Return whole array

Question

Can someone tell how i can return a whole array from a function to my main function? And can i do arr[] = arr2[];?

Answer 1

And you have the option not to return an array, but just hand over its address to the function and fill it right there:

int do_stuff_with_array(int *array, int size) {
// And here you do with it whatever you need
}

Answer 2

Sers!

This is where it gets a bit complicated. You want to check the tutorial sections about pointers and dynamic memory.

Returning an array is not possible in C, but returning a pointer is:

int* make_array () {
int* a = malloc(4 * sizeof(int));
return a;
}

int main () {
int* p = make_array();
p[3] = 1234;
free(p);
}

Note how we're dealing with pointers here but at the end I'm still using `p` like an array. That's because in C, there is no difference between a pointer and an array.

If you have any questions just let me know.