@aditi : in C++ you define a function virtual to let the derived class give its own definition for the same. and in that case the functions are overridden. unlike in JAVA where no virtual keyword is needed .. so if you write the same code as above in java .. that may be referred to as Method overriding .. but not in cpp.
On Sun, Jul 31, 2011 at 9:34 AM, aditi garg <[email protected]>wrote: > @ Ankit: Wat is overriding actually thn? > > > On Sun, Jul 31, 2011 at 9:58 PM, Anika Jain <[email protected]>wrote: > >> ohkk.. m so sorry >> >> >> On Sun, Jul 31, 2011 at 9:41 PM, Ankit Minglani <[email protected] >> > 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 <[email protected]>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 <[email protected]>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 <[email protected]>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 <[email protected]>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 < >>>>>>> [email protected]> 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 <[email protected]>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 < >>>>>>>>> [email protected]> 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 < >>>>>>>>>> [email protected]> 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) >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>>> Groups "Algorithm Geeks" group. >>>>>>>>>> To post to this group, send email to [email protected]. >>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>> [email protected]. >>>>>>>>>> For more options, visit this group at >>>>>>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "Algorithm Geeks" group. >>>>>>>>> To post to this group, send email to [email protected]. >>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>> [email protected]. >>>>>>>>> For more options, visit this group at >>>>>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> >>>>>>>> Regards >>>>>>>> Himanshu Kansal >>>>>>>> Msc Comp. sc. >>>>>>>> (University of Delhi) >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "Algorithm Geeks" group. >>>>>>>> To post to this group, send email to [email protected]. >>>>>>>> To unsubscribe from this group, send email to >>>>>>>> [email protected]. >>>>>>>> For more options, visit this group at >>>>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Algorithm Geeks" group. >>>>>>> To post to this group, send email to [email protected]. >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected]. >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>>> >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Algorithm Geeks" group. >>>>>> To post to this group, send email to [email protected]. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Algorithm Geeks" group. >>>>> To post to this group, send email to [email protected]. >>>>> To unsubscribe from this group, send email to >>>>> [email protected]. >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/algogeeks?hl=en. >>>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Algorithm Geeks" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]. >>>> For more options, visit this group at >>>> http://groups.google.com/group/algogeeks?hl=en. >>>> >>> >>> >>> >>> -- >>> The more you sweat in the field, the less you bleed in war." >>> >>> Ankit Minglani >>> NITK Surathkal >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > Aditi Garg > Undergraduate Student > Electronics & Communication Divison > NETAJI SUBHAS INSTITUTE OF TECHNOLOGY > Sector 3, Dwarka > New Delhi > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- The more you sweat in the field, the less you bleed in war." Ankit Minglani NITK Surathkal -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
