#include <iostream>
#include "tensor2D.h"

template<typename T>
Tensor2D<T>::Tensor2D(int rows, int cols) {
r=rows;
c=cols;
data = new T*[r];
for (int i=0; i<r; i++) {
      data[i]=new T[c];
       for (int j=0; j<c; j++) {
             data[i][j]= T();
             }
          }
      }
      template<typename T>
      Tensor2D<T>::Tensor2D(const Tensor2D &other) {
      r=other.r;
      c=other.c;
      data=new T*[r];
      for (int i=0; i<r; i++) {
            data[i]=new T[c];
            for (int j=0; j<c; j++) {
                data[i][j]=other.data[i][j];
                }
             }
      }
      
      template<typename T>
      Tensor2D<T>&::Tensor2D operator=(const Tensor2D &other) {
      if (this==&other)
          return *this;
      delete [] data;
      r=other.r;
      c=other.c;
      data=new T*[r];
      for( int i=0; i<r; i++) {
            data[i]=new T[c];
               for (int j=0; j<c; j++) {
               data[i][j]=other.data[i][j];
               }
           }
           return *this;
         } 
                        
       template<typename T>
       Tensor2D<T>::~Tensor2D() {
         for (int i=0; i<r; i++)
             delete data[i];
             delete[] data;
        } 
         
        template<typename T> 
        void Tensor2D<T>::set(int row, int col , T& value) {
        data[row][col]=value;
        }
        
         template<typename T>
         T Tensor2D<T>::get (int row, int col) const {
         return data[row][col];
         }
         template<typename T>
         T& Tensor2D<T>::operator() (int row,int col) {
         return data[row][col];
         }
         template<typename T>
         T& Tensor2D<T>::operator() (int row, int col) const {
         return data[row][col];
         }
         template<typename T>
         T *Tensor2D<T>::operator[](int row) {
         return data[row];
         }
          template<typename T>
          std::pair<int,int> Tensor2D<T>::shape() const {
          return {r,c};
          }
          template<typename T>
          int Tensor2D<T>::rows() const {
          return r;
          }
          template<typename T>
          int Tensor2D<T>::rows() const {
          return c;
          }
          template<typename T>
          void Tensor2D<T>::print(void) {
              for (int i=0; i<r; i++) {
              for (int j=0; j<c; j++) {
              std::cout<< data[i][j]<< " ";
              }
              std::cout<<std::endl;
              }
           }