thanku sir...sir 1 more thng....cn u gv a link or some pdf for studying
virtual inheritance elaborating the vptr mechanism more clearly...
On Sun, Jul 10, 2011 at 11:56 PM, Sandeep Jain <sandeep6...@gmail.com>wrote:
> The reason is... that when u write
> a obj1=14;
> it is same as writing a obj1 = a(14);
> So first a temporary object is created using the constructor
> a(int i)
> And this temporary object is passed in the copy constructor. BUT since it
> is temp object it must be referred by a const alias.
>
>
> Regards,
> Sandeep Jain
>
>
>
> On Sun, Jul 10, 2011 at 11:52 PM, himanshu kansal <
> himanshukansal...@gmail.com> wrote:
>
>> a obj3(obj1); but this statement works fine.....so it means it is
>> calling copy constt. perfectly...
>>
>>
>> On Sun, Jul 10, 2011 at 11:49 PM, rahul <rahulr...@gmail.com> wrote:
>>
>>> my bad....add const in copy construcor....i think...that compiler
>>> expect...
>>>
>>>
>>> On Sun, Jul 10, 2011 at 11:48 PM, rahul <rahulr...@gmail.com> wrote:
>>>
>>>> use a(int arg)
>>>> {
>>>> x = arg;
>>>> }
>>>>
>>>>
>>>> ur call will work...:)
>>>>
>>>>
>>>> On Sun, Jul 10, 2011 at 11:46 PM, himanshu kansal <
>>>> himanshukansal...@gmail.com> wrote:
>>>>
>>>>> class a
>>>>> {
>>>>> int x;
>>>>> public:
>>>>> a()
>>>>> {
>>>>> }
>>>>> a(int i){x=i;cout<<"in a "<<x<<endl;}
>>>>> a(a &obj){cout<<"in copy cons of a"<<endl;}
>>>>>
>>>>> };
>>>>>
>>>>> a obj1=14; //error no matching call to a::a(a)
>>>>>
>>>>>
>>>>> why.....
>>>>> and just adding a const in the constructor saves me from error...but
>>>>> how....
>>>>>
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>>
>>
>>
>> --
>>
>> Regards
>> Himanshu Kansal
>> Msc Comp. sc.
>> (University of Delhi)
>>
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>
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Regards
Himanshu Kansal
Msc Comp. sc.
(University of Delhi)
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