Is there a better way to do this? [Splitting an equation]

Question

Code that takes an equation.
Splits it in numbers and operators +-/*().
And stores them in order in an array.

Also <boost> didn't work for me. Therefore i tried it on this way and i didn't get String streams, yet.

https://code.sololearn.com/cEHuRZ7T7jrD/?ref=app

Answer 1

Actually not what i wanted to know right now. But you made the next step easier for me