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   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

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   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
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package org.apache.poi.ss.formula.functions;

import org.apache.poi.ss.formula.eval.ErrorEval;
import org.apache.poi.ss.formula.eval.ValueEval;

Convenience base class for any function which must take two or three
arguments
Author:
Josh Micich/**
 * Convenience base class for any function which must take two or three
 * arguments
 *
 * @author Josh Micich
 */
abstract class Var2or3ArgFunction implements Function2Arg, Function3Arg {

	public final ValueEval evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex) {
		switch (args.length) {
			case 2:
				return evaluate(srcRowIndex, srcColumnIndex, args[0], args[1]);
			case 3:
				return evaluate(srcRowIndex, srcColumnIndex, args[0], args[1], args[2]);
		}
		return ErrorEval.VALUE_INVALID;
	}
}