Dynamic memory allocation of 2D array

[bhadmanathan]

Hello experts,
I am having some doubts in Dynamic allocation of 2D array..

I understood the allocation using array of pointers.

int *arr[r];
for (i=0; i<r; i++)
arr = (int *)malloc(c * sizeof(int));

but having doubts in pointer to pointer..

int **arr = (int **)malloc(r * sizeof(int *));
for (i=0; i<r; i++)
arr = (int *)malloc(c * sizeof(int));

I dont understand what (int **arr) comes to tell...


Thanks in advance

 

[horace1]

if you do a web search for "malloc 2D array" you will get many links code examples and to discussions of problems