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ETI refactoring

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[SVN r17614]
This commit is contained in:
Aleksey Gurtovoy
2003-02-24 01:02:31 +00:00
parent 932aec68f9
commit a9ca707add
2 changed files with 127 additions and 0 deletions
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67
include/boost/mpl/aux_/is_msvc_eti_arg.hpp Normal file
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//-----------------------------------------------------------------------------
// boost mpl/aux_/is_msvc_eti_arg.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2001-03
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#ifndef BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED
#define BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED
#include "boost/mpl/aux_/yes_no.hpp"
#include "boost/mpl/aux_/config/eti.hpp"
#include "boost/mpl/aux_/config/static_constant.hpp"
namespace boost { namespace mpl { namespace aux {
#if defined(BOOST_MPL_MSVC_ETI_BUG)
#if defined(BOOST_MPL_MSVC_60_ETI_BUG)
template< typename T >
struct is_msvc_eti_arg
{
BOOST_STATIC_CONSTANT(bool, value = false);
};
#else
struct eti_int_convertible
{
eti_int_convertible(int);
};
template< typename T >
struct is_msvc_eti_arg
{
static no_tag test(...);
static yes_tag test(eti_int_convertible);
static T get();
BOOST_STATIC_CONSTANT(bool, value =
sizeof(test(get())) == sizeof(yes_tag)
);
};
#endif // BOOST_MPL_MSVC_60_ETI_BUG
template<>
struct is_msvc_eti_arg<int>
{
BOOST_STATIC_CONSTANT(bool, value = true);
};
#endif // BOOST_MPL_MSVC_ETI_BUG
}}} // namespace boost::mpl::aux
#endif // BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED

60
include/boost/mpl/aux_/msvc_eti_base.hpp Normal file
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//-----------------------------------------------------------------------------
// boost mpl/aux_/msvc_msvc_eti_base.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2001-03
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#ifndef BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
#define BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
#include "boost/mpl/aux_/config/eti.hpp"
#include "boost/mpl/aux_/is_msvc_eti_arg.hpp"
namespace boost { namespace mpl { namespace aux {
#if defined(BOOST_MPL_MSVC_ETI_BUG)
template< bool > struct msvc_eti_base_impl
{
template< typename T > struct result_
{
typedef T type;
};
};
template<> struct msvc_eti_base_impl<true>
{
template< typename T > struct result_
{
typedef result_ type;
};
};
template< typename T > struct msvc_eti_base
: msvc_eti_base_impl< is_msvc_eti_arg<T>::value >
::template result_<T>
{
};
#else
template< typename T > struct msvc_eti_base
{
typedef T type;
};
#endif // BOOST_MPL_MSVC_ETI_BUG
}}} // namespace boost::mpl::aux
#endif // BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED