24 Ranges library [ranges]

24.3 Range access [range.access]

24.3.13 ranges​::​cdata [range.prim.cdata]

1
#
The name ranges​::​cdata denotes a customization point object ([customization.point.object]).
The expression ranges​::​​cdata(E) for a subexpression E of type T is expression-equivalent to:
  • (1.1)
    ranges​::​data(static_­cast<const T&>(E)) if E is an lvalue.
  • (1.2)
    Otherwise, ranges​::​data(static_­cast<const T&&>(E)).
2
#
[Note
:
Whenever ranges​::​cdata(E) is a valid expression, it has pointer to object type.
— end note
]