GenericGFPoly.h

00001 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
00002 /*
00003  *  GenericGFPoly.h
00004  *  zxing
00005  *
00006  *  Created by Lukas Stabe on 13/02/2012.
00007  *  Copyright 2012 ZXing authors All rights reserved.
00008  *
00009  * Licensed under the Apache License, Version 2.0 (the "License");
00010  * you may not use this file except in compliance with the License.
00011  * You may obtain a copy of the License at
00012  *
00013  *      http://www.apache.org/licenses/LICENSE-2.0
00014  *
00015  * Unless required by applicable law or agreed to in writing, software
00016  * distributed under the License is distributed on an "AS IS" BASIS,
00017  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00018  * See the License for the specific language governing permissions and
00019  * limitations under the License.
00020  */
00021 
00022 #ifndef GENERICGFPOLY_H
00023 #define GENERICGFPOLY_H
00024 
00025 #include <vector>
00026 #include <zxing/common/Array.h>
00027 #include <zxing/common/Counted.h>
00028 
00029 namespace zxing {
00030 
00031 class GenericGF;
00032   
00033 class GenericGFPoly : public Counted {
00034 private:
00035   GenericGF &field_;
00036   ArrayRef<int> coefficients_;
00037     
00038 public:
00039   GenericGFPoly(GenericGF &field, ArrayRef<int> coefficients);
00040   ArrayRef<int> getCoefficients();
00041   int getDegree();
00042   bool isZero();
00043   int getCoefficient(int degree);
00044   int evaluateAt(int a);
00045   Ref<GenericGFPoly> addOrSubtract(Ref<GenericGFPoly> other);
00046   Ref<GenericGFPoly> multiply(Ref<GenericGFPoly> other);
00047   Ref<GenericGFPoly> multiply(int scalar);
00048   Ref<GenericGFPoly> multiplyByMonomial(int degree, int coefficient);
00049   std::vector<Ref<GenericGFPoly> > divide(Ref<GenericGFPoly> other);
00050     
00051 
00052 };
00053 
00054 }
00055 
00056 #endif //GENERICGFPOLY_H