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added requirements on the Base argument

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[SVN r21635]
This commit is contained in:
Jeremy Siek
2004-01-12 18:03:04 +00:00
parent b4f1b069be
commit c15707fd70
1 changed files with 26 additions and 15 deletions
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41
doc/iterator_adaptor_ref.rst
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@ -9,9 +9,9 @@
template < template <
class Derived class Derived
, class Base , class Base
, class Value = use_default , class Value = use_default
, class CategoryOrTraversal = use_default , class CategoryOrTraversal = use_default
, class Reference = use_default , class Reference = use_default
, class Difference = use_default , class Difference = use_default
> >
class iterator_adaptor class iterator_adaptor
@ -47,7 +47,19 @@
Base m_iterator; // exposition only Base m_iterator; // exposition only
}; };
__ base_parameters_
__ requirements_
.. _requirements:
``iterator_adaptor`` requirements
---------------------------------
The ``Derived`` template argument must be a publicly derived from
``iterator_adaptor``.
The ``Base`` argument shall be Assignable and Copy Constructible.
.. _base_parameters: .. _base_parameters:
@ -83,18 +95,17 @@ above are defined as follows:
else else
return Difference return Difference
``iterator_adaptor`` usage ``iterator_adaptor`` models
-------------------------- ---------------------------
The ``Derived`` template parameter must be a publicly derived from In order for ``Derived`` to model the iterator concepts corresponding
``iterator_adaptor``. In order for ``Derived`` to model the to ``iterator_traits<Derived>::iterator_category``, the expressions
iterator concepts corresponding to involving ``m_iterator`` in the specifications of those private member
``iterator_traits<Derived>::iterator_category``, the expressions functions of ``iterator_adaptor`` that may be called by
involving ``m_iterator`` in the specifications of those private ``iterator_facade<Derived, V, C, R, D>`` in evaluating any valid
member functions of ``iterator_adaptor`` that may be called by expression involving ``Derived`` in those concepts' requirements.
``iterator_facade<Derived, V, C, R, D>``
in evaluating any valid expression involving ``Derived`` .. The above is confusing and needs a rewrite. -JGS
in those concepts' requirements.
``iterator_adaptor`` public operations ``iterator_adaptor`` public operations
-------------------------------------- --------------------------------------