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Section: 24.3.9.6 [forward.list.ops] Status: C++11 Submitter: Arch Robison Opened: 2008-09-08 Last modified: 2023-02-07
Priority: Not Prioritized
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Discussion:
I ran across a small contradiction in working draft n2723.
[forwardlist]p2: A forward_list satisfies all of the requirements of a container (table 90), except that the size() member function is not provided.
[forwardlist.ops]p57: Complexity: At most size() + x.size() - 1 comparisons.
Presumably [forwardlist.ops]p57 needs to be rephrased to not use size(), or note that it is used there only for sake of notational convenience.
[ 2009-03-29 Beman provided proposed wording. ]
[ Batavia (2009-05): ]
We agree with the proposed resolution.
Move to Tentatively Ready.
Proposed resolution:
Change [forwardlist.ops], forward_list operations, paragraph 19, merge complexity as indicated:
Complexity: At most
size() + x.size()distance(begin(), end()) + distance(x.begin(), x.end()) - 1 comparisons.