About ==

Question

Why the output isn't "yes"??

#include <iostream>
using namespace std;

int main()
{
float z=0.1;
if (z == 0.1) {
cout << "Yes";
}
else
cout << z;
return 0;
}

Answer 1

Because floating point literals are considered double by default.

Use 0.1f in your condition to make it pass the if clause.