xtd 1.0.0
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enumerable_.hpp
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1
4#pragma once
5#include "../collections/generic/helpers/lesser.hpp"
6#include "../collections/generic/helpers/raw_array.hpp"
7#include "../collections/generic/comparer.hpp"
8#include "../collections/generic/equality_comparer.hpp"
9#include "../collections/generic/enumerator.hpp"
10#define __XTD_STD_INTERNAL__
11#include "../internal/__xtd_std_version.hpp"
12#undef __XTD_STD_INTERNAL__
13#define __XTD_CORE_INTERNAL__
14#include "../internal/__array_definition.hpp"
15#include "../internal/__key_value_pair_definition.hpp"
16#include "../internal/__list_definition.hpp"
17#undef __XTD_CORE_INTERNAL__
18#include "../callable.hpp"
19#include "../decimal.hpp"
20#include "../integer.hpp"
21#include "../iterable.hpp"
22#include "../iterable_value_type.hpp"
23#include "../func_callable.hpp"
24#include "../iequatable.hpp"
25#include "../int32.hpp"
26#include "../int64.hpp"
27#include "../numeric.hpp"
28#include "../optional.hpp"
29#include "../predicate_callable.hpp"
30#include "../static.hpp"
31#include "../usize.hpp"
32#include <algorithm>
33#include <bitset>
34#include <functional>
35#include <queue>
36#include <stack>
37
39template<typename type_t>
40struct __opaque_xtd_linq_enumerable_collection__;
41template<typename type_t, typename param_t>
42struct __opaque_xtd_linq_lazy_enumerable__;
44
46namespace xtd {
48 class range;
49 namespace collections::generic {
50 template<typename type_t>
51 class enumerable_generator;
52 template<typename type_t>
53 class ienumerable;
54 }
56
58 namespace linq {
59
75 class enumerable static_ {
76 public:
78
81 template<typename type_t>
82 using enumerator = typename xtd::collections::generic::enumerator<type_t>;
83
85 template<typename type_t>
86 using iequality_comparer = typename xtd::collections::generic::iequality_comparer<type_t>;
87
89 template<typename type_t>
90 using ienumerable = typename xtd::collections::generic::ienumerable<type_t>;
91
93 template<typename type_t>
94 using list = typename xtd::collections::generic::list<type_t>;
95
97 template<typename key_t, typename value_t>
98 using key_value_pair = xtd::collections::generic::key_value_pair<key_t, value_t>;
100
102
112 template<xtd::iterable source_t, xtd::func_callable<xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> func_t>
113 [[nodiscard]] static auto aggregate(source_t&& source, func_t&& func) -> xtd::iterable_value_type<source_t>;
124 template<typename accumulate_t, xtd::iterable source_t, xtd::func_callable<accumulate_t, accumulate_t, xtd::iterable_value_type<source_t>> func_t>
125 [[nodiscard]] static auto aggregate(source_t&& source, accumulate_t&& seed, func_t&& func) -> accumulate_t;
138 template<typename result_t, typename accumulate_t, xtd::iterable source_t, xtd::func_callable<accumulate_t, accumulate_t, xtd::iterable_value_type<source_t>> func_t, xtd::func_callable<result_t, accumulate_t> result_selector_t>
139 [[nodiscard]] static auto aggregate(source_t&& source, accumulate_t&& seed, func_t&& func, result_selector_t&& result_selector) -> result_t;
140
149 template<xtd::iterable source_t, xtd::predicate_callable<xtd::iterable_value_type<source_t>> predicate_t>
150 [[nodiscard]] static auto all(source_t&& source, predicate_t&& predicate) -> bool;
151
160 template<xtd::iterable source_t>
161 [[nodiscard]] static auto any(source_t&& source) noexcept -> bool;
170 template<xtd::iterable source_t, xtd::predicate_callable<xtd::iterable_value_type<source_t>> predicate_t>
171 [[nodiscard]] static auto any(source_t&& source, predicate_t&& predicate) -> bool;
172
181 template<xtd::iterable source_t>
182 [[nodiscard]] static auto append(source_t&& source, xtd::iterable_value_type<source_t>&& element) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
183
192 template<xtd::iterable source_t>
193 [[nodiscard]] static auto as_enumerable(source_t&& source) noexcept; // Defined in include/xtd/collections/generic/list.hpp
201 template<xtd::iterable source_t>
202 [[nodiscard]] static auto as_enumerable(const source_t& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
210 template<xtd::iterable source_t>
211 [[nodiscard]] static auto as_enumerable(source_t& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
219 template<typename value_t>
220 [[nodiscard]] static auto as_enumerable(std::initializer_list<value_t> source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
