<optional> doesn't provide std::begin/endSection: 24.7 [iterator.range] Status: New Submitter: Hewill Kang Opened: 2024-08-02 Last modified: 2024-08-21
Priority: 3
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Discussion:
Since optional now provides begin/end members, it is reasonable
to ensure the validity of std::begin/end after including <optional>.
[2024-08-21; Reflector poll]
Set priority to 3 after reflector poll.
"I would like to hear opinion of P3168 authors, or have the change discussed as a part of P3016.
Proposed resolution:
This wording is relative to N4986.
Modify 24.7 [iterator.range] as indicated:
-1- In addition to being available via inclusion of the
<iterator>header, the function templates in 24.7 [iterator.range] are available when any of the following headers are included:<array>(23.3.2 [array.syn]),<deque>(23.3.4 [deque.syn]),<flat_map>(23.6.7 [flat.map.syn]),<flat_set>(23.6.10 [flat.set.syn]),<forward_list>(23.3.6 [forward.list.syn]),<inplace_vector>(23.3.13 [inplace.vector.syn]),<list>(23.3.8 [list.syn]),<map>(23.4.2 [associative.map.syn]),<optional>(22.5.2 [optional.syn]),<regex>(28.6.3 [re.syn]),<set>(23.4.5 [associative.set.syn]),<span>(23.7.2.1 [span.syn]),<string>(27.4.2 [string.syn]),<string_view>(27.3.2 [string.view.synop]),<unordered_map>(23.5.2 [unord.map.syn]),<unordered_set>(23.5.5 [unord.set.syn]), and<vector>(23.3.10 [vector.syn]).