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is_incrementable.hpp: checks whether ++x is well-formed pointee.hpp: value_type of iterators or smart pointers indirect_reference.hpp: reference type of iterators or smart pointers indirect_iterator.hpp indirect_iterator_member_types.cpp Use pointee/indirect_reference to select value/reference type. iterator_concepts.hpp: Fixed interoperable test. Hardly tests enough, but it's a start minimum_category.hpp: Better error messages for vc6 indirect_iterator_test.cpp: Workarounds for compilers without SFINAE static_assert_same.hpp: Informative error reports; added a macro. zip_iterator_test.hpp: Added missing #include Jamfile: made zip_iterator test pass with vc6/stlport [SVN r21514]
41 lines
1.1 KiB
C++
Executable File
41 lines
1.1 KiB
C++
Executable File
// Copyright David Abrahams 2004. Use, modification and distribution is
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// subject to the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef INDIRECT_REFERENCE_DWA200415_HPP
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# define INDIRECT_REFERENCE_DWA200415_HPP
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// dereferenceable_traits provides access to the value_type and
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// reference of a Dereferenceable type.
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# include <boost/detail/is_incrementable.hpp>
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# include <boost/iterator/iterator_traits.hpp>
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# include <boost/type_traits/remove_cv.hpp>
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# include <boost/mpl/apply_if.hpp>
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namespace boost {
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namespace detail
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{
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template <class P>
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struct smart_ptr_reference
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{
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typedef typename P::element_type& type;
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};
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}
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template <class P>
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struct indirect_reference
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{
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typedef typename remove_cv<P>::type stripped;
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typedef typename mpl::apply_if<
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detail::is_incrementable<stripped>
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, iterator_reference<stripped>
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, detail::smart_ptr_reference<stripped>
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>::type type;
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};
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} // namespace boost
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#endif // INDIRECT_REFERENCE_DWA200415_HPP
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