229 template<std::forward_iterator iterator_t>
230 [[nodiscard]] static auto as_enumerable(iterator_t first, iterator_t last) noexcept -> xtd::collections::generic::enumerable_generator<typename std::decay<decltype(*first)>::type>;
239 template<std::forward_iterator iterator_t>
240 [[nodiscard]] static auto as_enumerable(iterator_t iterator, xtd::usize length) noexcept -> xtd::collections::generic::enumerable_generator<typename std::decay<decltype(*iterator)>::type>;
249 template<typename value_t, xtd::usize length>
250 [[nodiscard]] static auto as_enumerable(const value_t (&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
259 template<typename value_t, xtd::usize length>
260 [[nodiscard]] static auto as_enumerable(value_t (&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
261
263 template<xtd::usize size_>
264 [[nodiscard]] static auto as_enumerable(const std::bitset<size_>& source) noexcept -> xtd::collections::generic::enumerable_generator<bool>; // defined in xtd/collections/bit_array.hpp
265 template<xtd::usize size_>
266 [[nodiscard]] static auto as_enumerable(std::bitset<size_>& source) noexcept -> xtd::collections::generic::enumerable_generator<bool>; // defined in xtd/collections/bit_array.hpp
267 template<typename value_t, typename container_t>
268 [[nodiscard]] static auto as_enumerable(const std::queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
269 template<typename value_t, typename container_t>
270 [[nodiscard]] static auto as_enumerable(std::queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
271 template<typename value_t, typename container_t>
272 [[nodiscard]] static auto as_enumerable(const std::priority_queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
273 template<typename value_t, typename container_t>
274 [[nodiscard]] static auto as_enumerable(std::priority_queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
275 template<typename value_t, typename container_t>
276 [[nodiscard]] static auto as_enumerable(const std::stack<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
277 template<typename value_t, typename container_t>
278 [[nodiscard]] static auto as_enumerable(std::stack<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
280
285 template<xtd::iterable source_t>
286 requires xtd::real_decimal<xtd::iterable_value_type<source_t>>
287 [[nodiscard]] static auto average(source_t&& source) -> xtd::decimal;
292 template<xtd::iterable source_t>
293 requires xtd::real_double<xtd::iterable_value_type<source_t>>
294 [[nodiscard]] static auto average(source_t&& source) -> double;
299 template<xtd::iterable source_t>
300 requires xtd::real_single<xtd::iterable_value_type<source_t>>
301 [[nodiscard]] static auto average(source_t&& source) -> xtd::single;
306 template<xtd::iterable source_t>
307 requires xtd::signed_integer_32<xtd::iterable_value_type<source_t>>
308 [[nodiscard]] static auto average(source_t&& source) -> double;
313 template<xtd::iterable source_t>
314 requires xtd::signed_integer_64<xtd::iterable_value_type<source_t>>
315 [[nodiscard]] static auto average(source_t&& source) -> double;
316
320 template<xtd::iterable source_t>
321 requires std::same_as<xtd::iterable_value_type<source_t>, xtd::optional<xtd::decimal>>
322 [[nodiscard]] static auto average(source_t&& source) -> xtd::optional<xtd::decimal>;
326 template<xtd::iterable source_t>
327 requires std::same_as<xtd::iterable_value_type<source_t>, xtd::optional<double>>
328 [[nodiscard]] static auto average(source_t&& source) -> xtd::optional<double>;
332 template<xtd::iterable source_t>
333 requires std::same_as<xtd::iterable_value_type<source_t>, xtd::optional<xtd::single>>
334 [[nodiscard]] static auto average(source_t&& source) -> xtd::optional<xtd::single>;
338 template<xtd::iterable source_t>
339 requires std::same_as<xtd::iterable_value_type<source_t>, xtd::optional<xtd::int32>>
340 [[nodiscard]] static auto average(source_t&& source) -> xtd::optional<double>;
344 template<xtd::iterable source_t>
345 requires std::same_as<xtd::iterable_value_type<source_t>, xtd::optional<xtd::int64>>
346 [[nodiscard]] static auto average(source_t&& source) -> xtd::optional<double>;
347
355 template<typename result_t, xtd::iterable source_t>
356 [[nodiscard]] static auto cast(source_t&& source) -> xtd::collections::generic::enumerable_generator<result_t>; // Defined include/xtd/as.hpp
357
365 template<xtd::iterable source_t>
