Question

I declared an array of struct and initialized it at compile time.

Now, for unit testing purposes, I would like to initialize it from a function which I can call from main() and from my unit tests.

For some reason, probably involving a 16 hour coding marathons & exhaustion, I can’t figure it out.

Answer 1

So assuming you have

struct foo {
   int a;
   int b;
};

struct foo foo_array[5] = {
 { 0, 0 }, { 1, 1 }, { 2, 2 }
};


int main() { 
     memcpy(foo_array, some_stuff, sizeof(foo_array)); // should work
    ...

OR you could:

int main() {
    int i;
    for ( i = 0; i < sizeof(foo_array)/sizeof(struct foo); i++ ) {
           init(&foo_array[i]);
    }
}

but without looking at your code it’s hard to say what’s causing the trouble… i am SURE it’s probably something very trivial you are overlooking because you are tired and have been at it for 16 hours.