Question

What is Boolean function

Answer 1

Boolean things deal with bits: 0 and 1 or false and true.

Answer 2

A simple definition would be: a function which returns either TRUE or FALSE or 1 or 0 depending on the language. C++ returns 1 or 0.

#include <iostream>

using namespace std;

bool Equal (int num1, int num2)
{
return (num1 == num2);
}

int main()
{
cout << Equal(5, 7) << endl;
cout << Equal(5, 5) << endl;
return 0;
}

If you run this program the output will be:
0
1