Assign Memory to 3D array using triple pointer

Question

I have to assign memory to a 3D array using a triple pointer.

#include 
int main()
{
    int m=10,n=20,p=30;
    char ***z;
    z = (char***)          


        

Answer 1

To completely allocate a 3D dynamic array you need to do something like the following:

#include 
#include 

int main()
{
    int m=10,n=20,p=30;
    char ***z;

    z = malloc(m * sizeof(char **));
    assert(z != NULL);
    for (i = 0; i < m; ++i)
    {
        z[i] = malloc(n * sizeof(char *));
        assert(z[i] != NULL);
        for (j = 0; j < n; ++j)
        {
            z[i][j] = malloc(p);
            assert(z[i][j] != NULL);
        }
    }
    return 0;
}

Freeing the data is left as an exercise for the reader.