366 [[nodiscard]] static auto chunk(source_t&& source, xtd::usize size) -> xtd::collections::generic::enumerable_generator<xtd::array<xtd::iterable_value_type<source_t>>>; // Defined in include/xtd/array.hpp
367
373 template<xtd::iterable first_t,xtd::iterable second_t>
374 [[nodiscard]] static auto concat(first_t&& first, second_t&& second) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<first_t>>;
375
381 template<xtd::iterable source_t>
382 [[nodiscard]] static auto contains(source_t&& source, const xtd::iterable_value_type<source_t>& value) noexcept -> bool;
389 template<xtd::iterable source_t>
390 [[nodiscard]] static auto contains(source_t&& source, const xtd::iterable_value_type<source_t>& value, const iequality_comparer<xtd::iterable_value_type<source_t>>& comparer) noexcept -> bool;
397 template<xtd::iterable source_t, xtd::func_callable<bool, xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> equater_t>
398 [[nodiscard]] static auto contains(source_t&& source, const xtd::iterable_value_type<source_t>& value, equater_t&& equater) noexcept -> bool;
399
407 template<xtd::iterable source_t>
408 [[nodiscard]] static auto count(source_t&& source) noexcept -> xtd::usize;
417 template<xtd::iterable source_t, xtd::predicate_callable<xtd::iterable_value_type<source_t>> predicate_t>
418 [[nodiscard]] static auto count(source_t&& source, predicate_t&& predicate) noexcept -> xtd::usize;
424 template<xtd::iterable source_t>
425 [[nodiscard]] static auto count(source_t&& source, xtd::iterable_value_type<source_t>&& value) noexcept -> xtd::usize;
426
436 template<typename key_t, xtd::iterable source_t, xtd::callable<key_t, xtd::iterable_value_type<source_t>> key_selector_t>
437 [[nodiscard]] static auto count_by(source_t&& source, key_selector_t&& key_selector) noexcept -> xtd::collections::generic::enumerable_generator<xtd::collections::generic::key_value_pair<key_t, xtd::usize>>;
448 template<typename key_t, xtd::iterable source_t, xtd::callable<key_t, xtd::iterable_value_type<source_t>> key_selector_t>
449 [[nodiscard]] static auto count_by(source_t&& source, key_selector_t&& key_selector, const iequality_comparer<key_t>& key_comparer) noexcept -> xtd::collections::generic::enumerable_generator<xtd::collections::generic::key_value_pair<key_t, xtd::usize>>;
461 template<typename key_t, xtd::iterable source_t, xtd::callable<key_t, xtd::iterable_value_type<source_t>> key_selector_t, xtd::callable<bool, key_t, key_t> key_equater_t>
462 [[nodiscard]] static auto count_by(source_t&& source, key_selector_t&& key_selector, key_equater_t&& key_equater) noexcept -> xtd::collections::generic::enumerable_generator<xtd::collections::generic::key_value_pair<key_t, xtd::usize>>; // Defined in include/xtd/collections/generic/list.hpp
463
471 template<xtd::iterable source_t>
472 [[nodiscard]] static auto default_if_empty(source_t&& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
481 template<xtd::iterable source_t>
482 [[nodiscard]] static auto default_if_empty(source_t&& source, const xtd::iterable_value_type<source_t>& default_value) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
483
488 template<xtd::iterable source_t>
489 [[nodiscard]] static auto distinct(source_t&& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
494 template<xtd::iterable source_t>
495 [[nodiscard]] static auto distinct(source_t&& source, const iequality_comparer<source_t>& comparer) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
501 template<xtd::iterable source_t, xtd::func_callable<bool, xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> equater_t>
502 [[nodiscard]] static auto distinct(source_t&& source, equater_t&& equater) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
503
510 template<xtd::iterable source_t, xtd::predicate_callable<xtd::iterable_value_type<source_t>> prediacte_t>
511 [[nodiscard]] static auto first_or_default(source_t&& source, prediacte_t&& predicate, xtd::iterable_value_type<source_t>&& default_value) noexcept -> xtd::iterable_value_type<source_t>;
517 template<xtd::iterable source_t, xtd::predicate_callable<xtd::iterable_value_type<source_t>> prediacte_t>
518 [[nodiscard]] static auto first_or_default(source_t&& source, prediacte_t&& predicate) noexcept -> xtd::iterable_value_type<source_t>;
524 template<xtd::iterable source_t>
525 [[nodiscard]] static auto first_or_default(source_t&& source, xtd::iterable_value_type<source_t>&& default_value) noexcept -> xtd::iterable_value_type<source_t>;
