inherit2.h

C++的一个好库。。。现在很流行

/* Copyright Bruno da Silva de Oliveira 2003. Use, modification and 
 distribution is subject to the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at 
 http:#www.boost.org/LICENSE_1_0.txt) 
 */
namespace inherit2 {

struct A
{
    int x;
    int getx() { return x; }
    int foo() { return 0; }
    int foo(int x) { return x; }
};

struct B : A
{
    int y;
    int gety() { return y; }
    int foo() { return 1; }
};

struct C : B
{
    int z;
    int getz() { return z; }
};

struct D : C
{
    int w;
    int getw() { return w; }
};

}