Thread: Confused with double pointers

I have been trying for hours to create a specific prototype program that determines a pascal's triangle for a give number of rows. However, prototype must have the return type of int**. I just recently learnt about pointers and I would really appreciate it if anyone could give me a hint as to why my attempt of the function doesn't work.
As well, i am not sure how I can check if my return value actually points to the pascal triangle.

Code:

#include <stdio.h>
#include <stdlib.h>


int **getPascalTriangle(int n)
{
    int i, j, value;
    int *c;
    int ** pp;
    int k, gap;


    c=(int*)malloc(n*sizeof(int));


    printf("\n");
    gap=n;


    for(i=0;i<=n-1;i++)
    {   value=1;


        for(k=gap;k>=0;k--)
            printf(" ");
            gap--;


            for(j=0;j<=i;j++)
                {
                c=&value;
                value=(*c*(i-j)/(j+1));
                }


        printf("\n");
}
    *pp=c;
    return pp;
}


 int main(void)
{
    int n;


    printf("Please enter value for number of rows in PAscal's triangle:");
    scanf("%d",&n);


    getPascalTriangle(n);




    return 0;
}