@ Ankit: Wat is overriding actually thn?
On Sun, Jul 31, 2011 at 9:58 PM, Anika Jain <anika.jai...@gmail.com> wrote:
> ohkk.. m so sorry
>
>
> On Sun, Jul 31, 2011 at 9:41 PM, Ankit Minglani
> <ankit.mingl...@gmail.com>wrote:
>
>> @anika: This is not function overriding i think .. you cannot call the f()
>> function of the base class from the derived class object .. what you are
>> doing is creating a object of the derived class and calling the version of
>> f() that belong to derived class B .. ie is the same class object is calling
>> the same class function .
>>
>> correct me if i m wrong .
>>
>>
>> On Sun, Jul 31, 2011 at 8:42 AM, Anika Jain <anika.jai...@gmail.com>wrote:
>>
>>> @ muthu : not declaring tht function as virtual wont save overriding
>>>
>>> class A
>>> {
>>> int a;
>>>
>>> public:
>>> void f()
>>> {}
>>> int f2(){}
>>> };
>>>
>>> class B:public A
>>> {
>>> public:
>>> void f()
>>> {
>>> cout<<"abc\n";
>>> }
>>> };
>>>
>>> int main()
>>> {
>>> B ob;
>>> ob.f();
>>> return 0;
>>> }
>>>
>>> in this output is abc..
>>> so overriding occured
>>>
>>>
>>> On Sun, Jul 31, 2011 at 8:41 PM, muthu raj <muthura...@gmail.com> wrote:
>>>
>>>> Using friend functions we can only invoke already defined private
>>>> functions. We cannot override or prevent overriding using friend functions.
>>>> The problem here is how to prevent base class function from being
>>>> overridden
>>>> in derived class.
>>>>
>>>> *Muthuraj R
>>>> IV th Year , ISE
>>>> PESIT , Bangalore*
>>>>
>>>>
>>>>
>>>> On Sun, Jul 31, 2011 at 8:04 AM, Anika Jain <anika.jai...@gmail.com>wrote:
>>>>
>>>>> what if we write that function as private of base class.. and make a
>>>>> function in derived class that is friend function of the base class do
>>>>> that
>>>>> it can call tht private function of base.??
>>>>>
>>>>>
>>>>> On Sun, Jul 31, 2011 at 8:25 PM, muthu raj <muthura...@gmail.com>wrote:
>>>>>
>>>>>> Yeah but there is no equivalent of final keyword in c++.....So to
>>>>>> prevent member function from overriding in derived class in c++ dont
>>>>>> declare
>>>>>> the member function as virtual. Then it cannot be overridden in derived
>>>>>> class. There is no other way of preventing a member function of base
>>>>>> class
>>>>>> from being overridden.
>>>>>>
>>>>>> *Muthuraj R
>>>>>> IV th Year , ISE
>>>>>> PESIT , Bangalore*
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sun, Jul 31, 2011 at 7:38 AM, himanshu kansal <
>>>>>> himanshukansal...@gmail.com> wrote:
>>>>>>
>>>>>>> i think there is no keyword known as final in c++.....maybe u are
>>>>>>> talking with respect to java....
>>>>>>>
>>>>>>>
>>>>>>> On Sun, Jul 31, 2011 at 8:03 PM, muthu raj <muthura...@gmail.com>wrote:
>>>>>>>
>>>>>>>> By declaring the function a static final f().....
>>>>>>>> *Muthuraj R
>>>>>>>> IV th Year , ISE
>>>>>>>> PESIT , Bangalore*
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sun, Jul 31, 2011 at 7:28 AM, himanshu kansal <
>>>>>>>> himanshukansal...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> sry i think....i misspelled d ques....
>>>>>>>>> d ques was....
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> how will you protect a derived class to override base class's
>>>>>>>>> member function in c++....
>>>>>>>>>
>>>>>>>>> say if there is a function f() in base class then derived should
>>>>>>>>> not be able to
>>>>>>>>> override f() to provide its own definition.....
>>>>>>>>> but The function must be accessible in derived class.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> PS:dont try to make the function private in base class( it will be
>>>>>>>>> become inaccessible in derived class).
>>>>>>>>>
>>>>>>>>> On Sun, Jul 31, 2011 at 7:49 PM, himanshu kansal <
>>>>>>>>> himanshukansal...@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> how will you protect a base class to override its member function
>>>>>>>>>> in
>>>>>>>>>> derived class....
>>>>>>>>>>
>>>>>>>>>> say if there is a function f() in base class then derived cannot
>>>>>>>>>> override f() to provide its own definition.....
>>>>>>>>>> The function must be accessible in derived class.
>>>>>>>>>>
>>>>>>>>>> PS:dont try to make the function private in base class( it will be
>>>>>>>>>> become inaccessible in derived class).
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> Regards
>>>>>>>>> Himanshu Kansal
>>>>>>>>> Msc Comp. sc.
>>>>>>>>> (University of Delhi)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> Regards
>>>>>>> Himanshu Kansal
>>>>>>> Msc Comp. sc.
>>>>>>> (University of Delhi)
>>>>>>>
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>>>
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>>
>>
>>
>> --
>> The more you sweat in the field, the less you bleed in war."
>>
>> Ankit Minglani
>> NITK Surathkal
>>
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>
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--
Aditi Garg
Undergraduate Student
Electronics & Communication Divison
NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
Sector 3, Dwarka
New Delhi
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