Array objects can be of two types:

• static: its dimensions have a fixed size

  double arr_static[4][2] = {};

• dynamic: its first dimension has no fixed size

  double arr_dynamic[][2] = {};

An array can be passed to a function only by reference and can only be of dynamic type:

void OnStart() {
  double arr_a[] = {};
  double arr_b[][2] = {};
  double arr_c[4][2] = {};
 
  function(arr_a, arr_b, arr_c);  
}
 
void function(double &arr_a[], double &arr_b[][2], double &arr_c[][2]) {
  Print("size ", ArraySize(arr_a));  // size 0
  Print("size ", ArraySize(arr_b));  // size 0
  Print("size ", ArraySize(arr_c));  // size 8
}