Author: erans
Date: Thu Dec 1 14:22:00 2011
New Revision: 1209100
URL: http://svn.apache.org/viewvc?rev=1209100&view=rev
Log:
MATH-690
Removed "sign" methods.
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/util/MathUtils.java
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/util/MathUtils.java
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math/util/MathUtils.java?rev=1209100&r1=1209099&r2=1209100&view=diff
==============================================================================
---
commons/proper/math/trunk/src/main/java/org/apache/commons/math/util/MathUtils.java
(original)
+++
commons/proper/math/trunk/src/main/java/org/apache/commons/math/util/MathUtils.java
Thu Dec 1 14:22:00 2011
@@ -41,24 +41,6 @@ public final class MathUtils {
*/
public static final double TWO_PI = 2 * FastMath.PI;
- /** -1.0 cast as a byte. */
- private static final byte NB = (byte)-1;
-
- /** -1.0 cast as a short. */
- private static final short NS = (short)-1;
-
- /** 1.0 cast as a byte. */
- private static final byte PB = (byte)1;
-
- /** 1.0 cast as a short. */
- private static final short PS = (short)1;
-
- /** 0.0 cast as a byte. */
- private static final byte ZB = (byte)0;
-
- /** 0.0 cast as a short. */
- private static final short ZS = (short)0;
-
/**
* Private Constructor
*/
@@ -134,20 +116,6 @@ public final class MathUtils {
}
/**
- * Returns the <a href="http://mathworld.wolfram.com/Sign.html";> sign</a>
- * for byte value {@code x}.
- * <p>
- * For a byte value x, this method returns (byte)(+1) if x > 0, (byte)(0)
if
- * x = 0, and (byte)(-1) if x < 0.</p>
- *
- * @param x the value, a byte
- * @return (byte)(+1), (byte)(0), or (byte)(-1), depending on the sign of x
- */
- public static byte sign(final byte x) {
- return (x == ZB) ? ZB : (x > ZB) ? PB : NB;
- }
-
- /**
* Returns the first argument with the sign of the second argument.
*
* @param magnitude Magnitude of the returned value.
@@ -234,46 +202,6 @@ public final class MathUtils {
return -magnitude; // Flip sign.
}
}
-
- /**
- * Returns the <a href="http://mathworld.wolfram.com/Sign.html";> sign</a>
- * for int value {@code x}.
- * <p>
- * For an int value x, this method returns +1 if x > 0, 0 if x = 0, and -1
- * if x < 0.</p>
- *
- * @param x the value, an int
- * @return +1, 0, or -1, depending on the sign of x
- */
- public static int sign(final int x) {
- return (x == 0) ? 0 : (x > 0) ? 1 : -1;
- }
-
- /**
- * Returns the <a href="http://mathworld.wolfram.com/Sign.html";> sign</a>
- * for long value {@code x}.
- * <p>
- * For a long value x, this method returns +1L if x > 0, 0L if x = 0, and
- * -1L if x < 0.</p>
- *
- * @param x the value, a long
- * @return +1L, 0L, or -1L, depending on the sign of x
- */
- public static long sign(final long x) {
- return (x == 0L) ? 0L : (x > 0L) ? 1L : -1L;
- }
-
- /**
- * Compute the <a href="http://mathworld.wolfram.com/Sign.html";>sign</a>
- * of the argument.
- *
- * @param x the value, a short
- * @return 1 if {@code x > 0}, 0 if {@code x == 0}, and -1 if {@code x <
0}.
- */
- public static short sign(final short x) {
- return (x == ZS) ? ZS : (x > ZS) ? PS : NS;
- }
-
/**
* Check that the argument is a real number.
*
