/** @file list6605.cpp */
/** Listing 66-5. Fix the Overloading Errors */
#include <iostream>
#include <ostream>
#include <string>

void easy(long) {}
void easy(double) {}
void call_easy() {
   easy(42);
}

void pointer(double*) {}
void pointer(void*) {}
const int zero = 0;
void call_pointer() {
   pointer(&zero);
}

int add(int a) { return a; }
int add(int a, int b) { return a + b; }
int add(int a, int b, int c) { return a + b + c; }
int add(int a, int b, int c, int d) { return a + b + c + d; }
int add(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
void call_add() {
   add(1, 2, 3L, 4.0);
}

void ref(int const&) {}
void ref(int) {}
void call_ref() {
   int x;
   ref(x);
}

class base {};
class derived : public base {};
class sibling : public base {};
class most_derived : public derived {};

void tree(derived&, sibling&) {}
void tree(most_derived&, base&) {}
void call_tree() {
   sibling s;
   most_derived md;
   tree(md, s);
}