problem with nested loops

[longbowaj]

When i use the following code all works well for a while. If you enter the inner loop once it works fine but will not allow to enter it a second time. can someone explain this to me please or show me how to enter it again. thanks. #include using namespace std; int main () { int number; int testval = 0; while (true) { cout << "Pick a number 4 quits" << endl; cin >> number; if (number == 4) { return 0; } else if (number == 1) { while (testval != 5) { cout << "pick a new number: "; cin >> testval; if (testval == 1) { cout << "inner loop 1" << endl; } else if (testval == 2) { cout << "inner loop 2" << endl; } else { cout << "inner loop 3" << endl; } } } else if (number == 2) { cout << "outer loop 1" << endl; } else { cout << "outer loop 2" << endl; } } }

[Mark Salsbery]

Can you wrap your code in pre tags instead of code tags? Unindented code is hard to read (for me anyway :)) Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

[longbowaj]

sure thing

#include using namespace std;

int main () {
int number;
int testval = 0;

while (true) {
	cout << "Pick a number 4 quits" << endl;
	cin >> number;
	if (number == 4) {
		return 0;
	}
	else if (number == 1) {
		while (testval != 5) {
			cout << "pick a new number: ";
			cin >> testval;

			if (testval == 1) {
				cout << "inner loop 1" << endl;
			}
			else if (testval == 2) {
				cout << "inner loop 2" << endl;
			}
			else {
				cout << "inner loop 3" << endl;
			}
		}
	}
	else if (number == 2) {
		cout << "outer loop 1" << endl;
	}
	else {
		cout << "outer loop 2" << endl;
	}
}

}

[Mark Salsbery]

Once testval has been set to five in the inner loop then the inner loop will never be entered again because testval is still 5. Try this:

int main ()
{
int number;
int testval = 0;

while (true)
{
cout << "Pick a number 4 quits" << endl;
cin >> number;
if (number == 4)
{
return 0;
}
else if (number == 1)
{
while (testval != 5)
{
cout << "pick a new number: ";
cin >> testval;

        if (testval == 1) 
        {
           cout << "inner loop 1" << endl;
        }
        else if (testval == 2) 
        {
           cout << "inner loop 2" << endl;
        }
        else 
        {
           cout << "inner loop 3" << endl;
        }
     }
     `**testval = 0;**`
  }
  else if (number == 2) 
  {
     cout << "outer loop 1" << endl;
  }
  else 
  {
     cout << "outer loop 2" << endl;
  }

}
}

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

[longbowaj]

ahhh i'm silly sometimes. thank you much for that i was going nuts truing to figure it out.

[realJSOP]

You just completed a homework assignment for him...

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

[Mark Salsbery]

:doh:

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder