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Diffstat (limited to '3rdParty/Boost/src/boost/random/detail/ptr_helper.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/random/detail/ptr_helper.hpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/random/detail/ptr_helper.hpp b/3rdParty/Boost/src/boost/random/detail/ptr_helper.hpp new file mode 100644 index 0000000..3f3fbdd --- /dev/null +++ b/3rdParty/Boost/src/boost/random/detail/ptr_helper.hpp @@ -0,0 +1,94 @@ +/* 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: ptr_helper.hpp 24096 2004-07-27 03:43:34Z dgregor $ + * + */ + +#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; } +}; + +#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION +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; } +}; +#endif + +} // namespace detail +} // namespace random +} // namespace boost + +// +// BOOST_RANDOM_PTR_HELPER_SPEC -- +// +// Helper macro for broken compilers defines specializations of +// ptr_helper. +// +#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION +# define BOOST_RANDOM_PTR_HELPER_SPEC(T) \ +namespace boost { namespace random { namespace detail { \ +template<> \ +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<> \ +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; } \ +}; \ +}}} +#else +# define BOOST_RANDOM_PTR_HELPER_SPEC(T) +#endif + +#endif // BOOST_RANDOM_DETAIL_PTR_HELPER_HPP |