Thread: Array pointers question?

Can somebody tell me how this can be changed to accept and print doubles. It works for only integers. I've tried changing the int's to double and the%d to %f but it giving me errors

Code:

#include<stdio.h>
#include<math.h>
main(){    

              int a,b,c;
int i,j,k,p;
int *aptr;
int nrows, ncols; 
printf("How many rows would you like store?\n ");
  scanf("%d", &nrows);
  printf("How many columns would you like to store?\n ");
  scanf("%d", &ncols);
  printf("Enter the number of nearest neighbours p: ");
  scanf("%d", &p);
int row, col;
int Total=nrows*ncols;
int **rptr =(int**)malloc(nrows * sizeof(int *));
if (rptr == NULL)
{
puts("\nFailure to allocate room for pointers");
exit(0);
}   

/* we now allocate the memory for the array */
 aptr =(int*)malloc(Total* sizeof(int));
if (aptr == NULL)
{
puts("\nFailure to allocate room for the array");
exit(0);
}
/* and now we 'point' the pointers */
for (k = 0; k < nrows; k++)
{
rptr[k] = aptr + (k * ncols);
}
 for(i=0 ; i<Total; ++i) 
    {
    printf("Enter data row wise: ");
    scanf("%d", &aptr[i]);
    }
printf("\n\nAnd now we print out the array\n");
for (row = 0; row < nrows; row++)
{
for (col = 0; col < ncols; col++)
{
printf("%d \t", rptr[row][col]);}
printf("\n\n");
getchar();

       }   free(rptr);
       free(aptr);  }