How to refer to a variable ?

Question

Hi am trying to write a code like this
Int i = 3
Pi

I want the Pi to turn into P3 in this case , how can I do that ? Thanks in advance

Answer 1

Dyary If what is printing out P3 you can do this:

cout << "P" << i << endln;

But if what you want is use P3 in an expression like: P3 + 2
I don't know if that is possible.
First because in C++ you need to declare a variable before using it
second, I believe there is no eval function in C++, althought, I'm not
sure.
An eval function would receive a string and evaluate it like an expresion:

eval('P3 + 2');

But I believe only dinamic programming languages have such function.

Answer 2

May I ask why you'd like to do that?
If it's about using several Pi's, better use an array P

Answer 3

Yea it for several Pi’s. I used an ary it works that way. Thanks