yes.. it should... make sure your virtual function is either public or
protected but not private.
and if it doesn't can u tell me the error?
--------------------------------------------------
Rohit Saraf
Second Year Undergraduate,
Dept. of Computer Science and Engineering
IIT Bombay
http://www.cse.iitb.ac.in/~rohitfeb14
On Sun, Jun 13, 2010 at 12:47 PM, akshay khatri
<akshaykhatri...@gmail.com>wrote:
> I meant this:
> let me explain it like this.
> I have *virtual int speed()* in class A.(in file A.h)
> I inherited class in class B(in file B.h) as class B:public A
> class B have a private member m_speed.
> Now I have to return m_speed from speed() from class B as I would
> instantiate an object of class B to use it.
> So if write my prgram like this:
>
> class B:public A
> {
> private:
> int m_speed();
> }
>
> int B::speed()
> {
> return m_speed;
> }
>
> would it work ?
>
>
>
> On 13 June 2010 12:37, Rohit Saraf <rohit.kumar.sa...@gmail.com> wrote:
>
>> Make those functions public
>> And even if M_speed is public of another class, it is still it another
>> class, you cannot just address it like m_speed in other classes.
>> Does it help?
>>
>> --------------------------------------------------
>> Rohit Saraf
>> Second Year Undergraduate,
>> Dept. of Computer Science and Engineering
>> IIT Bombay
>> http://www.cse.iitb.ac.in/~rohitfeb14
>>
>>
>> On Sun, Jun 13, 2010 at 12:31 PM, akshay khatri <
>> akshaykhatri...@gmail.com> wrote:
>>
>>> Hi
>>>
>>> On 13 June 2010 12:26, Rohit Saraf <rohit.kumar.sa...@gmail.com> wrote:
>>>
>>>> M-speed is private and you cannot call it from outside myPlugin. (though
>>>> i did not understand what u wanted to say)
>>>> Can you write ur prob explicitly?
>>>>
>>>
>>> I want to use speed() and direction() defined in myPlugin.h in
>>> otherPlugin.cpp. How can I use it(syntax) ? If I try to return a variable
>>> such as m_speed(even if defined in public part of class otherPlugin) , it
>>> gives an error.
>>>
>>>
>>>
>>>> --------------------------------------------------
>>>> Rohit Saraf
>>>> Second Year Undergraduate,
>>>> Dept. of Computer Science and Engineering
>>>> IIT Bombay
>>>> http://www.cse.iitb.ac.in/~rohitfeb14
>>>>
>>>>
>>>>
>>>> On Sun, Jun 13, 2010 at 12:20 PM, akshay khatri <
>>>> akshaykhatri...@gmail.com> wrote:
>>>>
>>>>> I have the following code structure
>>>>> in my file myPlugin.h , i have defined this
>>>>>
>>>>> virtual int speed();
>>>>>
>>>>> and gave a dummy implementation in myPlugin.cpp
>>>>>
>>>>> In another file otherPlugin.h I have included this line:
>>>>>
>>>>> #include <myPlugin.h>
>>>>> private:
>>>>> int m_speed;
>>>>>
>>>>> also class otherPlugin inherits myPlugin (public scope)
>>>>> I want to redefine speed in otherPlugin.cpp
>>>>> How should I return a value fromspeed() in it ?
>>>>>
>>>>> int myPlugin::speed()
>>>>> {
>>>>> return m_speed;
>>>>> }
>>>>> or
>>>>> int otherPlugin::speed()
>>>>> {
>>>>> return m_speed;
>>>>> }
>>>>>
>>>>> or anything else ?
>>>>>
>>>>> The error I get is that: m_speed was not declared in this scope.
>>>>>
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