Program crashing when sending struct array - c

Question

I'm having a headache here trying to solve this. The thing is, I'm trying to initialize a struct array by sending its address from the main() function to its specific function (in which initialize it). But when I run it, it just crashes all the time. But, the program goes until that flag over there! Please help me out
ps:
The error message says:
45 [Warning] passing argument 1 of 'initfunc' from incompatible pointer type [enabled by default]
typedef struct{
int code, year, rentstate;
char type[50];
float price;
}CAR;
void initfunc(CAR *car[]){
int i;
printf("flag ok");
for(i=0;i<50;i++)
{
car[i]->code = 0;
printf("initializing...");
}
getch();
}
int main(int argc, char const *argv[])
{
int opt, a=0;
CAR car[50];
initfunc(car);

Answer 1

CAR *car[]
means array of CAR pointers.
You want to send CAR car[] array of structure CAR.
Also as you pass the array of CAR you can access it like this car[i].code or car[i].year etc.
You would have to access code like it, if it was a CAR* not CAR.
For example:
CAR *car = malloc( sizeof *car);
...
(*car).code = //..
equivalently
car->code = //...
In your case the code would be
void initfunc(CAR car[]){ // void initfunc(CAR *car)
printf("flag ok");
for(size_t i = 0; i < 50; i++)
{
car[i].code = 0;
printf("initializing...");
}
getch();
}
OP asked why changing the array to the called function changes the array in main()?
Since we are actually passing pointer to the original array, change in the called function modifies the original array. In C, except for a few special cases, an array reference always "decays" to a pointer to the first element of the array.
In C everything is pass-by-value. So the pointer variable that we see in called function contains the copy of the address. Any changes made to the array elements (by de-referencing the pointer) do affect the original array, [since only the array address is copied (not the array elements themselves)].
Simply put, here you pass the address of the 0-th element of the array and then that is accessed. That's why the change is reflected because you are accessing the original elements via pointer, not the copies of them.

Answer 2

I just tried like this:
typedef struct{
int code, year, rentstate;
char type[50];
float price;
}CAR;
void initfunc(CAR car[]){
int i;
printf("flag ok");
for(i=0;i<50;i++)
{
car[i].code = 0;
printf("initializing...");
}
getch();
}
int main(int argc, char const *argv[])
{
int opt, a=0,i ;
CAR car[50];
for(i=0;i<50;i++){.
car[i].code = -1;
printf("%d", car[i].code);
}// RECEIVING -1 JUST TO TEST IF IT REALLY CHANGES AFTER I CALL THE FUNCTION TO INITIALIZE
printf("\n\n");
initfunc(car); //HERE WE'RE SUPPOSED TO INITIALIZE
printf("\n\n");
for(i=0;i<50;i++){
printf("%d", car[i].code);
}
printf("\n\n"); // OMG THIS CANT HAPPEN, WHY IS THIS EVEN HAPPENING? IM NOT EVEN USING POINTERS!
getch();