When to use different integer types?

Question

Programming languages (e.g. c, c++, and java) usually have several types for integer arithmetic:

• signed and unsigned types
• types

Answer 1

Maybe just for fun, here you have a simple example showing how according to what type you choose you have one result or an other.

Naturally the actual reason why you would choose one type or an other, in my opinion, is related to other factors. For instance the great shift operator.

#include 
#include 
using namespace std;

int main()
{
    int i;

    //unsigned long long x;
    //int x;
    short x;

    x = 2;
    for (i=2; i<15; ++i)
    {
        x=pow(x,2);
        cout << x << endl;
    }
    return 0;
}