Thread: Structure Pointer Problem! Help Plss! :D

As the rules and as person having dignity just tell me what the problem is and a probable solution and I'll do the rest. I absolutely have no idea what the problem is and I am confused with structure pointers. Here is the code and the problem is in the part where I add the values of the structures.

Code:

/*Variety of Program for Matrices*/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <math.h>

struct matrix{				//Reference of function for the Matrices
       double** pElements[10][10]; //Pointer for the elements of Matrices
       int MRow;
       int NColumn;   
}val[10];

int rowcol(int &row, int &col, int &x){//Asks for the values of Row and Column
    printf("\n\nEnter value for row: ");
    scanf("%d",&row);
    printf("Enter value for col: ");
    scanf("%d",&col);
    val[x].MRow=row;    //Stores assigned values of Row and Columns
    val[x].NColumn=col;
}

int matrixone(int &x){//Asking for values for elements of matrix
    int row,col,i,j;
    printf("\n\nMATRIX %d: ",x);
    rowcol(row,col,x);
    for(i=1;i<=row;i++){
       for(j=1;j<=col;j++){
       printf("Enter value for row [%d] and col [%d]: ",i,j);
       scanf("%d",&val[x].pElements[i][j]);//Stores elements of matrix 
                          }
                          }
}

int print(int &x){//Printing of the matrix elements
    int row,col,i,j;
    printf("\nMatrix %d is: \n",x);
    for(i=1;i<=row;i++){
    for(j=1;j<=col;j++){
    printf("%d  ",val[x].pElements[i][j]);
    }
    printf("\n");
    }
}

int adding(int &x){      <------------------------NEED HELP HERE!!!!!!!!!!!!!!!
    int row,col,i,j;  
    if(val[1].MRow==val[2].MRow&val[1].NColumn==val[2].NColumn){
        for(i=1;i<=row;i++){    
           for(j=1;j<=col;j++){
           **val[3].pElements[i][j] = **val[1].pElements[i][j] + **val[2].pElements[i][j];
                              }
                              }
           }//end of If Statement
           else
           printf("\nRows/Columns for 2 matrices are not equal! \n");
}

int subtract(int &x){
    int row,col,i,j;
    if(val[1].MRow==val[2].MRow&val[1].NColumn==val[2].NColumn){
        for(i=1;i<=row;i++){
           for(j=1;j<=col;j++){
          // val[3].pElements[i][j] = val[1].pElements[i][j] - val[2].pElements[i][j];
                              }
                              }
           }//end of If Statement
           else
           printf("\nRows/Columns for 2 matrices are not equal! \n");
}

int mult(int &x){
    int row,col,i,j;
    if(val[1].NColumn==val[2].MRow){
        for(i=1;i<=row;i++){
           for(j=1;j<=col;j++){
          // val[3].pElements[i][j] = val[1].pElements[i][j] - val[2].pElements[i][j];
                              }
                              }
           }//end of If Statement
           else
           printf("\nColumn of Matrix is not equal to Row of Matrix 2!\n");
}

int summate(int &x){
   int row,col,i,j=1,inc=0;
   do{
       for(i=1;i<=row;i++){
          //val[x].pElements[i][j+inc] = val[x].pElements[i][j+inc] + val[x].pElements[i][j];
                            }
         inc++;    
    }while((j+inc)<=col);
}

int transpose(int &x){
    int row,col,i,j,temp;
    for(i=1;i<=row;i++){
       for(j=1;j<=col;j++){
       val[2].pElements[j][i]= val[1].pElements[i][j];
                          }
                          }
       
    printf("\nMatrix %d is: \n",x);
    x=2;
    for(i=1;i<=col;i++){
    for(j=1;j<=row;j++){
    printf("%d  ",val[x].pElements[i][j]);
    }
    printf("\n");
    }
}
main(){
   int choice;
   int row,col;
   int i,j,x;
   
   printf(" !MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!MATRIX!\n");
   printf("--------------------------------------------------------------------------------\n");

   printf("OPERATION OF MATRICES\n");
   printf("\n1)Matrix Addition");
   printf("\n2)Matrix Subtraction");
   printf("\n3)Matrix Multiplications");
   printf("\n4)Computation of determinant");
   printf("\n5)Summation of rows and columns");
   printf("\n6)Matrix Inverse");
   printf("\n7)Matrix Transpose");
   printf("\n\nWhich operation to work on: ");
   scanf("%d",&choice);
   
   switch(choice){
                     case 1:
                          system("cls");
                          printf("MATRIX ADDITION");
                          x=1;//assigning matrix 1
                          matrixone(x);
                          print(x);
                          x=2;//assigning matrix 2
                          matrixone(x);
                          print(x);
                          x=3;//assigning matrix 3 (sum)
                          adding(x);
                          print(x);
                          break;
                     case 2:
                          system("cls");
                          printf("MATRIX SUBTRACTION");
                          x=1;//assigning matrix 1
                          matrixone(x);
                          print(x);
                          x=2;//assigning matrix 2
                          matrixone(x);
                          print(x);
                          x=3;//assigning matrix 3 (difference)
                          subtract(x);
                          print(x);
                          break;
                     case 3:
                          system("cls");
                          printf("MATRIX MULTIPLICATION");
                          x=1;//assigning matrix 1
                          matrixone(x);
                          print(x);
                          x=2;//assigning matrix 2
                          matrixone(x);
                          print(x);
                          x=3;//assigning matrix 3 (sum)
                          mult(x);
                          print(x);
                          break;
                     case 4:
                          system("cls");
                          printf("DETERMINANT OF A MATRIX");
                          break;
                     case 5:
                          system("cls");
                          printf("SUMMATION OF ROWS and COLUMNS");
                          break;
                     case 6:
                          system("cls");
                          printf("MATRIX INVERSE");
                          break;
                     case 7:
                          system("cls");
                          printf("MATRIX TRANSPOSE");
                          x=1;//assigning a matrix
                          matrixone(x);
                          print(x);
                          transpose(x);
                          break;
                     default:printf("Invalid Entry");
   }

getch();
}

I only need help in knowing the problem in the passed by value of adding(). The program just stops working when the addition process takes place. Need Help Thanks!