cplusplus / cplusplus/draft

[structure.specifications] Should we add an element for semantic requirements of concepts?

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Description

There are many semantic requirements of form "... type(s) model(s) some concept only if..." in specifications of standard concepts. However, as mentioned in #4054, there are also semantic requirements not of such form, and there are cases where semantic requirements are separated into different bullets (e.g. [iterator.concept.random.access]).

Should we add the "semantic requirements" element and specify semantic requirements consistently by it?

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Research direction

Read the discussion in issue #4054 and compare the semantic-requirements examples, including [iterator.concept.random.access]. Determine whether a consistent “semantic requirements” element is wanted and how the separated requirements should be represented. Done means the proposal has a decided scope and the relevant specification structure is updated consistently.

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Assessment

Tech stack
tex
Domain
documentation
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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