I'm checking this in.
This adds the two StrictMath.signum methods.
They can simply delegate to Math.signum, as the code would be
identical.
Tom
2006-03-15 Tom Tromey <[EMAIL PROTECTED]>
* java/lang/StrictMath.java (signum): New methods.
Index: java/lang/StrictMath.java
===================================================================
RCS file: /cvsroot/classpath/classpath/java/lang/StrictMath.java,v
retrieving revision 1.7
diff -u -r1.7 StrictMath.java
--- java/lang/StrictMath.java 7 Mar 2006 01:02:01 -0000 1.7
+++ java/lang/StrictMath.java 15 Mar 2006 21:56:38 -0000
@@ -1843,6 +1843,50 @@
}
/**
+ * <p>
+ * Returns the sign of the argument as follows:
+ * </p>
+ * <ul>
+ * <li>If <code>a</code> is greater than zero, the result is 1.0.</li>
+ * <li>If <code>a</code> is less than zero, the result is -1.0.</li>
+ * <li>If <code>a</code> is <code>NaN</code>, the result is <code>NaN</code>.
+ * <li>If <code>a</code> is positive or negative zero, the result is the
+ * same.</li>
+ * </ul>
+ *
+ * @param a the numeric argument.
+ * @return the sign of the argument.
+ * @since 1.5.
+ */
+ public static double signum(double a)
+ {
+ // There's no difference.
+ return Math.signum(a);
+ }
+
+ /**
+ * <p>
+ * Returns the sign of the argument as follows:
+ * </p>
+ * <ul>
+ * <li>If <code>a</code> is greater than zero, the result is 1.0f.</li>
+ * <li>If <code>a</code> is less than zero, the result is -1.0f.</li>
+ * <li>If <code>a</code> is <code>NaN</code>, the result is <code>NaN</code>.
+ * <li>If <code>a</code> is positive or negative zero, the result is the
+ * same.</li>
+ * </ul>
+ *
+ * @param a the numeric argument.
+ * @return the sign of the argument.
+ * @since 1.5.
+ */
+ public static float signum(float a)
+ {
+ // There's no difference.
+ return Math.signum(a);
+ }
+
+ /**
* Return the ulp for the given double argument. The ulp is the
* difference between the argument and the next larger double. Note
* that the sign of the double argument is ignored, that is,
