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33 lines
2.1 KiB
ReStructuredText
33 lines
2.1 KiB
ReStructuredText
.. Copyright David Abrahams 2006. Distributed under the Boost
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.. 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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Incrementable Iterator Concept
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..............................
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A class or built-in type ``X`` models the *Incrementable Iterator*
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concept if, in addition to ``X`` being Assignable and Copy
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Constructible, the following expressions are valid and respect the
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stated semantics.
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+-------------------------------------------------------------------------------------+
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|Incrementable Iterator Requirements (in addition to Assignable, Copy Constructible) |
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+--------------------------------+-------------------------------+--------------------+
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|Expression |Return Type |Assertion/Semantics |
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+================================+===============================+====================+
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|``++r`` |``X&`` |``&r == &++r`` |
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+--------------------------------+-------------------------------+--------------------+
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|``r++`` |``X`` |:: |
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| | | |
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| | | { |
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| | | X tmp = r; |
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| | | ++r; |
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| | | return tmp; |
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| | | } |
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+--------------------------------+-------------------------------+--------------------+
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|``iterator_traversal<X>::type`` |Convertible to | |
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| |``incrementable_traversal_tag``| |
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+--------------------------------+-------------------------------+--------------------+
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