How can I use a function in a condition and check whether it's true or not?

Answer 1

Xx Yyy

Your function should return a value then you can use that function in a condition.

Like:

bool isPalindrome() {
return true;
}

Now use in condition like:

if (isPalindrome ()) {
cout << "Palindrome";
}

Answer 2

And if it wasn't a palindrome I will use else?

Answer 3

Xx Yyy

There might be 2 situation one is yes and one is no so if condition is true then if block will execute otherwise else block.

Answer 4

if (function()) {...}

Note that function must return a Boolean or something that can be understood as a Boolean (e.g. an int)