52 lines
1.7 KiB
Java
52 lines
1.7 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.hssf.record.formula.eval;
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import org.apache.poi.hssf.record.formula.functions.Function;
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/**
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* Implementation of Excel formula token '%'. <p/>
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* @author Josh Micich
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*/
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public final class PercentEval implements Function {
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public static final Function instance = new PercentEval();
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private PercentEval() {
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// enforce singleton
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}
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public ValueEval evaluate(ValueEval[] args, int srcRow, short srcCol) {
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if (args.length != 1) {
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return ErrorEval.VALUE_INVALID;
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}
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double d;
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try {
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ValueEval ve = OperandResolver.getSingleValue(args[0], srcRow, srcCol);
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d = OperandResolver.coerceValueToDouble(ve);
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} catch (EvaluationException e) {
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return e.getErrorEval();
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}
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if (d == 0.0) { // this '==' matches +0.0 and -0.0
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return NumberEval.ZERO;
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}
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return new NumberEval(d / 100);
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}
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}
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