Its undefined behavior. In c++ once you delete the pointer(in you case
this) and trying to access it may lead to undefined behavior you may or
may not get correct value. Its not possible to come to conclusion as result
is not fixed. Delete of pointer will return memory to pool. if it is not
used for allocation the values will be same.
On Wed, Jun 5, 2013 at 9:35 PM, Nitish Raj <raj.n...@gmail.com> wrote:
> @saini oops... i answered very fast...Let me think...Destruction of this
> pointer. Delete operator works only for heap allocated data. If you object
> is created using new, then you can apply delete this, otherwise behavior is
> undefined
> delete this will not normally affect the this pointer itself, so it can
> still be used to call the function. This behaviour is undefined though - it
> might work, it might not. In general, delete this is a bad idea in C++.
> The only justification for using it is in some reference counted classes,
> and there are beter approaches to reference counting which do not require
> its use.
>
>
> On Wed, Jun 5, 2013 at 9:21 PM, Nitish Raj <raj.n...@gmail.com> wrote:
>
>> When destroy called it will print garbage then it will print desired one.
>> Coz this pointer is self link but with different address of this pointer.
>> So after deletion of pointer this ...
>> On 5 Jun 2013 14:37, "shubham saini" <shubhamsain...@gmail.com> wrote:
>>
>>> #include<iostream>
>>> using namespace std;
>>>
>>> class Test
>>> {
>>> private:
>>> int x;
>>> int y;
>>> public:
>>> Test(int x = 0, int y = 0) { this->x = x; this->y = y; }
>>> void setX(int a) { x = a; }
>>> void setY(int b) { y = b; }
>>> void destroy() { delete this;
>>> cout<<"x="<<this->x<<",y= "<<this->y;
>>> }
>>> void print() { cout << "x = " << x << " y = " << y << endl; }
>>> };
>>>
>>> int main()
>>> {
>>> Test *obj=new Test();
>>> (*obj).setX(10);
>>> (*obj).setY(20);
>>> (*obj).destroy();
>>> (*obj).print();
>>> return 0;
>>> }
>>>
>>> i created object dynamically yet how it is still able to print values of
>>> x & y even after deletion of object through 'this' .
>>>
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>>
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