Question

Could anyone please tell me how to check what number I’ve got from a * b? Which is I would like to know every part of this number so for example if the result from this expression would be 25 I would like to know that first digit is two and second digit is five.

Answer 1

perhaps a little overkill… but even works with doubles

#include <sstream>
#include <iostream>

int main()
{
    double a = 5.2;
    double b = 7;
    double z = a*b;

    std::stringstream s;
    s << z;

    for (int i = 0; i < s.str().length(); i++)
        std::cout << i << ": " << s.str()[i] << std::endl;

    return 0;
}