more than one function variable?

Dear,
It is possible to add more than one function variable in a class(not main class).
Sorry, i may not make the question clearly.
Thank you

Code:

---

class Foo
{
public:
    void bar() {}
    void bar2() {}
};

---

gg

Thank you.

Code:

---

private:
        Cshunt shunt;
        Ctcircuit tcircuit;

---

if i delete one function variable, then problem runs properly.

lwong, you might have to elaborate a little.

e.g. give a bit more relevant code, state compile log, explain how it is not working as expected etc.

Sorry
lcircuit2.h

Code:

---

#if !defined(AFX_LCIRCUIT2_H__8CC450C8_55E8_42D6_BD59_33E28683A1A8__INCLUDED_)
#define AFX_LCIRCUIT2_H__8CC450C8_55E8_42D6_BD59_33E28683A1A8__INCLUDED_

#include "shunt.h"
#include "tcircuit.h"        // Added by ClassView
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// lcircuit2.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// Clcircuit2 dialog

class Clcircuit2 : public CDialog
{
// Construction
public:
        Clcircuit2(CWnd* pParent = NULL);  // standard constructor
       
// Dialog Data
        //{{AFX_DATA(Clcircuit2)
        enum { IDD = IDD_lcircuit2 };
        double        m_rvalue;
        double        m_rnewvalue;
        double        m_frequency;
        //}}AFX_DATA


// Overrides
        // ClassWizard generated virtual function overrides
        //{{AFX_VIRTUAL(Clcircuit2)
        protected:
        virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
        //}}AFX_VIRTUAL

// Implementation
protected:

        // Generated message map functions
        //{{AFX_MSG(Clcircuit2)
        virtual void OnOK();
        //}}AFX_MSG
        DECLARE_MESSAGE_MAP();
private:
        Cshunt shunt;
        Ctcircuit tcircuit;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_LCIRCUIT2_H__8CC450C8_55E8_42D6_BD59_33E28683A1A8__INCLUDED_)

---

lcircuit2.cpp

Code:

---

// lcircuit2.cpp : implementation file
//

#include "stdafx.h"
#include "test.h"
#include "lcircuit2.h"
#include "shunt.h"
#include "tcircuit.h"
#include "math.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Clcircuit2 dialog


Clcircuit2::Clcircuit2(CWnd* pParent /*=NULL*/)
        : CDialog(Clcircuit2::IDD, pParent)
{
        //{{AFX_DATA_INIT(Clcircuit2)
        m_rvalue = 0.0;
        m_rnewvalue = 0.0;
        m_frequency = 0.0;
        //}}AFX_DATA_INIT
}


void Clcircuit2::DoDataExchange(CDataExchange* pDX)
{
        CDialog::DoDataExchange(pDX);
        //{{AFX_DATA_MAP(Clcircuit2)
        DDX_Text(pDX, IDC_EDIT1, m_rvalue);
        DDX_Text(pDX, IDC_EDIT2, m_rnewvalue);
        DDX_Text(pDX, IDC_EDIT3, m_frequency);
        //}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Clcircuit2, CDialog)
        //{{AFX_MSG_MAP(Clcircuit2)
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Clcircuit2 message handlers


void Clcircuit2::OnOK()
{
        // TODO: Add extra validation here
        double R=0;
        double newR=0;
        double frequency=0;
        double q=0;
        double pi=3.142857143;
        double L=0;
        double C=0;
        double w=0;
        UpdateData(1);
        R=m_rvalue;
        newR=m_rnewvalue;
        frequency=m_frequency * 1000000;
        w=2 * pi * frequency;
        if (newR>=R)
        {
                q=sqrt(newR/R-1);
                L=q*R/w;
//                C=L/(power(R,2)+power((w*L),2));
                tcircuit.m_lvalue=L;
                tcircuit.m_qvalue=q;
                tcircuit.DoModal();

        //        tcircuit.m_cvalue=C;
        }
        else
       
        {
                q=sqrt(R/newR-1);
                  shunt.m_value=q;
                shunt.DoModal();
       
