--- jsr166/src/jsr166e/extra/AtomicDouble.java 2011/08/10 01:29:45 1.5 +++ jsr166/src/jsr166e/extra/AtomicDouble.java 2011/10/20 17:47:36 1.10 @@ -25,22 +25,25 @@ import static java.lang.Double.longBitsT * which differs from both the primitive double {@code ==} operator * and from {@link Double#equals}, as if implemented by: *
 {@code
- * boolean bitEquals(double x, double y) {
+ * static boolean bitEquals(double x, double y) {
  *   long xBits = Double.doubleToRawLongBits(x);
  *   long yBits = Double.doubleToRawLongBits(y);
  *   return xBits == yBits;
  * }}
* + * @see jsr166e.DoubleAdder + * @see jsr166e.DoubleMaxUpdater + * * @author Doug Lea * @author Martin Buchholz */ public class AtomicDouble extends Number implements java.io.Serializable { - static final long serialVersionUID = -8405198993435143622L; + private static final long serialVersionUID = -8405198993435143622L; private volatile long value; /** - * Creates a new AtomicDouble with the given initial value. + * Creates a new {@code AtomicDouble} with the given initial value. * * @param initialValue the initial value */ @@ -49,9 +52,11 @@ public class AtomicDouble extends Number } /** - * Creates a new AtomicDouble with initial value {@code 0.0}. + * Creates a new {@code AtomicDouble} with initial value {@code 0.0}. */ - public AtomicDouble() { this(0.0); } + public AtomicDouble() { + // assert doubleToRawLongBits(0.0) == 0L; + } /** * Gets the current value. @@ -118,7 +123,9 @@ public class AtomicDouble extends Number * if the current value is bitwise equal * to the expected value. * - *

May fail spuriously + *

May + * fail spuriously * and does not provide ordering guarantees, so is only rarely an * appropriate alternative to {@code compareAndSet}. * @@ -177,7 +184,7 @@ public class AtomicDouble extends Number * after a narrowing primitive conversion. */ public int intValue() { - return (int)get(); + return (int) get(); } /** @@ -185,7 +192,7 @@ public class AtomicDouble extends Number * after a narrowing primitive conversion. */ public long longValue() { - return (long)get(); + return (long) get(); } /** @@ -193,7 +200,7 @@ public class AtomicDouble extends Number * after a narrowing primitive conversion. */ public float floatValue() { - return (float)get(); + return (float) get(); } /** @@ -241,5 +248,4 @@ public class AtomicDouble extends Number } } } - }