cppdraft_translate/cppdraft/range/to/input/overview.md

[range.to.input.overview]

25 Ranges library [ranges]

25.7 Range adaptors [range.adaptors]

25.7.35 To input view [range.to.input]

25.7.35.1 Overview [range.to.input.overview]

1

#

to_input_view presents a view of an underlying sequence as an input-only non-common range.

[Note 1:

This is useful to avoid overhead that can be necessary to provide support for the operations needed for greater iterator strength.

— end note]

2

#

The name views​::​to_input denotes a range adaptor object ([range.adaptor.object]).

Let E be an expression and let T be decltype((E)).

The expression views​::​to_input(E) is expression-equivalent to:

• (2.1)

  views​::​all(E) if T models input_range, does not satisfy common_range, and does not satisfy forward_range.

• (2.2)

  Otherwise, to_input_view(E).