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Copy pathJFArrayFloat.java
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executable file
·70 lines (57 loc) · 1.49 KB
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package javaforce;
import java.util.*;
/** JFArrayFloat.
*
* @author pquiring
*
* Created : Sept 17, 2013
*/
public class JFArrayFloat {
private float[] buf;
private int count;
public static int initSize = 64;
public JFArrayFloat() {
count = 0;
buf = new float[initSize];
}
public int size() {
return count;
}
public void clear() {
count = 0;
if (buf.length != initSize) buf = new float[initSize];
}
public void append(float f) {
int newcount = count + 1;
if (newcount > buf.length) {
buf = Arrays.copyOf(buf, Math.max(buf.length << 1, newcount));
}
buf[count] = f;
count = newcount;
}
public void append(float[] f) {
int newcount = count + f.length;
if (newcount > buf.length) {
buf = Arrays.copyOf(buf, Math.max(buf.length << 1, newcount));
}
System.arraycopy(f, 0, buf, count, f.length);
count = newcount;
}
public void set(float[] s, int pos) {
int newcount = pos + s.length;
if (newcount > buf.length) {
buf = Arrays.copyOf(buf, Math.max(buf.length << 1, newcount));
}
System.arraycopy(s, 0, buf, pos, s.length);
}
public float[] toArray() {
return Arrays.copyOf(buf, count);
}
public float[] toArray(int pos, int length) {
return Arrays.copyOfRange(buf, pos, pos + length);
}
//returns the backing buffer (size may be larger than expected)
public float[] getBuffer() {
return buf;
}
}