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root/jsr166/jsr166/src/jsr166e/extra/AtomicDouble.java

Comparing jsr166/src/jsr166e/extra/AtomicDouble.java (file contents):
Revision 1.5 by jsr166, Wed Aug 10 01:29:45 2011 UTC vs.
Revision 1.10 by jsr166, Thu Oct 20 17:47:36 2011 UTC

#	Line 25 | Line 25 | import static java.lang.Double.longBitsT
25		* which differs from both the primitive double {@code ==} operator
26		* and from {@link Double#equals}, as if implemented by:
27		*  <pre> {@code
28	<	* boolean bitEquals(double x, double y) {
28	>	* static boolean bitEquals(double x, double y) {
29		*   long xBits = Double.doubleToRawLongBits(x);
30		*   long yBits = Double.doubleToRawLongBits(y);
31		*   return xBits == yBits;
32		* }}</pre>
33		*
34	+	* @see jsr166e.DoubleAdder
35	+	* @see jsr166e.DoubleMaxUpdater
36	+	*
37		* @author Doug Lea
38		* @author Martin Buchholz
39		*/
40		public class AtomicDouble extends Number implements java.io.Serializable {
41	<	static final long serialVersionUID = -8405198993435143622L;
41	>	private static final long serialVersionUID = -8405198993435143622L;
42
43		private volatile long value;
44
45		/**
46	<	* Creates a new AtomicDouble with the given initial value.
46	>	* Creates a new {@code AtomicDouble} with the given initial value.
47		*
48		* @param initialValue the initial value
49		*/
#	Line 49 | Line 52 | public class AtomicDouble extends Number
52		}
53
54		/**
55	<	* Creates a new AtomicDouble with initial value {@code 0.0}.
55	>	* Creates a new {@code AtomicDouble} with initial value {@code 0.0}.
56		*/
57	<	public AtomicDouble() { this(0.0); }
57	>	public AtomicDouble() {
58	>	// assert doubleToRawLongBits(0.0) == 0L;
59	>	}
60
61		/**
62		* Gets the current value.
#	Line 118 | Line 123 | public class AtomicDouble extends Number
123		* if the current value is <a href="#bitEquals">bitwise equal</a>
124		* to the expected value.
125		*
126	<	* <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
126	>	* <p>May <a
127	>	* href="http://download.oracle.com/javase/7/docs/api/java/util/concurrent/atomic/package-summary.html#Spurious">
128	>	* fail spuriously</a>
129		* and does not provide ordering guarantees, so is only rarely an
130		* appropriate alternative to {@code compareAndSet}.
131		*
#	Line 177 | Line 184 | public class AtomicDouble extends Number
184		* after a narrowing primitive conversion.
185		*/
186		public int intValue() {
187	<	return (int)get();
187	>	return (int) get();
188		}
189
190		/**
#	Line 185 | Line 192 | public class AtomicDouble extends Number
192		* after a narrowing primitive conversion.
193		*/
194		public long longValue() {
195	<	return (long)get();
195	>	return (long) get();
196		}
197
198		/**
#	Line 193 | Line 200 | public class AtomicDouble extends Number
200		* after a narrowing primitive conversion.
201		*/
202		public float floatValue() {
203	<	return (float)get();
203	>	return (float) get();
204		}
205
206		/**
#	Line 241 | Line 248 | public class AtomicDouble extends Number
248		}
249		}
250		}
244	–
251		}

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