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Diffstat (limited to '3rdParty/Boost/src/boost/pointee.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/pointee.hpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/pointee.hpp b/3rdParty/Boost/src/boost/pointee.hpp new file mode 100644 index 0000000..9794b8e --- /dev/null +++ b/3rdParty/Boost/src/boost/pointee.hpp @@ -0,0 +1,74 @@ +#ifndef POINTEE_DWA200415_HPP +# define POINTEE_DWA200415_HPP + +// +// Copyright David Abrahams 2004. Use, modification and distribution is +// 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) +// +// typename pointee<P>::type provides the pointee type of P. +// +// For example, it is T for T* and X for shared_ptr<X>. +// +// http://www.boost.org/libs/iterator/doc/pointee.html +// + +# include <boost/detail/is_incrementable.hpp> +# include <boost/iterator/iterator_traits.hpp> +# include <boost/type_traits/add_const.hpp> +# include <boost/type_traits/remove_cv.hpp> +# include <boost/mpl/if.hpp> +# include <boost/mpl/eval_if.hpp> + +namespace boost { + +namespace detail +{ + template <class P> + struct smart_ptr_pointee + { + typedef typename P::element_type type; + }; + + template <class Iterator> + struct iterator_pointee + { + typedef typename iterator_traits<Iterator>::value_type value_type; + + struct impl + { + template <class T> + static char test(T const&); + + static char (& test(value_type&) )[2]; + + static Iterator& x; + }; + + BOOST_STATIC_CONSTANT(bool, is_constant = sizeof(impl::test(*impl::x)) == 1); + + typedef typename mpl::if_c< +# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551)) + ::boost::detail::iterator_pointee<Iterator>::is_constant +# else + is_constant +# endif + , typename add_const<value_type>::type + , value_type + >::type type; + }; +} + +template <class P> +struct pointee + : mpl::eval_if< + detail::is_incrementable<P> + , detail::iterator_pointee<P> + , detail::smart_ptr_pointee<P> + > +{ +}; + +} // namespace boost + +#endif // POINTEE_DWA200415_HPP |