| /* boost random/detail/ptr_helper.hpp header file |
| * |
| * Copyright Jens Maurer 2002 |
| * Distributed under 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 most recent version including documentation. |
| * |
| * $Id$ |
| * |
| */ |
| |
| #ifndef BOOST_RANDOM_DETAIL_PTR_HELPER_HPP |
| #define BOOST_RANDOM_DETAIL_PTR_HELPER_HPP |
| |
| #include <boost/config.hpp> |
| |
| |
| namespace boost { |
| namespace random { |
| namespace detail { |
| |
| // type_traits could help here, but I don't want to depend on type_traits. |
| template<class T> |
| struct ptr_helper |
| { |
| typedef T value_type; |
| typedef T& reference_type; |
| typedef const T& rvalue_type; |
| static reference_type ref(T& r) { return r; } |
| static const T& ref(const T& r) { return r; } |
| }; |
| |
| template<class T> |
| struct ptr_helper<T&> |
| { |
| typedef T value_type; |
| typedef T& reference_type; |
| typedef T& rvalue_type; |
| static reference_type ref(T& r) { return r; } |
| static const T& ref(const T& r) { return r; } |
| }; |
| |
| template<class T> |
| struct ptr_helper<T*> |
| { |
| typedef T value_type; |
| typedef T& reference_type; |
| typedef T* rvalue_type; |
| static reference_type ref(T * p) { return *p; } |
| static const T& ref(const T * p) { return *p; } |
| }; |
| |
| } // namespace detail |
| } // namespace random |
| } // namespace boost |
| |
| // |
| // BOOST_RANDOM_PTR_HELPER_SPEC -- |
| // |
| // Helper macro for broken compilers defines specializations of |
| // ptr_helper. |
| // |
| # define BOOST_RANDOM_PTR_HELPER_SPEC(T) |
| |
| #endif // BOOST_RANDOM_DETAIL_PTR_HELPER_HPP |