fork download

copy

#include <iostream>
using namespace std;
 
struct Base {
  void foo(int);
};
 
struct Derived : Base { 
  using Base::foo;
  void foo() { cout << "Derived::foo()\n"; }
};
 
void Derived::foo(int) {
  cout << "Derived::foo(int)\n";	
}
 
int main() {
  Base b;
  b.foo(2);
  Derived d;
  d.foo(2);
  d.foo();
  return 0;
}
 

prog.cpp:13:6: error: prototype for ‘void Derived::foo(int)’ does not match any in class ‘Derived’
 void Derived::foo(int) {
      ^
prog.cpp:5:8: error: candidates are: void Base::foo(int)
   void foo(int);
        ^
prog.cpp:10:8: error:                 void Derived::foo()
   void foo() { cout << "Derived::foo()\n"; }
        ^

Standard output is empty