std::ranges::take_while_view<V,Pred>::take_while_view

 

C++

Language

Standard Library Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Technical Specifications

 

Ranges library

Range access
begin cbegin end cend	rbegin crbegin rend crend	size ssize data cdata	empty
Range primitives
iterator_tsentinel_t	range_size_trange_difference_t	range_value_t	range_reference_trange_rvalue_reference_t
Dangling iterator handling
dangling	borrowed_iterator_t	borrowed_subrange_t
Range concepts
range borrowed_range sized_range	common_range view viewable_range	input_range output_range forward_range	bidirectional_range random_access_range contiguous_range
Views
view_interface	subrange
Semiregular wrapper
Factories
empty_viewviews::empty	single_viewviews::single	iota_viewviews::iota	views::counted
Adaptors
views::all_tviews::all join_viewviews::join take_viewviews::take basic_istream_viewistream_view	ref_view                                split_viewviews::split take_while_viewviews::take_while elements_viewviews::elements	common_viewviews::common transform_viewviews::transform drop_viewviews::drop keys_viewviews::keys	reverse_viewviews::reverse filter_viewviews::filter drop_while_viewviews::drop_while values_viewviews::values

 

std::ranges::take_while_view

Member functions

take_while_view::take_while_view

take_while_view::base

take_while_view::pred

take_while_view::begin

take_while_view::end

Deduction guides

Sentinel

take_while_view::sentinel::sentinel

take_while_view::sentinel::base

operator==(take_while_view::sentinel)

 

take_while_view() = default;	(1)	(since C++20)
constexpr take_while_view( V base, Pred pred );	(2)	(since C++20)

Constructs a take_while_view.

1) Default constructor. Value-initializes the underlying view and the predicate. If Pred is not default_initializable, the take_while_view does not hold a predicate, and subsequent use of the predicate (e.g. call of end) is undefined behavior.

2) Move constructs the underlying view from base and the predicate from pred.

Parameters

base	-	underlying view
fun	-	predicate