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Using do while to print # of words per line...

This is a discussion on Using do while to print # of words per line... within the C++ Programming forums, part of the General Programming Boards category; Hi, I can make do while loop to work here. It is suppost to print user defined(numPerLine) words per line ...

  1. #1
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    Using do while to print # of words per line...

    Hi, I can make do while loop to work here. It is suppost to print user defined(numPerLine) words per line but for some reason it prints all in one line. I know something is wrong with my do while. Didn't practice do while enough and now i am having trouble (I like fro loop )

    Code:
    #include <iostream>
    #include <iomanip>
    
    using namespace std;
    
    //function prototypes
    
    int getNumber();
    int printnumPerLine();
    void printResult(int, int);
    
    int main()
    {
    int num;
    int numPerLine;
    
    num = getNumber();
    numPerLine = printnumPerLine();
    printResult(num, numPerLine);
    }
    
    //get input from keyboard and return it to caller
    int getNumber()
    {
    int num;
    	cout << "\n\nPlease enter a non-negative number: ";
    	cin >> num;
    	
    	return num;
    }
    
    int printnumPerLine()
    {
    	int numPerLine;
    
    	cout << "\nHow many numbers per line? ";
    	cin >> numPerLine;
    
    	return numPerLine;
    }
    //print our result
    void printResult(int num, int numPerLine)
    {
    	int i = 0;
    
    	do{
    		cout << setw(4) << i;
    		i++;
    	} while (i<=num);
    		
    	if(i % numPerLine == 0){
    			cout << endl;
    	}
    	cout << endl << endl;
    }
    Thanks

    sorry, I had to post it again because I unintentionally posted it to C forums instead.
    Last edited by Iron Hide; 05-11-2011 at 05:09 PM.

  2. #2
    Programming Wraith GReaper's Avatar
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    Untill you pass 'cout' a newline character '\n' or 'endl', it will keep printing on the same line.
    Devoted my life to programming...

  3. #3
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    Where do I need to enter endl?

    I did it here:
    Code:
    if(i % numPerLine == 0){
    	cout << endl;
    Thanks

  4. #4
    and the Hat of Guessing tabstop's Avatar
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    Quote Originally Posted by Iron Hide View Post
    Where do I need to enter endl?

    I did it here:
    Code:
    if(i % numPerLine == 0){
    	cout << endl;
    Thanks
    You've already printed all the numbers by the time you get there, since that is after your loop. Perhaps you intended to place it inside the loop?
    Iron Hide likes this.

  5. #5
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    works! I tried pacing it various paces but this one Thanks

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