On 6 jun, 12:20, Stefan Istrate <stefan.istr...@gmail.com> wrote:
> Hello,
> I have the following code and I still don't know why it prints "10 10"
> instead of "5 10".
>
> #include <iostream>
> using namespace std;
>
> class A {
> static int i;
> public:
> static int get_i() {
> return i;
> }
> static int dbl() {
> i = i * 2;
> return i;
> }
>
> };
>
> int A::i = 5;
>
> int main() {
> cout << A::get_i() << " " << A::dbl() << endl;
> return 0;
>
> }
>
> Can anyone me understand this?
> Thank you,
> Stefan Istrate

Others have clarified that but there is one more subtle point to
state, maybe. The function calls can have some side effects, such as
throwing exceptions and so on. Therefore, it is best to keep the
output operations seperate from the function calls. Some experinced
will comment on this maybe...