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nested while loop

 
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nested while loop
sumlani
26 Jan, 2008 - 11:09 AM
Post #1

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CODE
#include <iostream>

using namespace std;

int main()
{
    const int SRC_SIZE = 22;
    int step_number = 1,
    x_count = 1;
    while (step_number <= SRC_SIZE)
    {
     ++step_number;
    cout << endl;
    while (x_count <= step_number)
         ++x_count;
         cout << "X";
     }
     cout << endl;
     return 0;
}


I know that the second loop is not working. I'm not understanding the use of EOF.

currently my output looks like this:
X
X
X

It should be:
X
XX
XXX
XXX etc... Help, I just need a better explanation then what my textbook is giving me.
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GWatt
RE: Nested While Loop
26 Jan, 2008 - 11:31 AM
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You're missing braces after your second while loop. It's perfectly legal to not put braces, but only the line immediately following the while loop will be executed.
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Jingle
RE: Nested While Loop
26 Jan, 2008 - 11:45 AM
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QUOTE(GWatt @ 26 Jan, 2008 - 12:31 PM) *

You're missing braces after your second while loop. It's perfectly legal to not put braces, but only the line immediately following the while loop will be executed.

and
CODE

#include <iostream>

using namespace std;

int main()
{
    const int SRC_SIZE = 22;
    int step_number = 1,
    x_count = 1;
    while (step_number <= SRC_SIZE)
    {
        //++step_number;                     // I moved this
        cout << endl;
            while (x_count <= step_number)
            {
                ++x_count;
                cout << "X";
            }
            x_count = 1;   // you were forgeting to set x_count back to 1 so it was always one les than step_number
                ++step_number;            //to here
    }
    cout << endl;
    return 0;
}



This post has been edited by Jingle: 26 Jan, 2008 - 12:18 PM
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sumlani
RE: Nested While Loop
26 Jan, 2008 - 02:19 PM
Post #4

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QUOTE(Jingle @ 26 Jan, 2008 - 12:45 PM) *

QUOTE(GWatt @ 26 Jan, 2008 - 12:31 PM) *

You're missing braces after your second while loop. It's perfectly legal to not put braces, but only the line immediately following the while loop will be executed.

and
CODE

#include <iostream>

using namespace std;

int main()
{
    const int SRC_SIZE = 22;
    int step_number = 1,
    x_count = 1;
    while (step_number <= SRC_SIZE)
    {
        //++step_number;                     // I moved this
        cout << endl;
            while (x_count <= step_number)
            {
                ++x_count;
                cout << "X";
            }
            x_count = 1;   // you were forgeting to set x_count back to 1 so it was always one les than step_number
                ++step_number;            //to here
    }
    cout << endl;
    return 0;
}





Thank you so much, I have been trying to get this all morning. I can't believe it was something this simple (I really can :-))! Your the greatest!!
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