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Showing content from https://cplusplus.github.io/LWG/issue912 below:

Array swap needs to be conceptualized

This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of NAD Concepts status.

Section: 26.7.3 [alg.swap] Status: NAD Concepts Submitter: Daniel Krügler Opened: 2008-10-01 Last modified: 2016-01-28

Priority: Not Prioritized

View all other issues in [alg.swap].

View all issues with NAD Concepts status.

Discussion:

With the adaption of 809⁽ⁱ⁾ we have a new algorithm swap for C-arrays, which needs to be conceptualized.

[ Post Summit Daniel adds: ]

Recommend as NAD Editorial: The changes have already been applied to the WP N2800.

[ Batavia (2009-05): ]

Move to NAD; the changes have already been made.

Proposed resolution:

Replace in 26.7.3 [alg.swap] before p. 3 until p. 4 by

template <class ValueType T, size_t N>
requires Swappable<T>
void swap(T (&a)[N], T (&b)[N]);

Requires: T shall be Swappable.

Effects: swap_ranges(a, a + N, b);

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