Comments on: 2.6 — Boolean Values

By: gurbux

gurbux — Sat, 26 Jun 2010 15:51:16 +0000

hey nice explanation alex very helpfull………..

By: joha

joha — Wed, 23 Jun 2010 00:16:32 +0000

wouldnt it be the same to put instead of x==y, this: x=y????
i tried and got the same result so…..what is the difference and when do I use each operator????

Thanks..

By: Bertha

Bertha — Fri, 07 May 2010 00:21:42 +0000

stream sex

By: Guntis

Guntis — Thu, 25 Mar 2010 16:22:20 +0000

Yay, I think I completely understand how bool works now. Thanks Alex, this is so much better than even some of those books on cpp. P.S. Here's my little test that succeeded btw.

bool isEqual(int x, int y)
{
	return (x == y);
}
int main()
{
	cout << "Enter a value:\t\t ";
	int x;
	cin >> x;

	cout << "Enter another value:\t ";
	int y;
	cin >> y;

	if (isEqual(x, y))
		cout << "Numbers were equal!" << endl;
	else
		cout << "Numbers were not equal" << endl;

	bool bZero(1);

	if (x == 0)
		bZero = 1;
	else 
		if (y == 0)
			bZero = 1;
		else 
			bZero = 0;
	
	if (bZero == 1)
		cout << "One of numbers was 0" << endl;
	else 
		return 0;
	

}

By: Mac

Mac — Thu, 25 Mar 2010 02:42:32 +0000

Hi, i tried to make this program work with three numbers:

i.e.
return (x == y == z)

the program compiled fine and ran, but did only gave the result for “else” (false)

after i took away “int z” it worked just fine…

does bool only work for two variables?

By: Stephan

Stephan — Mon, 15 Mar 2010 10:00:50 +0000

Hi Alex (Admin)!

Great site.
Just wanted to say that I find your site extremely educational, and for me, easy to follow. Good work!

P.S.
I get just as much fun/learning reading the comments at the end of the tutorial as I do from the lessons. I can’t finish a section without reading the comments!

Brilliant!!!

By: dawit

dawit — Fri, 15 Jan 2010 11:47:05 +0000

wath is break;

By: Daniel

Daniel — Mon, 26 Oct 2009 08:35:35 +0000

I’ve never seen that type of assignment used for a built-in, although I do not doubt that it works. I believe that “int i = 1;” uses int’s default constructor THEN uses int’s assignment operator. Whereas “int j(1);” uses a version of int’s constructor which accepts an integer. In theory the second should be more efficient although compilers are most likely smart enough to optimise away the extra step.

By: Collin

Collin — Sun, 25 Oct 2009 15:57:32 +0000

the if statement calls the function to check if (x==y)

if (IsEqual(x, y))
cout << x << " and " << y << " are equal"<

By: Alex

Alex — Mon, 31 Aug 2009 10:24:40 +0000

Could someone please give me a definitive answer about the difference between explicit and implicit assignments.


int i = 1;
int j(1);

Thanks