/usr/include/boost/serialization
Edit: /usr/include/boost/serialization/base_object.hpp (3008B)
#ifndef BOOST_SERIALIZATION_BASE_OBJECT_HPP
#define BOOST_SERIALIZATION_BASE_OBJECT_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// base_object.hpp:
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// 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)
// See http://www.boost.org for updates, documentation, and revision history.
// if no archive headers have been included this is a no op
// this is to permit BOOST_EXPORT etc to be included in a
// file declaration header
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost {
namespace serialization {
namespace detail
{
// get the base type for a given derived type
// preserving the const-ness
template
struct base_cast
{
typedef typename
mpl::if_<
is_const,
const B,
B
>::type type;
BOOST_STATIC_ASSERT(is_const::value == is_const::value);
};
// only register void casts if the types are polymorphic
template
struct base_register
{
struct polymorphic {
static void const * invoke(){
Base const * const b = 0;
Derived const * const d = 0;
return & void_cast_register(d, b);
}
};
struct non_polymorphic {
static void const * invoke(){
return 0;
}
};
static void const * invoke(){
typedef typename mpl::eval_if<
is_polymorphic,
mpl::identity,
mpl::identity
>::type type;
return type::invoke();
}
};
} // namespace detail
template
typename detail::base_cast::type &
base_object(Derived &d)
{
BOOST_STATIC_ASSERT(( is_base_and_derived::value));
BOOST_STATIC_ASSERT(! is_pointer::value);
typedef typename detail::base_cast::type type;
detail::base_register::invoke();
return access::cast_reference(d);
}
} // namespace serialization
} // namespace boost
#endif // BOOST_SERIALIZATION_BASE_OBJECT_HPP