[Chase]

I have recently been studying arrays and tried to write a console application that would intake, store, display, and display the sum of numbers input by the user but I keep getting an error! Why? What have I done? It appears to be correct but maybe I am just frustrated! Please help if you can.

//This prorgam inputs, stores, displays, and sums an array
//entered by the user.

#include <cstdio>
#include <cstdlib>
#include <iostream>

using namespace std;

//declare protos

void displayArray(int indexOfArray, int arrayA[]);
int sumArray(int indexOfArray, int arrayB[]);


int main(int argc, char *argv[])
{
    cout << "This program allows you to enter an array which is\n"
         << "then stored, summed, and ouput at the end of the program.\n"
         << "To terminate the program simply enter any negative number.\n"
         << endl;
    
    //Declare the array for 100 numbers
    int mainArray[100];
    
    //start loop    
    for (int arrayCount = 0; arrayCount < 100; arrayCount++)
    
    {
        cout << endl
             << "Input your next number in the array: ";
             
        
        //delcare input variable     
        int arrayInput;
        
        cin >> arrayInput;
        
        //check to make sure user wants to continue
        if (arrayInput < 0)
        {
                       break;
                       }
                       
        //else continue on and store the value in the array
        mainArray[arrayCount] = arrayInput;
        
        //jump back to the top of the loop and start over
        
        }
    
    //here the user has exited the loop with a negative and is going
    //to now see the containments and sum of the array
    
    cout << "\n\nYou have entered a negative number.\n\n"
         << "The sum of your array is: "
         << sumArray(arrayCount, mainArray)
         << "\n\nThe containments of your are are: \n\n";
         displayArray(arrayCount, mainArray);

         
    
    system("PAUSE");
    return EXIT_SUCCESS;
}

//Sum Array - this function sums the numbers in the array
int sumArray(int indexOfArray, int arrayB[])
{
    int accumulator = 0;
    for (int i = 0; i < indexOfArray; i++)
    {
        accumulator += arrayB[i];
    }
    return accumulator;
}

                 
//Display Array - this function shows the containments of an array
void displayArray(int indexOfArray, int arrayA[])
 {
    cout << "The value of the array is:" << endl;
    for (int i = 0; i < indexOfArray; i++)
    {
        cout.width(3);
        cout << i << ": " << arrayA[i] << endl;
    }
    cout << endl;
}

The bold code is where I get the error Dev-C++ says "In function 'int main(int, char**)':
name lookup of 'arrayCount' changed for new ISO 'for' scoping
using obsolete binding at 'arrayCount'



Thanks for any help,

::-Chase-::

[jaeusm]

You're getting an error because 'arrayCount' is out of scope. You declared it in your 'for' loop, which means it only exists within the 'for' loop. If you want to use the variable outside the loop, declare it outside the loop like this:

int arrayCount;
for (arrayCount=0; arrayCount<100; arrayCount++)
{
     ....
}

[Chase]

Thanks for the help! Greatly appreciated. I can't belive I made such a 'noob' (if you will) mistake...argg...oh well, at least now I will remember...thanks again!

::-Chase-::