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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>>>
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>
>
>
> --
>
> Regards
> Himanshu Kansal
> Msc Comp. sc.
> (University of Delhi)
>
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