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1380.pair and tuple of references need to better specify move-semantics
Section: 22.3 [pairs] Status: Resolved Submitter: DIN Opened: 2010-08-25 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
Addresses DE-16
Several pair and tuple functions in regard to move operations are incorrectly specified if the member types are references, because the result of a std::move cannot be assigned to lvalue-references. In this context the usage of the requirement sets MoveConstructible and CopyConstructible also doesn't make sense, because non-const lvalue-references cannot satisfy these requirements.
[ Resolution proposed by ballot comment ]
Replace the usage of std::move by that of std::forward and replace MoveConstructible and CopyConstructible requirements by other requirements.
[ 2010-10-24 Daniel adds: ]
Accepting n3140 would solve this issue.
[ 2010-11 Batavia: ]
Resolved by adopting n3140.
Proposed resolution:
See n3140.
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