Open Source Your Knowledge, Become a Contributor
Technology knowledge has to be shared and made accessible for free. Join the movement.
description:
deleting NULL pointers have no effect. deleting a pointer to a base class which points to a derived object is legal assuming the base destructor is virtual. deleting an array of objects using a base class pointer is undefined.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
struct Foo
{
   virtual ~Foo() {}
   };
struct Bar : public Foo
  {
  };
 int main(int argc, char** argv)
 {
   Foo* f = new Bar;
   delete f;
   f = 0;
   delete f;
   Foo* fa = new Bar[10];
   delete [] fa;
   fa = 0;
   delete fa;
   return 0;
}
Press desired key combination and then press ENTER.
 Open Source Your Knowledge: become a Contributor and help others learn. Create New Content