Return Array in C?

Question

I cant return array in c,i am quite new to C so i probably do some kind of funny mistake, here is the code:

#define MAXSIZE 100
int recievedNumbers[MAXSI         


        

Answer 1

You can not assign to an array from an expression:

int recievedNumbers[MAXSIZE];
...
recievedNumbers = getACOfNumber(256);

Instead:

memcpy(receivedNumbers, getACOfNumber(256), sizeof(receivedNumbers));

An notice that you are using a local array whose lifetime ends with the function, change to

static int theArray[100];

or better yet

int *theArray = calloc(100, sizeof(*theArray)); /* Zero initializes the array */

don't forget to call free at the end:

int *temp = getACOfNumber(256);

memcpy(receivedNumbers, temp, sizeof(receivedNumbers));
free(temp);

But why don't you pass the original array to the function?:

getACOfNumber(receivedNumbers);
...
void getACOfNumber(int *theArray) {