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insert_return_type is only defined for containers with unique keysSection: 23.2.7 [associative.reqmts], 23.2.8 [unord.req] Status: Resolved Submitter: Daniel James Opened: 2016-11-24 Last modified: 2020-09-06
Priority: Not Prioritized
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Discussion:
The requirements for associative and unordered associative containers list insert_return_type for all
containers, but looking at the class description in 23.4.3.1 [map.overview], 23.4.4.1 [multimap.overview]
etc. it's only defined for containers with unique keys. Jonathan Wakely pointed out that this depends on the
resolution of LWG 2772(i), which might remove insert_return_type completely.
insert_return_type
(map and set only)' and in 23.2.8 [unord.req]: 'insert_return_type
(unordered_map and unordered_set only)'. Or maybe something like
'(containers with unique keys only)'.
[Issues Telecon 16-Dec-2016]
Resolved by adoption of P0508R0.
Proposed resolution: