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authortromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4>1999-04-07 14:42:40 +0000
committertromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4>1999-04-07 14:42:40 +0000
commit2c60951ba0efef23e2b765964b5dc0f1f49438a9 (patch)
treed96801a16fdf03a5682ef98730fe333a46eef944 /libjava/java/lang/Float.java
parent1135eed2207f8f82c589e42ce113a1c2f0310778 (diff)
downloadppe42-gcc-2c60951ba0efef23e2b765964b5dc0f1f49438a9.tar.gz
ppe42-gcc-2c60951ba0efef23e2b765964b5dc0f1f49438a9.zip
Initial revision
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@26263 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libjava/java/lang/Float.java')
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diff --git a/libjava/java/lang/Float.java b/libjava/java/lang/Float.java
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+/* Copyright (C) 1998, 1999 Cygnus Solutions
+
+ This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+package java.lang;
+
+/**
+ * @author Andrew Haley <aph@cygnus.com>
+ * @date September 25, 1998.
+ */
+/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
+ * "The Java Language Specification", ISBN 0-201-63451-1
+ * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
+ * Status: Believed complete and correct.
+ */
+
+public final class Float extends Number
+{
+ public static final float MAX_VALUE = 3.4028235e+38f;
+ public static final float MIN_VALUE = 1.4e-45f;
+ public static final float NEGATIVE_INFINITY = -1.0f/0.0f;
+ public static final float POSITIVE_INFINITY = 1.0f/0.0f;
+ public static final float NaN = 0.0f/0.0f;
+
+ // This initialization is seemingly circular, but it is accepted
+ // by javac, and is handled specially by gcc.
+ public static final Class TYPE = float.class;
+
+ private float value;
+
+ public Float (float value)
+ {
+ this.value = value;
+ }
+
+ public Float (double value)
+ {
+ this.value = (float)value;
+ }
+
+ public Float (String s) throws NumberFormatException
+ {
+ this.value = valueOf (s).floatValue ();
+ }
+
+ public String toString ()
+ {
+ return toString (value);
+ }
+
+ public boolean equals (Object obj)
+ {
+ if (obj == null)
+ return false;
+
+ if (!(obj instanceof Float))
+ return false;
+
+ Float f = (Float) obj;
+
+ return floatToIntBits (value) == floatToIntBits (f.floatValue ());
+ }
+
+ public int hashCode ()
+ {
+ return floatToIntBits (value);
+ }
+
+ public int intValue ()
+ {
+ return (int) value;
+ }
+
+ public long longValue ()
+ {
+ return (long) value;
+ }
+
+ public float floatValue ()
+ {
+ return (float) value;
+ }
+
+ public double doubleValue ()
+ {
+ return (double) value;
+ }
+
+ public byte byteValue ()
+ {
+ return (byte) value;
+ }
+
+ public short shortValue ()
+ {
+ return (short) value;
+ }
+
+ public static String toString (float v)
+ {
+ return Double.toString ((double) v, true);
+ }
+
+ public static Float valueOf (String s) throws NullPointerException,
+ NumberFormatException
+ {
+ if (s == null)
+ throw new NullPointerException ();
+
+ return new Float (Double.valueOf (s).floatValue ());
+ }
+
+ public boolean isNaN ()
+ {
+ return isNaN (value);
+ }
+
+ public static boolean isNaN (float v)
+ {
+ int bits = floatToIntBits (v);
+ int e = bits & 0x7f800000;
+ int f = bits & 0x007fffff;
+
+ return e == 0x7f800000 && f != 0;
+ }
+
+ public boolean isInfinite ()
+ {
+ return isInfinite (value);
+ }
+
+ public static boolean isInfinite (float v)
+ {
+ int bits = floatToIntBits (v);
+ int f = bits & 0x7fffffff;
+
+ return f == 0x7f800000;
+ }
+
+ public static native int floatToIntBits (float value);
+
+ public static native float intBitsToFloat (int bits);
+
+}
+
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