + fence) >>> 1; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
891 |
return (m <= i) ? null : |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
892 |
new RandomLongsSpliterator(i, index = m, origin, bound); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
893 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
894 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
895 |
public long estimateSize() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
896 |
return fence - index; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
897 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
898 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
899 |
public int characteristics() { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
900 |
return (Spliterator.SIZED | Spliterator.SUBSIZED | |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
901 |
Spliterator.NONNULL | Spliterator.IMMUTABLE); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
902 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
903 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
904 |
public boolean tryAdvance(LongConsumer consumer) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
905 |
if (consumer == null) throw new NullPointerException(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
906 |
long i = index, f = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
907 |
if (i < f) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
908 |
consumer.accept(ThreadLocalRandom.current().internalNextLong(origin, bound)); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
909 |
index = i + 1; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
910 |
return true; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
911 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
912 |
return false; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
913 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
914 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
915 |
public void forEachRemaining(LongConsumer consumer) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
916 |
if (consumer == null) throw new NullPointerException(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
917 |
long i = index, f = fence; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
918 |
if (i < f) { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
919 |
index = f; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
920 |
long o = origin, b = bound; |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
921 |
ThreadLocalRandom rng = ThreadLocalRandom.current(); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
922 |
do { |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
923 |
consumer.accept(rng.internalNextLong(o, b)); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
924 |
} while (++i < f); |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
925 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
926 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
927 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
928 |
} |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
929 |
|
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
930 |
/** |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
931 |
* Spliterator for double streams. |
108f52a7438f
8023155: Ensure functional consistency across Random, ThreadLocalRandom, SplittableRandom
psandoz
parents:
17421
diff
changeset
|
932 |
*/ |
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|
933 |
static final class RandomDoublesSpliterator implements Spliterator.OfDouble { |
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|
934 |
long index; |
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|
935 |
final long fence; |
108f52a7438f
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|
936 |
final double origin; |
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|
937 |
final double bound; |
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|
938 |
RandomDoublesSpliterator(long index, long fence, |
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|
939 |
double origin, double bound) { |
108f52a7438f
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|
940 |
this.index = index; this.fence = fence; |
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|
941 |
this.origin = origin; this.bound = bound; |
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|
942 |
} |
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changeset
|
943 |
|
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|
944 |
public RandomDoublesSpliterator trySplit() { |
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|
945 |
long i = index, m = (i + fence) >>> 1; |
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|
946 |
return (m <= i) ? null : |
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|
947 |
new RandomDoublesSpliterator(i, index = m, origin, bound); |
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changeset
|
948 |
} |
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changeset
|
949 |
|
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|
950 |
public long estimateSize() { |
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|
951 |
return fence - index; |
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|
952 |
} |
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changeset
|
953 |
|
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|
954 |
public int characteristics() { |
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|
955 |
return (Spliterator.SIZED | Spliterator.SUBSIZED | |
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|
956 |
Spliterator.NONNULL | Spliterator.IMMUTABLE); |
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|
957 |
} |
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changeset
|
958 |
|
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changeset
|
959 |
public boolean tryAdvance(DoubleConsumer consumer) { |
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|
960 |
if (consumer == null) throw new NullPointerException(); |
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changeset
|
961 |
long i = index, f = fence; |
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changeset
|
962 |
if (i < f) { |
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|
963 |
consumer.accept(ThreadLocalRandom.current().internalNextDouble(origin, bound)); |
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changeset
|
964 |
index = i + 1; |
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changeset
|
965 |
return true; |
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changeset
|
966 |
} |
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changeset
|
967 |
return false; |
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changeset
|
968 |
} |
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changeset
|
969 |
|
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changeset
|
970 |
public void forEachRemaining(DoubleConsumer consumer) { |
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changeset
|
971 |
if (consumer == null) throw new NullPointerException(); |
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changeset
|
972 |
long i = index, f = fence; |
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changeset
|
973 |
if (i < f) { |
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changeset
|
974 |
index = f; |
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changeset
|
975 |
double o = origin, b = bound; |
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changeset
|
976 |
ThreadLocalRandom rng = ThreadLocalRandom.current(); |
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changeset
|
977 |
do { |
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changeset
|
978 |
consumer.accept(rng.internalNextDouble(o, b)); |
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changeset
|
979 |
} while (++i < f); |
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changeset
|
980 |
} |
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changeset
|
981 |
} |
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changeset
|
982 |
} |
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changeset
|
983 |
|
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changeset
|
984 |
|
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changeset
|
985 |
// Within-package utilities |
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changeset
|
986 |
|
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changeset
|
987 |
/* |
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|
988 |
* Descriptions of the usages of the methods below can be found in |
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|
989 |
* the classes that use them. Briefly, a thread's "probe" value is |
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|
990 |
* a non-zero hash code that (probably) does not collide with |
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|
991 |
* other existing threads with respect to any power of two |
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|
992 |
* collision space. When it does collide, it is pseudo-randomly |
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|
993 |
* adjusted (using a Marsaglia XorShift). The nextSecondarySeed |
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changeset
|
994 |
* method is used in the same contexts as ThreadLocalRandom, but |
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|
995 |
* only for transient usages such as random adaptive spin/block |
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|
996 |
* sequences for which a cheap RNG suffices and for which it could |
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|
997 |
