c**********e
发帖数: 2007 | 1 Is there anything wrong with the following code?
class A {};
class B : public A {};
void main() {
A* a;
B* b=a;
} |
m********l
发帖数: 4394 | 2 what's not wrong about the code?
------------
actually, in c# it's definitely wrong.
How about C++?
does the RTTI check it?
【在 c**********e 的大作中提到】
: Is there anything wrong with the following code?
: class A {};
: class B : public A {};
: void main() {
: A* a;
: B* b=a;
: }
|
l*****a
发帖数: 14598 | 3 obviously, base class pointer is not a derive class pointer
here u need type conversion
B* b=dynamic_casta;
【在 c**********e 的大作中提到】
: Is there anything wrong with the following code?
: class A {};
: class B : public A {};
: void main() {
: A* a;
: B* b=a;
: }
|
