C++ header file

// Copyright 2004-2006 Roman Yakovenko.
// Distributed under 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)

#ifndef __hello_world_hpp__
#define __hello_world_hpp__

#include <string>

//I want to rename color to Color
enum color{ red, green, blue };

struct genealogical_tree{/*...*/};

struct animal{

    explicit animal( const std::string& name="" )
    : m_name( name )
    {}

    //I need to set call policies to the function
    genealogical_tree& genealogical_tree_ref()
    { return m_genealogical_tree; }

    std::string name() const
    { return m_name; }

private:
    std::string m_name;
    genealogical_tree m_genealogical_tree;
};

//I want to exclude next declarations:
struct impl1{};
struct impl2{};

inline int* get_int_ptr(){ return 0;}
inline int* get_int_ptr(int){ return 0;}
inline int* get_int_ptr(double){ return 0;}

#endif//__hello_world_hpp__