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Join Date: Oct 2007

Posts: 32

Reputation: Max_Payne is an unknown quantity at this point

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Max_Payne

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Counter

Dec 14th, 2007

I want to increment the i without putting the whole statement in a loop.

 Help with Code Tags 
 c++ Syntax (Toggle Plain Text) 
#prag...
ostream &operator << ( ostream &output, const Course &xCourse )
{
	int i = 0;
 
 
        output << "  " << i++ << ".| " << xCourse.code << "    |  " << xCourse.section << "       |" << endl
                  << "    -----------------------";
 
	return ( output );
}
#prag...
ostream &operator << ( ostream &output, const Course &xCourse )
{
	int i = 0;


        output << "  " << i++ << ".| " << xCourse.code << "    |  " << xCourse.section << "       |" << endl
                  << "    -----------------------";

	return ( output );
}

Any ideas on how to do that.

tx.

Last edited by Max_Payne; Dec 14th, 2007 at 12:37 am.

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Join Date: Aug 2007

Posts: 1,678

Reputation: vmanes is a splendid one to behold

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vmanes

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Re: Counter

Dec 14th, 2007

Do you mean that you want i to be one larger every time you call the function to output a line?

How about making it a static variable, as in:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
ostream &operator << ( ostream &output, const Course &xCourse )
{
	static int i = 0;
 
        output << "  " << i++ << ".| " << xCourse.code << "    |  " << xCourse.section 
                  << "       |" << endl  << "    -----------------------";
 
	return ( output );
}
ostream &operator << ( ostream &output, const Course &xCourse )
{
	static int i = 0;

        output << "  " << i++ << ".| " << xCourse.code << "    |  " << xCourse.section 
                  << "       |" << endl  << "    -----------------------";

	return ( output );
}

Does that work for a class member?

Val

Last edited by Ancient Dragon; Dec 14th, 2007 at 12:58 am. Reason: Corrected bold tag

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Join Date: Oct 2007

Posts: 32

Reputation: Max_Payne is an unknown quantity at this point

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Max_Payne

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Re: Counter

Dec 14th, 2007

Yes it works for a class member.. I can't believe i forgot about the static ...

Thank You...

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Ancient Dragon Ancient Dragon is offline

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Re: Counter

Dec 14th, 2007

If you use static the value of i will be the same for all instances of the class and there will be no way to reset it back to 0 if you need to. I think a better solution is to use a different variable name and make it a class object so that each instance of the class has its own variable and you can reset it to 0 whenever you need to.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.