| // Lucene version compatibility level 4.8.1 |
| using System; |
| |
| namespace Lucene.Net.Queries.Function.ValueSources |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Function to raise the base "a" to the power "b" |
| /// <para/> |
| /// NOTE: This was PowFloatFunction in Lucene |
| /// </summary> |
| public class PowSingleFunction : DualSingleFunction |
| { |
| /// <param name="a"> the base. </param> |
| /// <param name="b"> the exponent. </param> |
| public PowSingleFunction(ValueSource a, ValueSource b) |
| : base(a, b) |
| { |
| } |
| |
| protected override string Name => "pow"; |
| |
| protected override float Func(int doc, FunctionValues aVals, FunctionValues bVals) |
| { |
| return (float)Math.Pow(aVals.SingleVal(doc), bVals.SingleVal(doc)); |
| } |
| } |
| } |