Template for STL in .h File: Error Fix

[anonim]

Homework Statement

BAdapter: This class takes a template parameter and behaves like an adaptor class just like the stack or queue class of the STL. The parameter classes can be any STL class with a random access iterator.

Relevant Equations

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in .h file I write like this:

namespace board{
    template <class T>
    class BAdapter : public AbstractB{
        public:
            BAdapter();
            BAdapter(int x){
                x=6;
                setSize(x);
            }
            virtual void setSize(int receivedSize){
                int i,j;
                Board.clear();
                size=receivedSize;
                Board.resize(getSize());
                for(i=0; getSize()>i; i++){
                    Board[i].resize(getSize());
                }
                reset();
            }
      
            virtual bool loadGame(string fileName,char player,int game_mode){
                fstream file;
                int size2;
                int i,j;
                string line;
                bool flag=false;
                char state;

                file.open(fileName);
        
                if(file.is_open()){
                    file>>size2;
                    file>>player;
                    Board.clear();
                    Board.setSize(size2);
                    for(i=0; size2>i; i++){
                        file>>line;
                        for(j=0; size2>j; j++){
                            if(line[j]=='.'){
                                state='.';
                            }
                            else if(line[j]=='x'){
                                state='x';
                            }
                            else if(line[j]=='o'){
                                state='o';
                            }
                            Board[i][j].setRow(i);
                            Board[i][j].setColumn(j);
                            Board[i][j].set_cellState(state);
                        }
                    }
                    flag=true;
                    size=size2;

                    file.close();
                
                }
                 return flag;
            }
        protected:
            T<T<char>>Board;

    };
}

Actually, I did not understand exactly what I was expected to do, but I get an error.
Error is:
‘T’ is not a template
T<T<char>>Board;

 

[hdp12]

Maybe declare T somewhere?