Re: Method overloading with abstract base arguments
On Fri, 31 Jul 2009 12:55:36 CST, ses
<shawn.eion.smith@googlemail.com> wrote:
I've been away from c++ for a few years and seem to have forgotten
some things that used to be second nature, so please be kind.
Given:
class Base
{
virtual ~Base() {}
};
class Derived1 : public Base
{};
class Derived2 : public Base
{};
void handle(const Derived1& d1)
{}
void handle(const Derived2& d2)
{}
std::vector<Base *> bases;
bases.push_back(new Derived1);
bases.push_back(new Derived2);
std::vector<Base *>::iterator iter = bases.begin();
std::vector<Base *>::end = bases.end();
while (iter != end)
handle(*iter);
The compiler reports that the calls to handle are ambiguous.
Essentially I'm just trying to get the right method called based on
the true type of the base pointer. Can someone please tell me what
I'm missing here.
That the proper overload to use is selected at compile time using the
static types of the arguments.
You need to make handle() a virtual function of Base and override it
in each of the derived classes.
George
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