fixes for host gcc 4.6.1
[zpugcc/jano.git] / toolchain / gcc / libjava / java / nio / IntBufferImpl.java
blobec444c014c376c6ce530f8a0b986432fd4c77b7c
1 /* IntBufferImpl.java --
2 Copyright (C) 2002, 2003 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA.
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package java.nio;
41 /**
42 * This is a Heap memory implementation
44 final class IntBufferImpl extends IntBuffer
46 private boolean readOnly;
48 IntBufferImpl (int capacity)
50 this (new int [capacity], 0, capacity, capacity, 0, -1, false);
53 IntBufferImpl (int[] buffer, int offset, int capacity, int limit, int position, int mark, boolean readOnly)
55 super (buffer, offset, capacity, limit, position, mark);
56 this.readOnly = readOnly;
59 public boolean isReadOnly ()
61 return readOnly;
64 public IntBuffer slice ()
66 return new IntBufferImpl (backing_buffer, array_offset + position (), remaining (), remaining (), 0, -1, isReadOnly ());
69 public IntBuffer duplicate ()
71 return new IntBufferImpl (backing_buffer, array_offset, capacity (), limit (), position (), mark, isReadOnly ());
74 public IntBuffer asReadOnlyBuffer ()
76 return new IntBufferImpl (backing_buffer, array_offset, capacity (), limit (), position (), mark, true);
79 public IntBuffer compact ()
81 int copied = 0;
83 while (remaining () > 0)
85 put (copied, get ());
86 copied++;
89 position (copied);
90 return this;
93 public boolean isDirect ()
95 return false;
98 /**
99 * Relative get method. Reads the next <code>int</code> from the buffer.
101 final public int get ()
103 int result = backing_buffer [position ()];
104 position (position () + 1);
105 return result;
109 * Relative put method. Writes <code>value</code> to the next position
110 * in the buffer.
112 * @exception ReadOnlyBufferException If this buffer is read-only.
114 final public IntBuffer put (int value)
116 if (readOnly)
117 throw new ReadOnlyBufferException ();
119 backing_buffer [position ()] = value;
120 position (position () + 1);
121 return this;
125 * Absolute get method. Reads the <code>int</code> at position
126 * <code>index</code>.
128 * @exception IndexOutOfBoundsException If index is negative or not smaller
129 * than the buffer's limit.
131 final public int get (int index)
133 return backing_buffer [index];
137 * Absolute put method. Writes <code>value</value> to position
138 * <code>index</code> in the buffer.
140 * @exception IndexOutOfBoundsException If index is negative or not smaller
141 * than the buffer's limit.
142 * @exception ReadOnlyBufferException If this buffer is read-only.
144 final public IntBuffer put (int index, int value)
146 if (readOnly)
147 throw new ReadOnlyBufferException ();
149 backing_buffer [index] = value;
150 return this;
153 final public ByteOrder order ()
155 return ByteOrder.nativeOrder ();