Re: Checking whether a pointer has been deleted
Edson Manoel wrote:
It depends. You can have invalid references too, e.g:
Not really.
MyClass* p = new myClass();
delete p;
CallByRef(*p);
You invoke undefined behaviour the moment you dereference the pointer,
before the reference is created.
//...
void CallByRef(MyClass &p) {
p->something; // invalid access
}
This should not compile (unless MyClass defines operator->). Assuming
that you meant to write
p.something;
you cannot rely on even getting that far because your troubles start
before the function is called.
--
Gerhard Menzl
#dogma int main ()
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