boost/type_traits/msvc/remove_pointer.hpp
// Copyright (C) 2004 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_TYPE_TRAITS_MSVC_REMOVE_POINTER_HOLT_2004_0827
#define BOOST_TYPE_TRAITS_MSVC_REMOVE_POINTER_HOLT_2004_0827
#include <boost/type_traits/msvc/typeof.hpp>
#include <boost/type_traits/is_pointer.hpp>
namespace boost {
namespace detail {
template<int IsPointer>
struct remove_pointer_impl_typeof {
template<typename T,typename ID>
struct inner {
typedef T type;
};
};
template<>
struct remove_pointer_impl_typeof<true> {
template<typename T,typename ID>
struct inner {
template<typename U>
static msvc_register_type<U,ID> test(U*);
static msvc_register_type<T,ID> test(...);
BOOST_STATIC_CONSTANT(unsigned,register_test=sizeof(test( *((T*)NULL) ) ));
typedef typename msvc_extract_type<ID>::id2type::type type;
};
};
} //namespace detail
template<typename T>
struct remove_pointer {
typedef typename detail::remove_pointer_impl_typeof<
boost::is_pointer<T>::value
>::template inner<T,remove_pointer<T> >::type type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,remove_pointer,T)
};
} //namespace boost
#endif //BOOST_TYPE_TRAITS_REMOVE_POINTER_HOLT_2004_0827