/usr/include/boost/typeof/dmc
Edit: /usr/include/boost/typeof/dmc/typeof_impl.hpp (3347B)
// Copyright (C) 2007 Peder Holt
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_TYPEOF_MSVC_TYPEOF_IMPL_HPP_INCLUDED
# define BOOST_TYPEOF_MSVC_TYPEOF_IMPL_HPP_INCLUDED
# include
# include
# include
namespace boost
{
namespace type_of
{
template struct encode_counter : encode_counter {};
template<> struct encode_counter<0> {};
char (*encode_index(...))[1];
# define BOOST_TYPEOF_INDEX(T) (sizeof(*boost::type_of::encode_index((boost::type_of::encode_counter<1000>*)0)))
# define BOOST_TYPEOF_NEXT_INDEX(next) friend char (*encode_index(encode_counter*))[next];
//Typeof code
template
struct msvc_extract_type
{
struct id2type;
};
template
struct msvc_register_type : msvc_extract_type
{
typedef msvc_extract_type base_type;
struct base_type::id2type // This uses nice VC6.5 and VC7.1 bugfeature, also works for Digital Mars
{
typedef T type;
};
};
template
struct msvc_typeid_wrapper {
typedef typename msvc_extract_type >::id2type id2type;
typedef typename id2type::type type;
};
//Tie it all together
template
struct encode_type
{
//Get the next available compile time constants index
BOOST_STATIC_CONSTANT(unsigned,value=BOOST_TYPEOF_INDEX(T));
//Instantiate the template
typedef typename msvc_register_type >::id2type type;
//Set the next compile time constants index
BOOST_STATIC_CONSTANT(unsigned,next=value+1);
//Increment the compile time constant (only needed when extensions are not active
BOOST_TYPEOF_NEXT_INDEX(next);
};
template
struct sizer
{
typedef char(*type)[encode_type::value];
};
template
typename sizer::type encode_start(T const&);
template
msvc_register_type typeof_register_type(const T&,Organizer* =0);
# define BOOST_TYPEOF(expr) \
boost::type_of::msvc_typeid_wrapper::type
# define BOOST_TYPEOF_TPL(expr) typename BOOST_TYPEOF(expr)
# define BOOST_TYPEOF_NESTED_TYPEDEF_TPL(name,expr) \
struct name {\
BOOST_STATIC_CONSTANT(int,_typeof_register_value=sizeof(boost::type_of::typeof_register_type(expr)));\
typedef typename boost::type_of::msvc_extract_type::id2type id2type;\
typedef typename id2type::type type;\
};
# define BOOST_TYPEOF_NESTED_TYPEDEF(name,expr) \
struct name {\
BOOST_STATIC_CONSTANT(int,_typeof_register_value=sizeof(boost::type_of::typeof_register_type(expr)));\
typedef boost::type_of::msvc_extract_type::id2type id2type;\
typedef id2type::type type;\
};
}
}
#endif//BOOST_TYPEOF_MSVC_TYPEOF_IMPL_HPP_INCLUDED