GenericGF.h Example File

 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 /*
  *  GenericGF.h
  *  zxing
  *
  *  Created by Lukas Stabe on 13/02/2012.
  *  Copyright 2012 ZXing authors All rights reserved.
  *
  * Licensed 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.
  */

 #ifndef GENERICGF_H
 #define GENERICGF_H

 #include <vector>
 #include <zxing/common/Counted.h>

 namespace zxing {
   class GenericGFPoly;

   class GenericGF : public Counted {

   private:
     std::vector<int> expTable;
     std::vector<int> logTable;
     Ref<GenericGFPoly> zero;
     Ref<GenericGFPoly> one;
     int size;
     int primitive;
     int generatorBase;
     bool initialized;

     void initialize();
     void checkInit();

   public:
     static Ref<GenericGF> AZTEC_DATA_12;
     static Ref<GenericGF> AZTEC_DATA_10;
     static Ref<GenericGF> AZTEC_DATA_8;
     static Ref<GenericGF> AZTEC_DATA_6;
     static Ref<GenericGF> AZTEC_PARAM;
     static Ref<GenericGF> QR_CODE_FIELD_256;
     static Ref<GenericGF> DATA_MATRIX_FIELD_256;
     static Ref<GenericGF> MAXICODE_FIELD_64;

     GenericGF(int primitive, int size, int b);

     Ref<GenericGFPoly> getZero();
     Ref<GenericGFPoly> getOne();
     int getSize();
     int getGeneratorBase();
     Ref<GenericGFPoly> buildMonomial(int degree, int coefficient);

     static int addOrSubtract(int a, int b);
     int exp(int a);
     int log(int a);
     int inverse(int a);
     int multiply(int a, int b);
   };
 }

 #endif //GENERICGF_H