[span.cons] Add std::
for data(arr)
#6632
Merged
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std::span
has a member functiondata
, which shadowsstd::data
.It is especially awkward that in
data() == data(arr)
, the firstdata
refers to the member, while the second refers tostd::data
. The addition ofstd::
helps to clarify that these twodata
belong to different scopes.