Question

#include <iostream>
#include <cmath>
#include <string>
using namespace std;

string STRING;

     bool isEqual(double a, double b)
    {
        return  fabs(a-b) ==0;
    }

int main()
{
   STRING = isEqual(3,3); <--------HERE'S THE MAIN PROBLEM

cout << STRING;


    return 0;
}

I’m having trouble setting the output I get from a boolean, be it “true” or “1” equal to a String.Also is it possible to use boolalpha and combine it with “isEqual()”
so I can just type

cout <<isEqual(3,3) and it gives me "true" 
instead of having to type "cout << boolalpha<<isEqual(3,3) everytime".

Answer 1

std::string s = isEqual(3,3) ? "true" : "false";

also: you should in isEqual not compare with 0 but with a small value like <0.00001