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added pseudo-code for facade_iterator_category type function

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[SVN r21736]
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Jeremy Siek
2004-01-14 19:57:11 +00:00
parent 731576fbfe
commit 2854c5c761
10 changed files with 277 additions and 434 deletions
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doc/new-iter-concepts.rst
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@ -367,22 +367,19 @@ Copy Constructible, the following expressions are valid and respect
the stated semantics. ``U`` is the type of any specified member of
type ``T``.
+------------------------------------------------------------------------------------------------------------------------+
|Readable Iterator Requirements (in addition to Assignable and Copy Constructible) |
+-----------------------------------+------------------------+-----------------------------------------------------------+
|Expression |Return Type |Note/Precondition |
+===================================+========================+===========================================================+
|``iterator_traits<X>::value_type`` |``T`` |Any non-reference, |
| | |non-cv-qualified type |
+-----------------------------------+------------------------+-----------------------------------------------------------+
|``*a`` | Convertible to ``T`` |pre: ``a`` is dereferenceable. If ``a == b`` then ``*a`` |
| | | is equivalent to ``*b``. |
+-----------------------------------+------------------------+-----------------------------------------------------------+
|``a->m`` |``U&`` |pre: ``static_cast<T const&>(*a).m`` is well-defined. If |
| | |``static_cast<T&>(*a).m`` is well-defined, equivalent to |
| | |``static_cast<T&>(*a).m``; otherwise, equivalent to |
| | |``static_cast<T const&>(*a).m``. |
+-----------------------------------+------------------------+-----------------------------------------------------------+
+-----------------------------------------------------------------------------------------------------------------------------+
|Readable Iterator Requirements (in addition to Assignable and Copy Constructible) |
+-----------------------------------+------------------------+----------------------------------------------------------------+
|Expression |Return Type |Note/Precondition |
+===================================+========================+================================================================+
|``iterator_traits<X>::value_type`` |``T`` |Any non-reference, |
| | |non-cv-qualified type |
+-----------------------------------+------------------------+----------------------------------------------------------------+
|``*a`` | Convertible to ``T`` |pre: ``a`` is dereferenceable. If ``a == b`` then ``*a`` |
| | | is equivalent to ``*b``. |
+-----------------------------------+------------------------+----------------------------------------------------------------+
|``a->m`` |``U&`` |pre: ``pre: (*a).m`` is well-defined. Equivalent to ``(*a).m``. |
+-----------------------------------+------------------------+----------------------------------------------------------------+
.. We won't say anything about iterator_traits<X>::reference until the DR is resolved. -JGS