How to resize dynamic array?

Answer 1

Arrays have fixed sizes, static or dynamic doesn't matter. You can use various methods instead of trying to resize an array:

You can declare another larger array and dispose off the earlier one after copying it's values.

Another option is to use vector in C++.

PS: If you have to resize a lot, use a Linked List instead.

Answer 2

Pointer arrays:

int *x;

x = (int *) malloc(nr_of_ints * sizeof(int));
x = (int *) realloc(x, new_size * sizeof(int));
free(x);