How to declare array of 2D array pointers and access them?
        Posted  
        
            by vikramtheone
        on Stack Overflow
        
        See other posts from Stack Overflow
        
            or by vikramtheone
        
        
        
        Published on 2010-05-27T14:12:07Z
        Indexed on 
            2010/05/27
            14:21 UTC
        
        
        Read the original article
        Hit count: 292
        
Hi Guys, How can I declare an 2D array of 2D Pointers? And later access the individual array elements of the 2D arrays.
Is my approach correct?
main()
{
 int i, j;
 int **array[10][10];
 int **ptr = NULL;
 for(i=0;i<10;i++)
 {
    for(j=0j<10;j++)
     {
        alloc_2D(&ptr, 10, 10);
        array[i][j] = ptr;
     }
  }
//After I do this, how can I access the individual 2D array
//and then the individual elements of the 2D arrays?
}
void alloc_2D(float ***memory, unsigned int rows, unsigned int cols)
{
    float **ptr;
    *memory = NULL;
    ptr = malloc(rows * sizeof(float*));
    if(ptr == NULL)
    {
        status = ERROR;
        printf("\nERROR: Memory allocation failed!");
    }
    else
    {
        int i;
        for(i = 0; i< rows; i++)
        {
            ptr[i] = malloc(cols * sizeof(float));
            if(ptr[i]==NULL)
            {
                status = ERROR;
                printf("\nERROR: Memory allocation failed!");
            }
        }
    }
    *memory = ptr;
 }
        © Stack Overflow or respective owner