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Weird number outputs from basic function


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#1 Bigfatmeany   Members   -  Reputation: 137

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Posted 18 February 2014 - 03:16 PM

My friend has decided to jump into C++ (which I told him wasn't the best starting language, but he insisted) as his first programming language.

He has been following these tutorials here. While he was working on functions he messaged me on skype  with a problem, he is getting a bunch of numbers from his  function. I am unable to see the problem, we could use some help with this, here is the code. 

#include <iostream>
#include <string>

using namespace std;
//Function dataType nameOffunc() {}

//function delcarations
void WelcomeMessage();
//prints a welcome message.
int calculateNum();
//Multiplies 2 intergers
//@returns product of 2 other intergers
//function in which error described occurs.

int main()
{
	int number;
	WelcomeMessage();

	cout << calculateNum << endl;
	cout << "type a number" << endl;
	cin >> number;

	return 0;
}


//function definitions
void WelcomeMessage()
{
	cout << "WELCOME" << endl;
}
int calculateNum()
{
	int x = 5;
	int y = 5;
	return (x * y);

}

what is the problem?



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#2 Bigfatmeany   Members   -  Reputation: 137

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Posted 18 February 2014 - 03:22 PM

Sorry for wasting the time of those who read this, I noticed the mistake almost as soon as I posted it. Can't believe I didn't notice it before that, rookie mistake on my part.



#3 mark ds   Members   -  Reputation: 1480

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Posted 18 February 2014 - 03:24 PM

Well, the function returns 25. What are the "bunch of numbers" he's getting?

 

Hang on... add () to the calculateNum on line 20 - he's currently printing the address of the function, not the return value.

cout << calculateNum() << endl;

Edited by mark ds, 18 February 2014 - 03:26 PM.


#4 Bigfatmeany   Members   -  Reputation: 137

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Posted 18 February 2014 - 03:27 PM

 

Well, the function returns 25. What are the "bunch of numbers" he's getting?

 

Hang on... add () the calculateNum on line 20 - he's currently printing the address of the function, not the return value.

cout << calculateNum() << endl;

Yea, Im a bit angry at myself for not noticing that he didn't add that, but we'll laugh about it soon. Atleast I'm not the only one who didn't notice it on the first time through.






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