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Section: 24.2.4 [sequence.reqmts] Status: C++11 Submitter: Alisdair Meredith Opened: 2009-03-12 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
Addresses UK 234 [CD1]
The reference to iterator in semantics for back should also allow for const_iterator when called on a const-qualified container. This would be ugly to specify in the 03 standard, but is quite easy with the addition of auto in this new standard.
[ Summit: ]
Agree.
[ Batavia (2009-05): ]
We agree with the proposed resolution. Move to Tentatively Ready.
Proposed resolution:
In 24.2.4 [sequence.reqmts] Table 84, replace iterator with auto in semantics for back:
Table 84 — Optional sequence container operations Expression Return type Operational semantics Container a.back() reference; const_reference for constant a { iteratorauto tmp = a.end();
--tmp;
return *tmp; }vector, list, deque, basic_string