@Override
public boolean equals(Object o) {
if (o instanceof FastIndex) {
FastIndex comp = (FastIndex) o;
if (nonZeroEntries != comp.nonZeroEntries) {
return false;
} else {
return Arrays.equals(entryNums, comp.entryNums) && Arrays.equals(entryVals, comp.entryVals);
}
} else if (o instanceof Index) {
Index comp = (Index) o;
if (nonZeroEntries() != comp.nonZeroEntries()) {
return false;
} else {
for (int i = 0; i < nonZeroEntries; i++) {
if (entryVals[i] != comp.get(entryNums[i])) {
return false;
}
}
return true;
}
}
return false;
}
/**
* Creates an new <code>FastIndex</code> from any <code>Index</code>.
*
* @param index index to initialize from
*/
public FastIndex(Index index) {
this(index.nonZeroEntries(), index.iterator());
}
