Proposed resolution:

This wording is relative to N4950.

1. Modify [string.view.template.general] as indicated:

   [Drafting note: The proposed wording also removes the extra code block that previously defined the range]

   -2- For a basic_string_view str, any operation that invalidates a pointer in the range [str.data(), str.data() + str.size()) invalidates pointers, iterators, and references to elements of strreturned from str's member functions.

2. Modify [span.overview] as indicated:

   -4- ElementType is required to be a complete object type that is not an abstract class type.

   -?- For a span s, any operation that invalidates a pointer in the range [s.data(), s.data() + s.size()) invalidates pointers, iterators, and references to elements of s.

[ 2023-11-11 Approved at November 2023 meeting in Kona. Status changed: Voting → WP. ]

[ 2023-06-14 Varna; Move to Ready ]

[ 2023-06-13; Varna ]

The reference to N4910 [string.view.iterators] p2 is located now in N4950 [string.view.template.general] p2 where its says:

For a basic_string_view str, any operation that invalidates a pointer in the range

[str.data(), str.data() + str.size())

invalidates pointers, iterators, and references returned from str's member functions.

The group also suggested to adjust [string.view.template.general] p2 similarly.

[ 2019-06-12 Priority set to 2 after reflector discussion ]

span doesn't explicitly point out when its accessed elements are invalidated like string_view does in [string.view.iterators] p2.