1 files changed, 291 insertions, 0 deletions
diff --git a/libjava/java/nio/CharBuffer.java b/libjava/java/nio/CharBuffer.java
new file mode 100644
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+++ b/libjava/java/nio/CharBuffer.java
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+/* CharBuffer.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.nio;
+
+public abstract class CharBuffer extends Buffer
+{
+  private ByteOrder endian = ByteOrder.BIG_ENDIAN;
+
+  protected char [] backing_buffer;
+  
+  public static CharBuffer allocate (int capacity)
+  {
+    return null;
+  }
+  
+  /**
+   * @exception IndexOutOfBoundsException If the preconditions on the offset
+   * and length parameters do not hold
+   */
+  final public static CharBuffer wrap (char[] array, int offset, int length)
+  {
+    if ((offset < 0) ||
+        (offset > array.length) ||
+        (length < 0) ||
+        (length > (array.length - offset)))
+      throw new IndexOutOfBoundsException ();
+ 
+    return null;
+  }
+  
+  final public static CharBuffer wrap (CharSequence a)
+  {
+    return wrap (a, 0, a.length ());
+  }
+  
+  /**
+   * @exception IndexOutOfBoundsException If the preconditions on the offset
+   * and length parameters do not hold
+   */
+  final public static CharBuffer wrap (CharSequence a, int offset, int length)
+  {
+    char [] buffer = new char [length];
+    
+    for (int i = offset; i < length; i++)
+      {
+        buffer [i] = a.charAt (i);
+      }
+    
+    return wrap (buffer, 0, length);
+  }
+  
+  final public static CharBuffer wrap (char[] array)
+  {
+    return wrap  (array, 0, array.length);
+  }
+  
+  /**
+   * @exception BufferUnderflowException FIXME
+   * @exception IndexOutOfBoundsException If the preconditions on the offset
+   * and length parameters do not hold
+   */
+  final public CharBuffer get (char[] dst, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      {
+        dst [i] = get ();
+      }
+    return this;
+  }
+  
+  /**
+   * @exception BufferUnderflowException FIXME
+   */
+  final public CharBuffer get (char[] dst)
+  {
+    return get (dst, 0, dst.length);
+  }
+  
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception IllegalArgumentException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  final public CharBuffer put (CharBuffer src)
+  {
+    while (src.hasRemaining ())
+      put (src.get ());
+
+    return this;
+  }
+ 
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception IndexOutOfBoundsException If the preconditions on the offset
+   * and length parameters do not hold
+   * @exception ReadOnlyBufferException FIXME
+   */
+  final public CharBuffer put (char[] src, int offset, int length)
+  {
+    for (int i = offset; i < offset + length; i++)
+      put (src [i]);
+
+    return this;
+  }
+
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public final CharBuffer put (char[] src)
+  {
+    return put (src, 0, src.length);
+  }
+
+  public final boolean hasArray ()
+  {
+    return backing_buffer != null;
+  }
+
+  /**
+   * @exception ReadOnlyBufferException FIXME
+   * @exception UnsupportedOperationException FIXME
+   */
+  public final char[] array ()
+  {
+    return backing_buffer;
+  }
+  
+  /**
+   * @exception ReadOnlyBufferException FIXME
+   * @exception UnsupportedOperationException FIXME
+   */
+  public final int arrayOffset ()
+  {
+    return 0;
+  }
+  
+  public int hashCode ()
+  {
+    return super.hashCode ();
+  }
+  
+  public boolean equals (Object obj)
+  {
+    if (obj instanceof CharBuffer)
+      return compareTo (obj) == 0;
+    
+    return false;
+  }
+ 
+  /**
+   * @exception ClassCastException FIXME
+   */
+  public int compareTo(Object obj)
+  {
+    CharBuffer a = (CharBuffer) obj;
+    
+    if (a.remaining () != remaining ())
+      return 1;
+    
+    if (! hasArray () || ! a.hasArray ())
+      return 1;
+    
+    int r = remaining ();
+    int i1 = pos;
+    int i2 = a.pos;
+    
+    for (int i = 0; i < r; i++)
+      {
+        int t = (int) (get (i1)- a.get (i2));
+	
+        if (t != 0)
+          return (int) t;
+      }
+    return 0;
+  }
+ 
+  /**
+   * @exception BufferUnderflowException FIXME
+   */
+  public abstract char get ();
+  
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public abstract CharBuffer put (char b);
+  
+  /**
+   * @exception IndexOutOfBoundsException FIXME
+   */
+  public abstract char get (int index);
+  
+  /**
+   * @exception IndexOutOfBoundsException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public abstract CharBuffer put (int index, char b);
+ 
+  /**
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public abstract CharBuffer compact ();
+  
+  public abstract boolean isDirect ();
+  
+  public abstract CharBuffer slice ();
+  
+  public abstract CharBuffer duplicate ();
+  
+  public abstract CharBuffer asReadOnlyBuffer ();
+  
+  public String toString ()
+  {
+    return "";
+  }
+
+  public final int length ()
+  { 
+    return 0;
+  }
+
+  public abstract ByteOrder order ();
+
+  /**
+   * @exception IndexOutOfBoundsException FIXME
+   */
+  public abstract CharSequence subSequence (int start, int length);
+
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception IndexOutOfBoundsException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public CharBuffer put (String str, int start, int length)
+  {
+    return null;
+  }
+  
+  /**
+   * @exception BufferOverflowException FIXME
+   * @exception ReadOnlyBufferException FIXME
+   */
+  public final CharBuffer put (String str)
+  {
+    return null;
+  }
+  
+  /**
+   * @exception IndexOutOfBoundsException FIXME
+   */
+  public final char charAt (int index)
+  {
+    return ' ';
+  }
+}