aboutsummaryrefslogtreecommitdiff
path: root/libjava/classpath/java/lang/StrictMath.java
diff options
context:
space:
mode:
authorMark Wielaard <mark@gcc.gnu.org>2006-05-18 17:29:21 +0000
committerMark Wielaard <mark@gcc.gnu.org>2006-05-18 17:29:21 +0000
commit4f9533c7722fa07511a94d005227961f4a4dec23 (patch)
tree9f9c470de62ee62fba1331a396450d728d2b1fad /libjava/classpath/java/lang/StrictMath.java
parenteaec4980e139903ae9b274d1abcf3a13946603a8 (diff)
downloadgcc-4f9533c7722fa07511a94d005227961f4a4dec23.zip
gcc-4f9533c7722fa07511a94d005227961f4a4dec23.tar.gz
gcc-4f9533c7722fa07511a94d005227961f4a4dec23.tar.bz2
Imported GNU Classpath 0.90
Imported GNU Classpath 0.90 * scripts/makemake.tcl: LocaleData.java moved to gnu/java/locale. * sources.am: Regenerated. * gcj/javaprims.h: Regenerated. * Makefile.in: Regenerated. * gcj/Makefile.in: Regenerated. * include/Makefile.in: Regenerated. * testsuite/Makefile.in: Regenerated. * gnu/java/lang/VMInstrumentationImpl.java: New override. * gnu/java/net/local/LocalSocketImpl.java: Likewise. * gnu/classpath/jdwp/VMMethod.java: Likewise. * gnu/classpath/jdwp/VMVirtualMachine.java: Update to latest interface. * java/lang/Thread.java: Add UncaughtExceptionHandler. * java/lang/reflect/Method.java: Implements GenericDeclaration and isSynthetic(), * java/lang/reflect/Field.java: Likewise. * java/lang/reflect/Constructor.java * java/lang/Class.java: Implements Type, GenericDeclaration, getSimpleName() and getEnclosing*() methods. * java/lang/Class.h: Add new public methods. * java/lang/Math.java: Add signum(), ulp() and log10(). * java/lang/natMath.cc (log10): New function. * java/security/VMSecureRandom.java: New override. * java/util/logging/Logger.java: Updated to latest classpath version. * java/util/logging/LogManager.java: New override. From-SVN: r113887
Diffstat (limited to 'libjava/classpath/java/lang/StrictMath.java')
-rw-r--r--libjava/classpath/java/lang/StrictMath.java80
1 files changed, 80 insertions, 0 deletions
diff --git a/libjava/classpath/java/lang/StrictMath.java b/libjava/classpath/java/lang/StrictMath.java
index 2079cc1..548a6f1 100644
--- a/libjava/classpath/java/lang/StrictMath.java
+++ b/libjava/classpath/java/lang/StrictMath.java
@@ -1841,4 +1841,84 @@ public final strictfp class StrictMath
double t = (float) a;
return t + a * (1 + t * z + t * v);
}
+
+ /**
+ * <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,
+ * ulp(x) == ulp(-x). If the argument is a NaN, then NaN is returned.
+ * If the argument is an infinity, then +Inf is returned. If the
+ * argument is zero (either positive or negative), then
+ * {@link Double#MIN_VALUE} is returned.
+ * @param d the double whose ulp should be returned
+ * @return the difference between the argument and the next larger double
+ * @since 1.5
+ */
+ public static double ulp(double d)
+ {
+ // There's no difference.
+ return Math.ulp(d);
+ }
+
+ /**
+ * Return the ulp for the given float argument. The ulp is the
+ * difference between the argument and the next larger float. Note
+ * that the sign of the float argument is ignored, that is,
+ * ulp(x) == ulp(-x). If the argument is a NaN, then NaN is returned.
+ * If the argument is an infinity, then +Inf is returned. If the
+ * argument is zero (either positive or negative), then
+ * {@link Float#MIN_VALUE} is returned.
+ * @param f the float whose ulp should be returned
+ * @return the difference between the argument and the next larger float
+ * @since 1.5
+ */
+ public static float ulp(float f)
+ {
+ // There's no difference.
+ return Math.ulp(f);
+ }
}