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root/jsr166/jsr166/src/test/loops/LoopHelpers.java
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Comparing jsr166/src/test/loops/LoopHelpers.java (file contents):
Revision 1.7 by jsr166, Thu Oct 29 23:09:07 2009 UTC vs.
Revision 1.13 by jsr166, Sat Feb 16 20:50:29 2013 UTC

# Line 1 | Line 1
1   /*
2   * Written by Doug Lea with assistance from members of JCP JSR-166
3   * Expert Group and released to the public domain, as explained at
4 < * http://creativecommons.org/licenses/publicdomain
5 < */
6 < /**
7 < * Misc utilities in JSR166 performance tests
4 > * http://creativecommons.org/publicdomain/zero/1.0/
5   */
6  
7   import java.util.concurrent.*;
8   import java.util.concurrent.atomic.*;
9  
10 + /**
11 + * Misc utilities in JSR166 performance tests
12 + */
13   class LoopHelpers {
14  
15      static final SimpleRandom staticRNG = new SimpleRandom();
# Line 53 | Line 53 | class LoopHelpers {
53       */
54      public static int compute3(int x) {
55          int t = (x % 127773) * 16807 - (x / 127773) * 2836;
56 <        return (t > 0)? t : t + 0x7fffffff;
56 >        return (t > 0) ? t : t + 0x7fffffff;
57      }
58  
59      /**
# Line 106 | Line 106 | class LoopHelpers {
106      public static final class XorShift32Random {
107          static final AtomicInteger seq = new AtomicInteger(8862213);
108          int x = -1831433054;
109 <        public XorShift32Random(int seed) { x = seed;  }
109 >        public XorShift32Random(int seed) { x = seed; }
110          public XorShift32Random() {
111 <            this((int)System.nanoTime() + seq.getAndAdd(129));
111 >            this((int) System.nanoTime() + seq.getAndAdd(129));
112          }
113          public int next() {
114              x ^= x << 6;
# Line 128 | Line 128 | class LoopHelpers {
128          int w = 273326509;
129          public MarsagliaRandom(int seed) { x = seed; }
130          public MarsagliaRandom() {
131 <            this((int)System.nanoTime() + seq.getAndAdd(129));
131 >            this((int) System.nanoTime() + seq.getAndAdd(129));
132          }
133          public int next() {
134              int t = x ^ (x << 11);
# Line 143 | Line 143 | class LoopHelpers {
143       * Unsynchronized version of java.util.Random algorithm.
144       */
145      public static final class SimpleRandom {
146 <        private final static long multiplier = 0x5DEECE66DL;
147 <        private final static long addend = 0xBL;
148 <        private final static long mask = (1L << 48) - 1;
146 >        private static final long multiplier = 0x5DEECE66DL;
147 >        private static final long addend = 0xBL;
148 >        private static final long mask = (1L << 48) - 1;
149          static final AtomicLong seq = new AtomicLong( -715159705);
150          private long seed;
151  
# Line 164 | Line 164 | class LoopHelpers {
164          public int next() {
165              long nextseed = (seed * multiplier + addend) & mask;
166              seed = nextseed;
167 <            return ((int)(nextseed >>> 17)) & 0x7FFFFFFF;
167 >            return ((int) (nextseed >>> 17)) & 0x7FFFFFFF;
168          }
169      }
170  

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