Indexables.checkIndexBounds(i, rows());
Indexables.checkOffsetLengthBounds(fromColumn, length, columns());
Indexables.checkOffsetLengthBounds(fromIndex, length, row.length());
ByteVectorIterator newIt = row.iterator(fromIndex, fromIndex + length);
ByteVectorIterator oldIt = rowIterator(i, fromColumn, fromColumn + length);
while (newIt.hasNext()) { // && oldIt.hasNext()
newIt.next();
oldIt.next();
oldIt.set(newIt.get());
}
}