* in principle disrupt user-visible statistical properties of the |
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|
998 |
* main ThreadLocalRandom if we were to use it. |
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changeset
|
999 |
* |
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changeset
|
1000 |
* Note: Because of package-protection issues, versions of some |
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|
1001 |
* these methods also appear in some subpackage classes. |
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changeset
|
1002 |
*/ |
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changeset
|
1003 |
|
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changeset
|
1004 |
/** |
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changeset
|
1005 |
* Returns the probe value for the current thread without forcing |
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|
1006 |
* initialization. Note that invoking ThreadLocalRandom.current() |
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changeset
|
1007 |
* can be used to force initialization on zero return. |
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changeset
|
1008 |
*/ |
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changeset
|
1009 |
static final int getProbe() { |
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changeset
|
1010 |
return UNSAFE.getInt(Thread.currentThread(), PROBE); |
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changeset
|
1011 |
} |
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changeset
|
1012 |
|
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changeset
|
1013 |
/** |
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changeset
|
1014 |
* Pseudo-randomly advances and records the given probe value for the |
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changeset
|
1015 |
* given thread. |
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changeset
|
1016 |
*/ |
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changeset
|
1017 |
static final int advanceProbe(int probe) { |
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changeset
|
1018 |
probe ^= probe << 13; // xorshift |
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changeset
|
1019 |
probe ^= probe >>> 17; |
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changeset
|
1020 |
probe ^= probe << 5; |
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changeset
|
1021 |
UNSAFE.putInt(Thread.currentThread(), PROBE, probe); |
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changeset
|
1022 |
return probe; |
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changeset
|
1023 |
} |
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changeset
|
1024 |
|
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changeset
|
1025 |
/** |
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changeset
|
1026 |
* Returns the pseudo-randomly initialized or updated secondary seed. |
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changeset
|
1027 |
*/ |
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changeset
|
1028 |
static final int nextSecondarySeed() { |
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changeset
|
1029 |
int r; |
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changeset
|
1030 |
Thread t = Thread.currentThread(); |
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changeset
|
1031 |
if ((r = UNSAFE.getInt(t, SECONDARY)) != 0) { |
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changeset
|
1032 |
r ^= r << 13; // xorshift |
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changeset
|
1033 |
r ^= r >>> 17; |
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changeset
|
1034 |
r ^= r << 5; |
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changeset
|
1035 |
} |
16043
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changeset
|
1036 |
else { |
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changeset
|
1037 |
localInit(); |
0c9424895efb
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changeset
|
1038 |
if ((r = (int)UNSAFE.getLong(t, SEED)) == 0) |
0c9424895efb
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changeset
|
1039 |
r = 1; // avoid zero |
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changeset
|
1040 |
} |
15266
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changeset
|
1041 |
UNSAFE.putInt(t, SECONDARY, r); |
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changeset
|
1042 |
return r; |
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changeset
|
1043 |
} |
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changeset
|
1044 |
|
16043
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changeset
|
1045 |
// Serialization support |
15266
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changeset
|
1046 |
|
4110 | 1047 |
private static final long serialVersionUID = -5851777807851030925L; |
15266
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changeset
|
1048 |
|
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changeset
|
1049 |
/** |
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changeset
|
1050 |
* @serialField rnd long |
16043
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changeset
|
1051 |
* seed for random computations |
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changeset
|
1052 |
* @serialField initialized boolean |
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changeset
|
1053 |
* always true |
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changeset
|
1054 |
*/ |
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changeset
|
1055 |
private static final ObjectStreamField[] serialPersistentFields = { |
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changeset
|
1056 |
new ObjectStreamField("rnd", long.class), |
19609
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|
1057 |
new ObjectStreamField("initialized", boolean.class), |
16043
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changeset
|
1058 |
}; |
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changeset
|
1059 |
|
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/** |
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* Saves the {@code ThreadLocalRandom} to a stream (that is, serializes it). |
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* @param s the stream |
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1063 |
* @throws java.io.IOException if an I/O error occurs |
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*/ |
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1065 |
private void writeObject(java.io.ObjectOutputStream s) |
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1066 |
throws java.io.IOException { |
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1067 |
|
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1068 |
java.io.ObjectOutputStream.PutField fields = s.putFields(); |
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1069 |
fields.put("rnd", UNSAFE.getLong(Thread.currentThread(), SEED)); |
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1070 |
fields.put("initialized", true); |
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1071 |
s.writeFields(); |
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1072 |
} |
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1073 |
|
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1074 |
/** |
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1075 |
* Returns the {@link #current() current} thread's {@code ThreadLocalRandom}. |
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1076 |
* @return the {@link #current() current} thread's {@code ThreadLocalRandom} |
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1077 |
*/ |
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1078 |
private Object readResolve() { |
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1079 |
return current(); |
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1080 |
} |
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1081 |
|
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1082 |
// Unsafe mechanics |
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1083 |
private static final sun.misc.Unsafe UNSAFE; |
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1084 |
private static final long SEED; |
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1085 |
private static final long PROBE; |
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1086 |
private static final long SECONDARY; |
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1087 |
static { |
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1088 |
try { |
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1089 |
UNSAFE = sun.misc.Unsafe.getUnsafe(); |
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1090 |
Class<?> tk = Thread.class; |
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1091 |
SEED = UNSAFE.objectFieldOffset |
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1092 |
(tk.getDeclaredField("threadLocalRandomSeed")); |
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1093 |
PROBE = UNSAFE.objectFieldOffset |
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1094 |
(tk.getDeclaredField("threadLocalRandomProbe")); |
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1095 |
SECONDARY = UNSAFE.objectFieldOffset |
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1096 |
(tk.getDeclaredField("threadLocalRandomSecondarySeed")); |
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1097 |
} catch (Exception e) { |
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1098 |
throw new Error(e); |
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1099 |
} |
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1100 |
} |
4110 | 1101 |
} |