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How to refer to a method in another cpp file

josephawad (5)
I have this bit of code that I'm trying to make function, but Visual Studio is giving me error messages even before I compile (red lines):

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#include "Converter.h"
#include "ActionRequest.h"
#include "utilities.h"
#include <string>
#include <iostream>
#include <fstream>
using namespace std;

//const string utilities::TextItems TEXT ("Converter.txt")
//{
//
//}


int main ()
{
    char request = 'a';
        readRequest();
}


I'll also include the header and cpp files of ActionRequest:

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#include "ActionRequest.h"
#include <iostream>
#include <string>
using namespace std;

string actionRequestLine = " ";
void ActionRequest::readRequest()
{
    int invalidResponseCount = 3;
    int charCriteria;
    int actionRequestLength = 0;
    do
    {
        cout << "\nWhat kind of value would you like to convert?"
             << "\nEnter b (or B) for binary, d (or D) for decimal, "
             << "or q (or Q) to quit: ";
        getline(cin, actionRequestLine);
        actionRequestLength = actionRequestLine.length();
        char actionRequest = 'a';
        if (invalidResponseCount >= 1 && actionRequestLength == 1)
        {
            charCriteria = 1;
            actionRequest = actionRequestLine[0];
            switch (actionRequest)
            {
            case 'b': case 'B': case 'd': case 'D': case 'q': case 'Q':
                charCriteria = 1;
                break;
            default:
                charCriteria = 0;
                --invalidResponseCount;
                if (invalidResponseCount > 0)
                {
                    cout << "Error: Invalid response."
                         << "\nTry again. (You have " << invalidResponseCount
                         << " tries left.)\nPress Enter to continue ...";
                    cin.ignore(80,'\n');
                }
                break;
            }
        }

        if (invalidResponseCount == 0)
        {
            cout << "\nSorry but you are out of tries."
                 << "\nThe quit option will now be supplied."
                 << "\nPress Enter to continue ... ";
            cin.ignore(80,'\n');
            actionRequestLine = "q";
            break;
        }
    }while ((invalidResponseCount > 0) && (charCriteria=0)
           || (actionRequestLength != 1));
}

char ActionRequest::getRequest ()
{
    char actionRequest = actionRequestLine[0];
    return actionRequest;
}


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//ActionRequest.h
//Lastname:Firstname:A00123456:csc122801
//Submission 10
//Decimal/Binary Conversion, Part 3 (C++ version)

/*
 * This class is complete and working according to specifications.
 */


/**
 * A class to handle user interaction when the user is choosing
 * whether to perform a decimal or binary conversion.
 */
class ActionRequest
{
public:
    void readRequest();
    /**<
     * Prompts the user for, and then reads from the user, a request
     * for action. The prompt has the following form:
     * <pre>
     * What kind of value would you like to convert?
     * Enter b (or B) for binary, d (or D) for decimal, or q (or Q) to quit:
     * </pre>
     * The input must be an uppercase or lowercase b, d or q, and
     * the user has three attempts to enter one of these values.
     * Depending on the situation when an invalid entry is
     * made, one of the following messages will be displayed:
     * <pre>
     * Error: Invalid response.
     * Try again. (You have 2 tries left.)
     * Press Enter to continue ...
     * </pre>
     * <pre>
     * Error: Invalid response.
     * Try again. (You have 1 try left.)
     * Press Enter to continue ...
     * </pre>
     * <pre>
     * Sorry, but you are out of tries.
     * The quit option will now be supplied.
     * Press Enter to continue ...
     * </pre>
     */


    char getRequest();
    /**<
     * Returns the request for action. This may be the request actually
     * entered by the user, or a program-supplied value of 'q' if the
     * user has been unable to make a valid choice in three attempts.
     */

private:
    char userRequest;

};


I've searched with trouble finding anything to resolve my problem. I'm unable to call the readRequest and getRequest functions (simply because I don't know how.) I've tried a few different ways of doing it, similar to those used in Java programming, but none worked.
Zhuge (4664)
You need to create an instance of the ActionRequest to call the method.

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ActionRequest x;
x.readRequest();
Last edited on
josephawad (5)
Thank you, this worked perfectly.
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