Re: compiler not enforcing const rules
"kwijibo28" <kwijibo28@hotmail.com> writes:
I've got this piece of code which compile fine on my compiler but
I'm sure it shouldn't.
It should.
As you can see in the main() function I'm calling the const member
function TestB. And this function call TestA. But TestA is NOT a const
member function so the compiler should return error?
class A
{
public:
virtual ~A();
virtual void TestA() = 0;
int m_a;
};
class ChildA : public A
{
public:
ChildA() {m_a = 0;}
void TestA() {m_a = 1;}
};
class B
{
public:
B() {a = new ChildA;}
~B() {delete a;}
void TestB() const {a->TestA();}
A * a;
};
int main()
{
B b;
b.TestB();
return 0;
}
The compiler is correct to accept this.
Inside TestB(), the this pointer points to a const instance of class
B. This means that the pointer a can't be modified; the object pointed
to by a can still be modified, though.
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