Is this answer to [How to include a dynamic array INSIDE a struct in C?] correct?

Question

Could someone tell me if this answer is correct!? I'm not sure about the allocation of the second struct:

struct dyn_array my_array = malloc(sizeof(struct dyn_array) + 100 * sizeof(int));

Shouldn't my_array be a pointer, like this:

struct dyn_array *my_array = malloc(sizeof(struct dyn_array) + 100 * sizeof(int));