cplusplus / cplusplus/draft

[module.reach] p3 "any" is ambiguity in the rule

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Description

[module.reach] p3 says

A declaration is reachable if it is reachable from any point in the instantiation context ([module.context]).

Does "any" in the rule mean

option a

there exists a point from which it is reachable

or

option b

The declaration is reachable from all points in the instantiation context such that the declaration can be reachable from an arbitrary point?

According to the example in [module.context] p7, option a seems to be the right intent. [module.reach] p3 may be an improvement if it is

A declaration is reachable if there exists a point in the instantiation context ([module.context]) from which the declaration is reachable.

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Research direction

Start with [module.reach] p3 and compare its wording with the example in [module.context] p7. Confirm whether the example supports the existential interpretation, then update the rule so “any” is unambiguous; done means the wording clearly expresses the intended reachability condition.

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Assessment

Tech stack
tex
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
42/100

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