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Section: 18.104.22.168 [util.smartptr.shared.const] Status: C++17 Submitter: United States Opened: 2017-02-03 Last modified: 2020-09-06
Priority: Not Prioritized
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Addresses US 129
Paragraph 22: This constructor should not participate in overload resolution unless the requirements are satisfied, in order to give correct results from the is_constructible trait.
Add a Remarks: clause to constrain this constructor not to participate in overload resolution unless the Requires clause is satisfied.
[2017-02-23, Jonathan provides wording]
Accepted as Immediate to resolve NB comment.
This wording is relative to N4640.
Modify 22.214.171.124 [util.smartptr.shared.const] as indicated:
template<class Y> explicit shared_ptr(const weak_ptr<Y>& r);
[…] -25- Throws: […]
-22- Requires: Y* shall be compatible with T*.