I think I have to set "length" first.
Yes.
Declaring
BitArray b;
is like declaring
int[] a; // ={.length = 0, . ptr = null}
you get the segfault for invalid dereference.
I think I have to set "length" first.
Yes.
Declaring
BitArray b;
is like declaring
int[] a; // ={.length = 0, . ptr = null}
you get the segfault for invalid dereference.