[Jnode-svn-commits] SF.net SVN: jnode: [3205] trunk/core/src/classpath/vm/java/lang

[<ls...@us...>]

Revision: 3205
          http://jnode.svn.sourceforge.net/jnode/?rev=3205&view=rev
Author:   lsantha
Date:     2007-05-16 13:03:44 -0700 (Wed, 16 May 2007)

Log Message:
-----------
Openjdk patches.

Modified Paths:
--------------
    trunk/core/src/classpath/vm/java/lang/NativeDouble.java

Added Paths:
-----------
    trunk/core/src/classpath/vm/java/lang/NativeFloat.java

Modified: trunk/core/src/classpath/vm/java/lang/NativeDouble.java
===================================================================
--- trunk/core/src/classpath/vm/java/lang/NativeDouble.java	2007-05-16 20:02:30 UTC (rev 3204)
+++ trunk/core/src/classpath/vm/java/lang/NativeDouble.java	2007-05-16 20:03:44 UTC (rev 3205)
@@ -8,7 +8,7 @@
 /**
  * @author Levente S\xE1ntha
  */
-public class NativeDouble {
+class NativeDouble {
     /**
      * Convert the double to the IEEE 754 floating-point "double format" bit
      * layout. Bit 63 (the most significant) is the sign bit, bits 62-52 (masked
@@ -23,7 +23,7 @@
      * @return the bits of the <code>double</code>
      * @see java.lang.Double#longBitsToDouble(long)
      */
-    public static long doubleToRawLongBits(double value) {
+    static long doubleToRawLongBits(double value) {
         return VmMagic.doubleToRawLongBits(value);
     }
 
@@ -41,7 +41,7 @@
      * @see java.lang.Double#doubleToLongBits(double)
      * @see #doubleToRawLongBits(double)
      */
-    public static double longBitsToDouble(long bits) {
+    static double longBitsToDouble(long bits) {
         return VmMagic.longBitsToDouble(bits);
     }
 }

Added: trunk/core/src/classpath/vm/java/lang/NativeFloat.java
===================================================================
--- trunk/core/src/classpath/vm/java/lang/NativeFloat.java	                        (rev 0)
+++ trunk/core/src/classpath/vm/java/lang/NativeFloat.java	2007-05-16 20:03:44 UTC (rev 3205)
@@ -0,0 +1,47 @@
+/*
+ * $Id$
+ */
+package java.lang;
+
+import org.jnode.vm.VmMagic;
+
+/**
+ * @author Levente S\xE1ntha
+ */
+class NativeFloat {
+    /**
+	 * Convert the float to the IEEE 754 floating-point "single format" bit
+	 * layout. Bit 31 (the most significant) is the sign bit, bits 30-23 (masked
+	 * by 0x7f800000) represent the exponent, and bits 22-0 (masked by
+	 * 0x007fffff) are the mantissa. This function leaves NaN alone, rather than
+	 * collapsing to a canonical value. The result of this function can be used
+	 * as the argument to <code>Float.intBitsToFloat(int)</code> to obtain the
+	 * original <code>float</code> value.
+	 *
+	 * @param value
+	 *            the <code>float</code> to convert
+	 * @return the bits of the <code>float</code>
+	 * @see #intBitsToFloat(int)
+	 */
+	static int floatToRawIntBits(float value) {
+		return VmMagic.floatToRawIntBits(value);
+	}
+
+	/**
+	 * Convert the argument in IEEE 754 floating-point "single format" bit
+	 * layout to the corresponding float. Bit 31 (the most significant) is the
+	 * sign bit, bits 30-23 (masked by 0x7f800000) represent the exponent, and
+	 * bits 22-0 (masked by 0x007fffff) are the mantissa. This function leaves
+	 * NaN alone, so that you can recover the bit pattern with
+	 * <code>Float.floatToRawIntBits(float)</code>.
+	 *
+	 * @param bits
+	 *            the bits to convert
+	 * @return the <code>float</code> represented by the bits
+	 * @see java.lang.Float#floatToIntBits(float)
+	 * @see #floatToRawIntBits(float)
+	 */
+	static float intBitsToFloat(int bits) {
+		return VmMagic.intBitsToFloat(bits);
+	}
+}


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