        }
UpdateData(0);
CDialog::OnOK();
}

---

shunt.h

Code:

---

#if !defined(AFX_SHUNT_H__35B5A7B5_EFB0_4B30_80F5_225057AB7B12__INCLUDED_)
#define AFX_SHUNT_H__35B5A7B5_EFB0_4B30_80F5_225057AB7B12__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// shunt.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// Cshunt dialog

class Cshunt : public CDialog
{
// Construction
public:
        Cshunt(CWnd* pParent = NULL);  // standard constructor

// Dialog Data
        //{{AFX_DATA(Cshunt)
        enum { IDD = IDD_DIALOG3 };
        double        m_value;
        //}}AFX_DATA


// Overrides
        // ClassWizard generated virtual function overrides
        //{{AFX_VIRTUAL(Cshunt)
        protected:
        virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
        //}}AFX_VIRTUAL

// Implementation
protected:

        // Generated message map functions
        //{{AFX_MSG(Cshunt)
                // NOTE: the ClassWizard will add member functions here
        //}}AFX_MSG
        DECLARE_MESSAGE_MAP()
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SHUNT_H__35B5A7B5_EFB0_4B30_80F5_225057AB7B12__INCLUDED_)

---

shunt.cpp

Code:

---

// shunt.cpp : implementation file
//

#include "stdafx.h"
#include "test.h"
#include "shunt.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Cshunt dialog


Cshunt::Cshunt(CWnd* pParent /*=NULL*/)
        : CDialog(Cshunt::IDD, pParent)
{
        //{{AFX_DATA_INIT(Cshunt)
        m_value = 0.0;
        //}}AFX_DATA_INIT
}


void Cshunt::DoDataExchange(CDataExchange* pDX)
{
        CDialog::DoDataExchange(pDX);
        //{{AFX_DATA_MAP(Cshunt)
        DDX_Text(pDX, IDC_EDIT1, m_value);
        //}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Cshunt, CDialog)
        //{{AFX_MSG_MAP(Cshunt)
                // NOTE: the ClassWizard will add message map macros here
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Cshunt message handlers

---

Thank you, i don't know whether these codes can help.

What is your error?

My code is no any error, but cannot run.
the problem is caused by

Code:

---

private:
        Cshunt shunt;
        Ctcircuit tcircuit;

---

in the header file "lcircuit1.h"

if i delete one of function variable, the program can run properly.
will there be an error if i declare two variable in one class(not main class)?I can declare two variables in main class but i cannot declare more than two. why?
Thank you.

does your code work if u delete Cshunt shunt ....

anyway u should move object (Cshunt shunt and Ctcircuit tcircuit) declaration into main(), as i see it you are defining 2 "objects" NOT variables in private of class Ctcircuit ....

Exactly what error are you getting from the complier?

Undeclared identifier when using the object?
syntax error: missing ; before shunt (or tcircuit)


>>private:
Cshunt shunt;
Ctcircuit tcircuit;
<<

this is can be done.







Try this;

lcircuit2.cpp : implementation file

#include "stdafx.h"
#include "test.h"
#include "lcircuit2.h"
#include "shunt.h"
#include "tcircuit.h"

the order may be wrong

lcircuit2.cpp : implementation file
#include "stdafx.h"
#include "test.h"

//ensure all other headers required by shunt and tcircuit have been included (ie math.h)

//now include all these objects header as they will be required for the class header
#include "shunt.h"
#include "tcircuit.h"

//last include the class header
#include "lcircuit2.h"



or are you including shunt or lcircuit2 in tcircuit? (which you can't do)


>>anyway u should move object (Cshunt shunt and Ctcircuit tcircuit) declaration into main()

This is MFC so there is not a main() function.............
These look like dialogs and so need global scope unless run as modal ( DoModal() ).........
ect.

Thank you all,
i have solved the problem,the code is no problem, after i click rebuild all in build, it can run