/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: BTree.java
*
* Copyright (c) 2009 Sun Microsystems and Static Free Software
*
* Electric(tm) 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 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) 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 Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.database.geometry.btree.unboxed;
import java.io.*;
/** A 32-bit <tt>float</tt> in unboxed form */
public class UnboxedFloat implements UnboxedComparable<Float> {
public int getSize() { return 4; }
public Float deserialize(byte[] buf, int ofs) { return new Float(deserializeFloat(buf, ofs)); }
public void serialize(Float k, byte[] buf, int ofs) { serialize(k.floatValue(), buf, ofs); }
public float deserializeFloat(byte[] buf, int ofs) {
return
Float.intBitsToFloat(((buf[ofs+0] & 0xff) << 0) |
((buf[ofs+1] & 0xff) << 8) |
((buf[ofs+2] & 0xff) << 16) |
((buf[ofs+3] & 0xff) << 24));
}
public void serializeFloat(float f, byte[] buf, int ofs) {
int i = Float.floatToRawIntBits(f);
buf[ofs+0] = (byte)((i >> 0) & 0xff);
buf[ofs+1] = (byte)((i >> 8) & 0xff);
buf[ofs+2] = (byte)((i >> 16) & 0xff);
buf[ofs+3] = (byte)((i >> 24) & 0xff);
}
public int compare(byte[] buf1, int ofs1, byte[] buf2, int ofs2) {
float f1 = deserializeFloat(buf1, ofs1);
float f2 = deserializeFloat(buf2, ofs2);
return Float.compare(f1, f2);
}
}