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- .. Copyright David Abrahams 2006. 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)
- Lvalue Iterator Concept
- .......................
- The *Lvalue Iterator* concept adds the requirement that the return
- type of ``operator*`` type be a reference to the value type of the
- iterator.
- +-------------------------------------------------------------+
- | Lvalue Iterator Requirements |
- +-------------+-----------+-----------------------------------+
- |Expression |Return Type|Note/Assertion |
- +=============+===========+===================================+
- |``*a`` | ``T&`` |``T`` is *cv* |
- | | |``iterator_traits<X>::value_type`` |
- | | |where *cv* is an optional |
- | | |cv-qualification. |
- | | |pre: ``a`` is |
- | | |dereferenceable. If ``a |
- | | |== b`` then ``*a`` is |
- | | |equivalent to ``*b``. |
- +-------------+-----------+-----------------------------------+
|
