libjava/

2008-06-28  Matthias Klose  <doko@ubuntu.com>

        Import GNU Classpath (classpath-0_97_2-release).

        * Regenerate class and header files.
        * Regenerate auto* files.
        * gcj/javaprims.h: Define jobjectRefType.
        * jni.cc (_Jv_JNI_GetObjectRefType): New (stub only).
        (_Jv_JNIFunctions): Initialize GetObjectRefType.
        * gnu/classpath/jdwp/VMVirtualMachine.java,
        java/security/VMSecureRandom.java: Merge from classpath.
        * HACKING: Fix typo.
        * ChangeLog-2007: New file.
        * configure.ac: Set JAVAC, pass --disable-regen-headers to classpath.

libjava/classpath/

2008-06-28  Matthias Klose  <doko@ubuntu.com>

        * m4/ac_prog_javac.m4: Disable check for JAVAC, when
        not configured with --enable-java-maintainer-mode.
        * aclocal.m4, configure: Regenerate.
        * native/jni/gstreamer-peer/Makefile.am: Do not link with
        libclasspathnative.
        * native/jni/gstreamer-peer/Makefile.in: Regenerate.
        * tools/Makefile.am, lib/Makefile.am: Use JAVAC for setting
        JCOMPILER, drop flags not understood by gcj.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@137223 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 24 insertions, 12 deletions

diff --git a/libjava/classpath/java/lang/Float.java b/libjava/classpath/java/lang/Float.java
index dc39ec2af20..72f31b57eb4 100644
--- a/libjava/classpath/java/lang/Float.java
+++ b/libjava/classpath/java/lang/Float.java
@@ -526,7 +526,10 @@ public final class Float extends Number implements Comparable<Float>
    */
   public static int floatToIntBits(float value)
   {
-    return VMFloat.floatToIntBits(value);
+    if (isNaN(value))
+      return 0x7fc00000;
+    else
+      return VMFloat.floatToRawIntBits(value);
   }
 
   /**
@@ -594,16 +597,25 @@ public final class Float extends Number implements Comparable<Float>
    */
   public static int compare(float x, float y)
   {
-    if (isNaN(x))
-      return isNaN(y) ? 0 : 1;
-    if (isNaN(y))
-      return -1;
-    // recall that 0.0 == -0.0, so we convert to infinities and try again
-    if (x == 0 && y == 0)
-      return (int) (1 / x - 1 / y);
-    if (x == y)
-      return 0;
-
-    return x > y ? 1 : -1;
+      // handle the easy cases:
+      if (x < y)
+	  return -1;
+      if (x > y)
+	  return 1;
+
+      // handle equality respecting that 0.0 != -0.0 (hence not using x == y):
+      int ix = floatToRawIntBits(x);
+      int iy = floatToRawIntBits(y);
+      if (ix == iy)
+	  return 0;
+
+      // handle NaNs:
+      if (x != x)
+	  return (y != y) ? 0 : 1;
+      else if (y != y)
+	  return -1;
+
+      // handle +/- 0.0
+      return (ix < iy) ? -1 : 1;
   }
 }