1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/epoc32/include/stdapis/boost/pointee.hpp Tue Mar 16 16:12:26 2010 +0000
1.3 @@ -0,0 +1,74 @@
1.4 +#ifndef POINTEE_DWA200415_HPP
1.5 +# define POINTEE_DWA200415_HPP
1.6 +
1.7 +//
1.8 +// Copyright David Abrahams 2004. Use, modification and distribution is
1.9 +// subject to the Boost Software License, Version 1.0. (See accompanying
1.10 +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
1.11 +//
1.12 +// typename pointee<P>::type provides the pointee type of P.
1.13 +//
1.14 +// For example, it is T for T* and X for shared_ptr<X>.
1.15 +//
1.16 +// http://www.boost.org/libs/iterator/doc/pointee.html
1.17 +//
1.18 +
1.19 +# include <boost/detail/is_incrementable.hpp>
1.20 +# include <boost/iterator/iterator_traits.hpp>
1.21 +# include <boost/type_traits/add_const.hpp>
1.22 +# include <boost/type_traits/remove_cv.hpp>
1.23 +# include <boost/mpl/if.hpp>
1.24 +# include <boost/mpl/eval_if.hpp>
1.25 +
1.26 +namespace boost {
1.27 +
1.28 +namespace detail
1.29 +{
1.30 + template <class P>
1.31 + struct smart_ptr_pointee
1.32 + {
1.33 + typedef typename P::element_type type;
1.34 + };
1.35 +
1.36 + template <class Iterator>
1.37 + struct iterator_pointee
1.38 + {
1.39 + typedef typename iterator_traits<Iterator>::value_type value_type;
1.40 +
1.41 + struct impl
1.42 + {
1.43 + template <class T>
1.44 + static char test(T const&);
1.45 +
1.46 + static char (& test(value_type&) )[2];
1.47 +
1.48 + static Iterator& x;
1.49 + };
1.50 +
1.51 + BOOST_STATIC_CONSTANT(bool, is_constant = sizeof(impl::test(*impl::x)) == 1);
1.52 +
1.53 + typedef typename mpl::if_c<
1.54 +# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
1.55 + ::boost::detail::iterator_pointee<Iterator>::is_constant
1.56 +# else
1.57 + is_constant
1.58 +# endif
1.59 + , typename add_const<value_type>::type
1.60 + , value_type
1.61 + >::type type;
1.62 + };
1.63 +}
1.64 +
1.65 +template <class P>
1.66 +struct pointee
1.67 + : mpl::eval_if<
1.68 + detail::is_incrementable<P>
1.69 + , detail::iterator_pointee<P>
1.70 + , detail::smart_ptr_pointee<P>
1.71 + >
1.72 +{
1.73 +};
1.74 +
1.75 +} // namespace boost
1.76 +
1.77 +#endif // POINTEE_DWA200415_HPP