method inheritance with default parameter

[Á¤Á¤±Õ]

hi, all

I have question in method inheritance.

in my opinion, first method call in main function report ambiguity. but
resolves dervied class's method.

thanks in advance.

#include <iostream>

using namespace std;

class Base
{
public:
int f(int b, int c=0)
{
cout<<"Base::f"<<endl;
}
};

class Derivedublic Base
{
public:
int f(int a=0)
{
cout<<"Derived::f"<<endl;
}

};

int main()
{
Derived a;
a.f(0);
a.f(0,1); // c++ reports an error.
}

 

[Victor Bazarov]

hi, all

I have question in method inheritance.

in my opinion, first method call in main function report ambiguity.
but resolves dervied class's method.

thanks in advance.

#include <iostream>

using namespace std;

class Base
{
public:
int f(int b, int c=0)
{
cout<<"Base::f"<<endl;
}
};

class Derivedublic Base
{
public:
int f(int a=0)
{
cout<<"Derived::f"<<endl;
}

};

int main()
{
Derived a;
a.f(0);
a.f(0,1); // c++ reports an error.
}

Read the FAQ about "name hiding".

V