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new files for iterator concepts

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[SVN r22004]
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Jeremy Siek
2004-01-27 17:03:46 +00:00
parent b502873f00
commit 506517191c
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doc/SinglePassIterator.rst Executable file
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Single Pass Iterator Concept
............................
A class or built-in type ``X`` models the *Single Pass Iterator*
concept if the following expressions are valid and respect the stated
semantics.
+------------------------------------------------------------------------------------------+
|Single Pass Iterator Requirements (in addition to Incrementable Iterator and Equality |
|Comparable) |
+--------------------------------+-----------------------------+---------------------------+
|Expression |Return Type |Assertion/Semantics / |
| | |Pre-/Post-condition |
+================================+=============================+===========================+
|``++r`` |``X&`` |pre: ``r`` is |
| | |dereferenceable; post: |
| | |``r`` is dereferenceable or|
| | |``r`` is past-the-end |
+--------------------------------+-----------------------------+---------------------------+
|``a == b`` |convertible to ``bool`` |``==`` is an equivalence |
| | |relation over its domain |
+--------------------------------+-----------------------------+---------------------------+
|``a != b`` |convertible to ``bool`` |``!(a == b)`` |
+--------------------------------+-----------------------------+---------------------------+
|``iterator_traversal<X>::type`` |Convertible to | |
| |``single_pass_traversal_tag``| |
+--------------------------------+-----------------------------+---------------------------+