src/main/java/org/apache/sysds/runtime/data/Block.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.sysds.runtime.data;

public interface Block {
	/**
	 * Get value of matrix cell (r,c). In case of non existing values this call returns 0.
	 * 
	 * @param r row index starting at 0
	 * @param c column index starting at 0
	 * @return value of cell at position (r,c)
	 */
	public abstract double get(int r, int c);
}