Copy constructor should have been called two times!!!!!!1
On Sun, Aug 21, 2011 at 1:38 PM, Abhishek Yadav
<algowithabhis...@gmail.com>wrote:
> what are you trying to say?...can you please explain?h
>
>
> On Sun, Aug 21, 2011 at 1:35 PM, JAIDEV YADAV <jaid...@gmail.com> wrote:
>
>> try to use X b = a ; b.fun() ;
>>
>> On Sun, Aug 21, 2011 at 1:33 PM, Abhishek Yadav <
>> algowithabhis...@gmail.com> wrote:
>>
>>> ok...may be i forgot , can you please tell me correct code for the copy
>>> constructor..?
>>>
>>>
>>> On Sun, Aug 21, 2011 at 1:31 PM, JAIDEV YADAV <jaid...@gmail.com> wrote:
>>>
>>>> dude u haven't used copy constructor properly .. check it out again ...
>>>> you are not copying actually ... thats it ...
>>>>
>>>> On Sun, Aug 21, 2011 at 12:53 PM, Abhishek Yadav <
>>>> algowithabhis...@gmail.com> wrote:
>>>>
>>>>> Check this code: the thing i couldn't understand is when the object is
>>>>> being returned neither the copy constructor is being called nor the
>>>>> assignment operator overload is called....then how the object is being
>>>>> copied into b. i don't think default copy constructor should be called if
>>>>> i
>>>>> have made our own copy constructor....???
>>>>> #include<iostream>
>>>>> using namespace std;
>>>>> #include<conio.h>
>>>>>
>>>>> class X
>>>>> {
>>>>> public:
>>>>> int num;
>>>>> X(int a)
>>>>> {
>>>>> num=a;
>>>>> cout<<"\n constructor";
>>>>> }
>>>>>
>>>>> X(const X& t)
>>>>> {
>>>>> this->num=t.num;
>>>>> cout<<"\nCopy ";
>>>>> }
>>>>>
>>>>> X operator=(const X& t)
>>>>> {
>>>>> this->num =t.num;
>>>>> cout<<"\n Assigment ";
>>>>> return t;
>>>>> }
>>>>>
>>>>> X fun()
>>>>> {
>>>>> cout<<"\nin fun";
>>>>> return X(7);
>>>>> }
>>>>>
>>>>> ~X()
>>>>> {
>>>>> cout<<"\ndestruct ";
>>>>> }
>>>>>
>>>>> };
>>>>>
>>>>> int main()
>>>>> {
>>>>> {
>>>>> X a(1);
>>>>> X b=a.fun();
>>>>> cout<<"\n\n"<<b.num;
>>>>> }
>>>>> getch();
>>>>> }
>>>>>
>>>>>
>>>>> On Sun, Aug 21, 2011 at 12:33 PM, Abhishek Yadav <
>>>>> algowithabhis...@gmail.com> wrote:
>>>>>
>>>>>> The code is correct..return X will make a temporary object and for
>>>>>> that a constructor and corresponding destructor will be called and that
>>>>>> object is returned.
>>>>>>
>>>>>> On Sun, Aug 21, 2011 at 12:24 PM, Puneet Chawla <
>>>>>> puneetchawla...@gmail.com> wrote:
>>>>>>
>>>>>>> It will show error
>>>>>>>
>>>>>>> On Sun, Aug 21, 2011 at 12:21 PM, Sanjay Rajpal <srn...@gmail.com>wrote:
>>>>>>>
>>>>>>>> I think it will not be an error.
>>>>>>>>
>>>>>>>> This is because X() will create a temporary object, and when the
>>>>>>>> object is returned in the function calling it, then default copy
>>>>>>>> constructor will do bitwise copy of data members in the calling
>>>>>>>> function.
>>>>>>>>
>>>>>>>> Correct me if m wrong.
>>>>>>>>
>>>>>>>> On 8/20/11, sachin sabbarwal <algowithsac...@gmail.com> wrote:
>>>>>>>> > class X()
>>>>>>>> > {
>>>>>>>> >
>>>>>>>> > X()
>>>>>>>> > {
>>>>>>>> > }
>>>>>>>> >
>>>>>>>> >
>>>>>>>> >
>>>>>>>> > X fun()
>>>>>>>> > {
>>>>>>>> > return X(); //error or what?? because constructor never
>>>>>>>> returns
>>>>>>>> > anything so what this return statement will receive after
>>>>>>>> executing x() and
>>>>>>>> > what it will return??
>>>>>>>> > }
>>>>>>>> >
>>>>>>>> >
>>>>>>>> > };
>>>>>>>> >
>>>>>>>> > --
>>>>>>>> > You received this message because you are subscribed to the Google
>>>>>>>> Groups
>>>>>>>> > "Algorithm Geeks" group.
>>>>>>>> > To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>>> > To unsubscribe from this group, send email to
>>>>>>>> > algogeeks+unsubscr...@googlegroups.com.
>>>>>>>> > For more options, visit this group at
>>>>>>>> > http://groups.google.com/group/algogeeks?hl=en.
>>>>>>>> >
>>>>>>>> >
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Sanju
>>>>>>>> :)
>>>>>>>>
>>>>>>>> --
>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>> Groups "Algorithm Geeks" group.
>>>>>>>> To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>> algogeeks+unsubscr...@googlegroups.com.
>>>>>>>> For more options, visit this group at
>>>>>>>> http://groups.google.com/group/algogeeks?hl=en.
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> With regards
>>>>>>> ............
>>>>>>> Puneet Chawla
>>>>>>> Computer Engineering Student
>>>>>>> NIT Kurukshetra
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "Algorithm Geeks" group.
>>>>>>> To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>> To unsubscribe from this group, send email to
>>>>>>> algogeeks+unsubscr...@googlegroups.com.
>>>>>>> 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 algogeeks@googlegroups.com.
>>>>> To unsubscribe from this group, send email to
>>>>> algogeeks+unsubscr...@googlegroups.com.
>>>>> For more options, visit this group at
>>>>> http://groups.google.com/group/algogeeks?hl=en.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> JaiDev Yadav
>>>> (National Yoga Champion)
>>>> Computer Engg. Dept.
>>>> National Institute of Technology
>>>> Kurukshetra,Haryana
>>>>
>>>> --
>>>> You received this message because you are subscribed to the Google
>>>> Groups "Algorithm Geeks" group.
>>>> To post to this group, send email to algogeeks@googlegroups.com.
>>>> To unsubscribe from this group, send email to
>>>> algogeeks+unsubscr...@googlegroups.com.
>>>> 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 algogeeks@googlegroups.com.
>>> To unsubscribe from this group, send email to
>>> algogeeks+unsubscr...@googlegroups.com.
>>> For more options, visit this group at
>>> http://groups.google.com/group/algogeeks?hl=en.
>>>
>>
>>
>>
>> --
>> JaiDev Yadav
>> (National Yoga Champion)
>> Computer Engg. Dept.
>> National Institute of Technology
>> Kurukshetra,Haryana
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Algorithm Geeks" group.
>> To post to this group, send email to algogeeks@googlegroups.com.
>> To unsubscribe from this group, send email to
>> algogeeks+unsubscr...@googlegroups.com.
>> 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 algogeeks@googlegroups.com.
> To unsubscribe from this group, send email to
> algogeeks+unsubscr...@googlegroups.com.
> 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 algogeeks@googlegroups.com.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
