projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | .. Copyright David Abrahams 2006. Distributed under the Boost |
| 2 | .. Software License, Version 1.0. (See accompanying | |
| 3 | .. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 4 | ||
| 5 | Incrementable Iterator Concept | |
| 6 | .............................. | |
| 7 | ||
| 8 | A class or built-in type ``X`` models the *Incrementable Iterator* | |
| 9 | concept if, in addition to ``X`` being Assignable and Copy | |
| 10 | Constructible, the following expressions are valid and respect the | |
| 11 | stated semantics. | |
| 12 | ||
| 13 | ||
| 14 | +-------------------------------------------------------------------------------------+ | |
| 15 | |Incrementable Iterator Requirements (in addition to Assignable, Copy Constructible) | | |
| 16 | | | | |
| 17 | +--------------------------------+-------------------------------+--------------------+ | |
| 18 | |Expression |Return Type |Assertion/Semantics | | |
| 19 | +================================+===============================+====================+ | |
| 20 | |``++r`` |``X&`` |``&r == &++r`` | | |
| 21 | +--------------------------------+-------------------------------+--------------------+ | |
| 22 | |``r++`` |``X`` |:: | | |
| 23 | | | | | | |
| 24 | | | | { | | |
| 25 | | | | X tmp = r; | | |
| 26 | | | | ++r; | | |
| 27 | | | | return tmp; | | |
| 28 | | | | } | | |
| 29 | +--------------------------------+-------------------------------+--------------------+ | |
| 30 | |``iterator_traversal<X>::type`` |Convertible to | | | |
| 31 | | |``incrementable_traversal_tag``| | | |
| 32 | +--------------------------------+-------------------------------+--------------------+ |