Programming Forums > Application Development > C++

Haz · Dec 4th, 2005, 3:18 PM

Hullo,

I'm trying to reduce the number of dots being printed to the screen, here's the code I attempted at trying:

         else {
                dots++;
                dots %= 10;
                if ( dots = 0 ) {              
                cout << "...\n"; // If "hsr" isn't an integer, output "..." to the screen
                }
              }

It increments dots, peforms a modulo operator, and if it's dividable (sp?) by 10, it prints the dots, but I tried this and it doesn't seem to work (it doesn't print ANYTHING now). I was wondering what I was doing wrong and how to put it right.

Thanks,

Haz.

UnKnown X · Dec 4th, 2005, 3:20 PM

A common error.

(Toggle Plain Text)

if ( dots = 0 )  // WRONG
if (dots == 0 )  // RIGHT

I think you can spot the error.

Haz · Dec 4th, 2005, 3:22 PM

Ah, damn, I knew it was something simple, thanks

lectricpharaoh · Dec 5th, 2005, 8:30 AM

Quote:

Originally Posted by Haz

Ah, damn, I knew it was something simple, thanks

I've said it before, and I'll say it again: if you regularly have this kind of error, you should get in the habit of sticking the constant on the left-hand side of a comparison. Then, if you type something like

(Toggle Plain Text)

if(0 = dots)

you will get a compiler error (constants aren't lvalues). I don't use this trick very often, but I also am comfortable with == instead of =. It's a great trick for people migrating from a language like VB, though, where they have no distinction between the two.

Dec 4th, 2005, 3:18 PM	#1
Haz Programmer Join Date: Feb 2005 Location: England Posts: 37 Rep Power: 0	Controlling Number Of Dots With Modulo Hullo, I'm trying to reduce the number of dots being printed to the screen, here's the code I attempted at trying: (Toggle Plain Text) else { dots++; dots %= 10; if ( dots = 0 ) { cout << "...\n"; // If "hsr" isn't an integer, output "..." to the screen } } else { dots++; dots %= 10; if ( dots = 0 ) { cout << "...\n"; // If "hsr" isn't an integer, output "..." to the screen } } It increments dots, peforms a modulo operator, and if it's dividable (sp?) by 10, it prints the dots, but I tried this and it doesn't seem to work (it doesn't print ANYTHING now). I was wondering what I was doing wrong and how to put it right. Thanks, Haz. __________________ MY BLOG :eek: AND WEBSITE :eek:

Dec 4th, 2005, 3:20 PM	#2
UnKnown X Hobbyist Programmer Join Date: Dec 2005 Location: Sandvika, Norway Posts: 114 Rep Power: 0	A common error. (Toggle Plain Text) if ( dots = 0 ) // WRONG if (dots == 0 ) // RIGHT if ( dots = 0 ) // WRONG if (dots == 0 ) // RIGHT I think you can spot the error.

Dec 4th, 2005, 3:22 PM	#3
Haz Programmer Join Date: Feb 2005 Location: England Posts: 37 Rep Power: 0	Ah, damn, I knew it was something simple, thanks __________________ MY BLOG :eek: AND WEBSITE :eek:

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Programming Forums > Application Development > C++

Controlling Number Of Dots With Modulo