>> is there any performance gap using auto instead of int or other>> type? For >> example>> >> int[] ar1 = new int[1000];>> auto[] ar2 = new int[1000];>> >> >> are these equivalent by a perfomance point of view? >> Well the runtime performance is equal but of course compilation takes > slightly longer since it has to deduce the type first.
The type has to be deduced anyway for type checking the assignment/initialization.
