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38 lines
1.2 KiB
ReStructuredText
38 lines
1.2 KiB
ReStructuredText
.. 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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::
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template <class Dereferenceable>
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struct pointee
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{
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typedef /* see below */ type;
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};
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:Requires: For an object ``x`` of type ``Dereferenceable``, ``*x``
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is well-formed. If ``++x`` is ill-formed it shall neither be
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ambiguous nor shall it violate access control, and
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``Dereferenceable::element_type`` shall be an accessible type.
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Otherwise ``iterator_traits<Dereferenceable>::value_type`` shall
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be well formed. [Note: These requirements need not apply to
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explicit or partial specializations of ``pointee``]
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``type`` is determined according to the following algorithm, where
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``x`` is an object of type ``Dereferenceable``::
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if ( ++x is ill-formed )
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{
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return ``Dereferenceable::element_type``
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}
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else if (``*x`` is a mutable reference to
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std::iterator_traits<Dereferenceable>::value_type)
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{
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return iterator_traits<Dereferenceable>::value_type
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}
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else
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{
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return iterator_traits<Dereferenceable>::value_type const
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}
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