S
srini4vasan
Can we delete 'this' pointer in C++.
If so how can we delete this pointer?
If not why?
If so how can we delete this pointer?
If not why?
I
Ian Collins
Why would you want to?
G
Gianni Mariani
Yes, you can delete the this pointer.
After calling "delete", you must not reference any non static member
variables or non static functions. Anything that causes you to
dereference the "this" pointer is bad news.
N
Neelesh Bodas
I
Ian Collins
Please ignore the above, I misread the question....Ian said:
S
Stuart Redmann
Of course you can delete the this pointer inside the method of a class (as
delete operator/operator delete (please don't flame me for not knowing which of
the terms is the correct one, I always forget which one means which)) does not
try to set the passed pointer to Null, you can pass any const pointer into
delete. Note that this is a technique that is used by the MS MFC library,
although calling "delete this" is frown upon by some programmers:
Excerpt from MFC implementation, I hope not to violate against some copyright
clauses:
// self destruction
void CView:
ostNcDestroy(){
// default for views is to allocate them on the heap
// the default post-cleanup is to 'delete this'.
// never explicitly call 'delete' on a view
delete this;
}
This is quite handy for fire-and-forget implementation of Views (special windows
from the Document/view framework).
Regards,
Stuart