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918. Swap for tuple needs to be conceptualizedSection: 22.4.4.4 [tuple.swap] Status: NAD Concepts Submitter: Daniel Krügler Opened: 2008-10-04 Last modified: 2016-01-28
Priority: Not Prioritized
View all issues with NAD Concepts status.
Discussion:
Issue 522(i) was accepted after tuple had been conceptualized, therefore this step needs to be completed.
[ Post Summit Daniel adds ]
This is now NAD Editorial (addressed by N2844) except for item 3 in the proposed wording.
[ 2009-05-01 Daniel adds: ]
As of the recent WP (N2857), this issue is now completely covered by editorial changes (including the third bullet), therefore I unconditionally recommend NAD.
[ Batavia (2009-05): ]
We observed that all the proposed changes have already been applied to the Working Draft, rendering this issue moot.
Move to NAD.
Proposed resolution:
In both 22.4.1 [tuple.general]/2 and 22.4.12 [tuple.special] change
template <class Swappable... Types> void swap(tuple<Types...>& x, tuple<Types...>& y);
In 22.4.4 [tuple.tuple], class tuple definition and in 22.4.4.4 [tuple.swap], change
requires Swappable<Types>...void swap(tuple&);
In 22.4.4.4 [tuple.swap] remove the current requires-clause, which says:
Requires: Each type in
Typesshall beSwappable
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