DIFFERENT TYPE

Question

is there any other way we can add two numbers of different type? like 5+5.5. Becaus i thought template was actually useful for that purpose.

Answer 1

You don't need template for that, you can calculate with two different number types, just like you wrote.

if you use + with int and double, the result will also be a double.

If you want to store that value, you just have to watch out that the container can fit in that double.

So if you write...

int n = 5+5.5;

... the result will be a double, but because you press it in an int container, the decimals will fall right off again.

So you need to write:

double d = 5+5.5;

The other problem you could have is something like this:

double d = 5/2;

You expect to get 2.5, but instead you get 2.0.

That's because *both* the operands are int. So 5/2 is 2, and if you press that in a double, it becomes 2.0.