| |
| // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. |
| // Use, modification and distribution are 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/libs/type_traits for most recent version including documentation. |
| |
| #ifndef BOOST_TT_REMOVE_POINTER_HPP_INCLUDED |
| #define BOOST_TT_REMOVE_POINTER_HPP_INCLUDED |
| |
| #include <boost/config.hpp> |
| |
| #if defined(BOOST_MSVC) |
| #include <boost/type_traits/remove_cv.hpp> |
| #include <boost/type_traits/is_pointer.hpp> |
| #endif |
| |
| namespace boost { |
| |
| #if BOOST_WORKAROUND(BOOST_MSVC, < 1900) |
| |
| namespace detail{ |
| |
| // |
| // We need all this crazy indirection because a type such as: |
| // |
| // T (*const)(U) |
| // |
| // Does not bind to a <T*> or <T*const> partial specialization with VC10 and earlier |
| // |
| template <class T> |
| struct remove_pointer_imp |
| { |
| typedef T type; |
| }; |
| |
| template <class T> |
| struct remove_pointer_imp<T*> |
| { |
| typedef T type; |
| }; |
| |
| template <class T, bool b> |
| struct remove_pointer_imp3 |
| { |
| typedef typename remove_pointer_imp<typename boost::remove_cv<T>::type>::type type; |
| }; |
| |
| template <class T> |
| struct remove_pointer_imp3<T, false> |
| { |
| typedef T type; |
| }; |
| |
| template <class T> |
| struct remove_pointer_imp2 |
| { |
| typedef typename remove_pointer_imp3<T, ::boost::is_pointer<T>::value>::type type; |
| }; |
| } |
| |
| template <class T> struct remove_pointer{ typedef typename boost::detail::remove_pointer_imp2<T>::type type; }; |
| |
| #else |
| |
| template <class T> struct remove_pointer{ typedef T type; }; |
| template <class T> struct remove_pointer<T*>{ typedef T type; }; |
| template <class T> struct remove_pointer<T*const>{ typedef T type; }; |
| template <class T> struct remove_pointer<T*volatile>{ typedef T type; }; |
| template <class T> struct remove_pointer<T*const volatile>{ typedef T type; }; |
| |
| #endif |
| |
| } // namespace boost |
| |
| #endif // BOOST_TT_REMOVE_POINTER_HPP_INCLUDED |