How to dynamic allocate a two dimensional array

Question

I would like to make a two dimensional array in C.

For example, I make an int type variable named place like this:

int *place;

I ha

Answer 1

You need to do the following to allocate arr[x][y] of type int dynamically:

 int i = 0;
 int **arr = (int**)calloc(x, sizeof(int*));
 for(i = 0; i < x; i++)
      arr[i] = (int *) calloc(y, sizeof(int));

The idea is to first create a one dimensional array of pointers, and then, for each array entry, create another one dimensional array.