Booleans

[zero117]

Hello again, I would like to know if someone could give me a rundown of how setting a basic boolean return function goes. For example; If the user enters 5 return truth. else false. But of course without using "cout>>"false" or vice versa. Thanks in advance.

P.S. Although unrelated for those wondering why I'm asking this it's just to clarify a few things, I'm not so lazy as to make someone write my code for me which I'm saddened to have discovered is what many have done and will do. I actually enjoy spending late nights constantly checking my own code over and over telling myself I know this.

[Lowest0ne]

bool checkNum(int toCheck, int against)
{
  return toCheck == against;
}

int main(void)
{
  int i = 0;
  int input;
  do
  {
    cout << "guess my number: ";
    cin >> input;
  }
  while (!checkNum(input, i) && i++ < 5);

  if (checkNum(i , 6))  cout << "I win\n";
  else cout << "You win\n;
  return 0;
} 

[cire]

I don't know what a return function is, much less a basic boolean return function.

bool return_true_if_user_entered_5()
{
    int value = 0 ;
    std::cin >> value ;
    return value == 5 ;
}

[zero117]

Sorry if that didn't answer my question. What would be the basic layout?

Like for if statements we have

If(condition)
{
statement;
}

[Chervil]

zero117 wrote:

boolean return function

A very verbose approach:

bool test(int n)
{
    bool result;

    if (n == 5)
        result = true;
    else
        result = false;

    return result;
}

More concisely:

bool test2(int n)
{
    return (n == 5);
}

[zero117]

Got it to work, thanks. I'd just like to ask how can i change if it displays the actual words "true" or "false" , instead of it's interpretation being 0s or 1s. or is that as much as I'm allowed since I asked for a bool return type?

 
if((num1==num7) && (num2==num6) && (num3==num5))
    {
        final=true;
    }

    else
    {
        final=false;
    }

    return final;

Just a sample of the piece I needed help with, I had everything except the bool piece, sadly I didn't remember that while I declared a bool return type I would have to declare a bool somewhere inside.

[Chervil]

You are allowed to use the true/false value to control anything you wish. That's what it's there for. Just test the result using an if statement.

(or perhaps use the conditional operator).

[Lowest0ne]

Do you mean something like this?
http://www.cplusplus.com/reference/iostream/manipulators/boolalpha/

[zero117]

LowestOne had the right idea. Internet went out, so I went over my notes and found the whole Boolalpha reference. Thank you very much either way.