DaniWeb IT Discussion Community - vc++ mfc-i can't make getline work with a string for file input

Quote:

Originally Posted by Dogtree

>> ccin.open(data.dat);
I think you mean

ccin.open("data.dat");

Yea i did mean to include the quotes i was tired when i wrote that but i don't think i could make a short version of the program because it is a dialog based program so thers like 7 or 8 different files with all the classes and such and i don't get the error if it is just a normal console program. if you want to look at it i'll post the whole source in a zip file. here is the file where the problem is :
(cust.cpp)

// Cust.cpp : Defines the class behaviors for the application.

//



#include "stdafx.h"

#include "Cust.h"//this is App's main class declaration file

#include "CustDlg.h"//this is the app's main dialog



#include <fstream.h>

#include <string>

#include <cstring>



using std::string;i need this or else string is undeclared identifier

using std::endl;

using std::getline;// i need this or else getline is an undeclared identifier









#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif



/////////////////////////////////////////////////////////////////////////////

        

// CCustApp



BEGIN_MESSAGE_MAP(CCustApp, CWinApp)

        //{{AFX_MSG_MAP(CCustApp)

                // NOTE - the ClassWizard will add and remove mapping macros here.

                //    DO NOT EDIT what you see in these blocks of generated code!

        //}}AFX_MSG

        ON_COMMAND(ID_HELP, CWinApp::OnHelp)

END_MESSAGE_MAP()



/////////////////////////////////////////////////////////////////////////////





// CCustApp construction

// 

//

// ********THIS IS WHERE I'm TRYING TO DO THE FILE INPUT********

//////////////////////////////////////////////////////////////////////////////

CCustApp::CCustApp()

{

        ifstream ccin;

        for (int a=0;a<10;a++) //set default valuse for all custs struct variables (all are CStrings)

        {

                custs[a].pname="emt";

                custs[a].pname="emt";

                custs[a].padd="emt";

                custs[a].padd2="emt";

                custs[a].pcity="emt";

                custs[a].pstate="emt";

                custs[a].pzip="emt";

                custs[a].pcountry="emt";

                custs[a].pphone="emt";

                custs[a].pemail="emt";

                custs[a].bname="emt";

                custs[a].badd="emt";

                custs[a].badd2="emt";

                custs[a].bcity="emt";

                custs[a].bstate="emt";

                custs[a].bzip="emt";

                custs[a].bcountry="emt";

                custs[a].bphone="emt";

                custs[a].bemail="emt";

                custs[a].sname="emt";

                custs[a].sadd="emt";

                custs[a].sadd2="emt";

                custs[a].scity="emt";

                custs[a].sstate="emt";

                custs[a].szip="emt";

                custs[a].scountry="emt";

                custs[a].sphone="emt";        

        }



        ccin.open("data.dat");



// THIS IS WHERE I'VE BEEN TRYING A MILLION DIFFERENT THINGS FOR INPUT



        string pname; //std::string



        getline(ccin,pname);

        

        ccin.close();

        

}



CCustApp::~CCustApp()

{

        WFile();

}

/////////////////////////////////////////////////////////////////////////////

// The one and only CCustApp object





/////////////////////////////////////////////////////////////////////////////

// CCustApp initialization



BOOL CCustApp::InitInstance()

{

        AfxEnableControlContainer();



        // Standard initialization

        // If you are not using these features and wish to reduce the size

        //  of your final executable, you should remove from the following

        //  the specific initialization routines you do not need.



#ifdef _AFXDLL

        Enable3dControls();                        // Call this when using MFC in a shared DLL

#else

        Enable3dControlsStatic();        // Call this when linking to MFC statically

#endif



        CCustDlg dlg;

        m_pMainWnd = &dlg;

        int nResponse = dlg.DoModal();

        if (nResponse == IDOK)

        {

                // TODO: Place code here to handle when the dialog is

                //  dismissed with OK

        }

        else if (nResponse == IDCANCEL)

        {

                // TODO: Place code here to handle when the dialog is

                //  dismissed with Cancel

        }



        // Since the dialog has been closed, return FALSE so that we exit the

        //  application, rather than start the application's message pump.

        return FALSE;

}

void CCustApp::WFile()

{

       ofstream ccout;



//        this part is jsut a big for loop with a bunch of ccouts (not important)

}

THESE are the errors i get with the above code:

C:\Documents and Settings\Dave\Desktop\Cust\Cust.cpp(91) : error C2784: 'class std::basic_istream<_E,_Tr> &__cdecl std::getline(class std::basic_istream<_E,_Tr> &,class std::basic_string<_E,_Tr,_A> &)' : could not deduce template argument for 'class
std::basic_istream<_E,_Tr> &' from 'class ifstream'

C:\Documents and Settings\Dave\Desktop\Cust\Cust.cpp(91) : error C2780: 'class std::basic_istream<_E,_Tr> &__cdecl std::getline(class std::basic_istream<_E,_Tr> &,class std::basic_string<_E,_Tr,_A> &,const _E)' : expects 3 arguments - 2 provided

c:\program files\microsoft visual studio\vc98\include\string(149) : see declaration of 'getline'
Error executing cl.exe.

I tried adding "30" as a third argument, but i just get the same errors only it says expected 2 arguments - 3 provided

NOTE: SORRY I COULDN'T UPLOAD THE FILE IT WAS A LITTLE TOO LARGE SO I'LL JUST MAKE A NEW PROGRAM AND REALLY QUICK AAND POST IT WHEN ITS DONE

the compiler i'm using is whatever one comes with ms visual c++ 6.0

thanks in advance