Re: implementations of new
On Apr 4, 11:50 am, "Lance Diduck" <lancedid...@nyc.rr.com> wrote:
On Apr 4, 5:58 am, "Ivan Novick" <ivan.d.nov...@gmail.com> wrote:> Hi,
Since there is a thread running concurrently about the implications of
virtual destructors, I thought I would point out that the code below
requires that the destructor of the base object be virtual. If the
destructor is not virtual, there will be a run-time error when delete
expression is invoked against at pointer whose static type is the base
type but dynamic type is the derived type.
template<class T>
void ::pseudo_delete(T*_p){
MostDerivedType * mdt=mostderived_cast<MostDerivedType>(_p);
mdt->~MostDerivedType();
if(overloaded_delete_operator<MostDerivedType>::value)
overloaded_delete_operator<MostDerivedType>::Scope::delete(_p);
else
// mdt is "leftmost" pointer
::operator delete(mdt);
}
-Le Chaud Lapin-
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