530 template<xtd::iterable source_t>
531 [[nodiscard]] static auto first_or_default(source_t&& source) noexcept -> xtd::iterable_value_type<source_t>;
532
542 template<xtd::iterable source_t>
543 [[nodiscard]] static auto from(source_t&& source) noexcept; // Defined in include/xtd/collections/generic/list.hpp
552 template<xtd::iterable source_t>
553 [[nodiscard]] static auto from(const source_t& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
562 template<xtd::iterable source_t>
563 [[nodiscard]] static auto from(source_t& source) noexcept -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
572 template<typename value_t>
573 [[nodiscard]] static auto from(std::initializer_list<value_t> source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
585 template<std::forward_iterator iterator_t>
586 [[nodiscard]] static auto from(iterator_t first, iterator_t last) noexcept -> xtd::collections::generic::enumerable_generator<typename std::decay<decltype(*first)>::type>;
596 template<std::forward_iterator iterator_t>
597 [[nodiscard]] static auto from(iterator_t iterator, xtd::usize length) noexcept -> xtd::collections::generic::enumerable_generator<typename std::decay<decltype(*iterator)>::type>;
607 template<typename value_t, xtd::usize length>
608 [[nodiscard]] static auto from(const value_t (&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
618 template<typename value_t, xtd::usize length>
619 [[nodiscard]] static auto from(value_t (&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
620
622 template<xtd::usize size_>
623 [[nodiscard]] static auto from(const std::bitset<size_>& source) noexcept -> xtd::collections::generic::enumerable_generator<bool>; // defined in xtd/collections/bit_array.hpp
624 template<xtd::usize size_>
625 [[nodiscard]] static auto from(std::bitset<size_>& source) noexcept -> xtd::collections::generic::enumerable_generator<bool>; // defined in xtd/collections/bit_array.hpp
626 template<typename value_t, typename container_t>
627 [[nodiscard]] static auto from(const std::queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
628 template<typename value_t, typename container_t>
629 [[nodiscard]] static auto from(std::queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
630 template<typename value_t, typename container_t>
631 [[nodiscard]] static auto from(const std::priority_queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
632 template<typename value_t, typename container_t>
633 [[nodiscard]] static auto from(std::priority_queue<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
634 template<typename value_t, typename container_t>
635 [[nodiscard]] static auto from(const std::stack<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
636 template<typename value_t, typename container_t>
637 [[nodiscard]] static auto from(std::stack<value_t, container_t>& source) noexcept -> xtd::collections::generic::enumerable_generator<value_t>;
639
643 template<xtd::iterable source_t>
644 requires xtd::numeric<xtd::iterable_value_type<source_t>>
645 [[nodiscard]] static auto max(source_t&& source) -> xtd::iterable_value_type<source_t>;
650 template<xtd::iterable source_t, xtd::callable<xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> selector_t>
651 requires xtd::numeric<xtd::iterable_value_type<source_t>>
652 [[nodiscard]] static auto max(source_t&& source, selector_t&& selector) -> xtd::iterable_value_type<source_t>;
657 template<typename result_t, xtd::iterable source_t, xtd::callable<result_t, xtd::iterable_value_type<source_t>> selector_t>
658 requires xtd::numeric<xtd::iterable_value_type<source_t>>
659 [[nodiscard]] static auto max(source_t&& source, selector_t&& selector) -> result_t;
660
664 template<xtd::iterable source_t>
665 requires xtd::numeric<xtd::iterable_value_type<source_t>>
666 [[nodiscard]] static auto min(source_t&& source) -> xtd::iterable_value_type<source_t>;
671 template<xtd::iterable source_t, xtd::callable<xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> selector_t>
672 requires xtd::numeric<xtd::iterable_value_type<source_t>>
673 [[nodiscard]] static auto min(source_t&& source, selector_t&& selector) -> xtd::iterable_value_type<source_t>;
678 template<typename result_t, xtd::iterable source_t, xtd::callable<result_t, xtd::iterable_value_type<source_t>> selector_t>
679 requires xtd::numeric<xtd::iterable_value_type<source_t>>
680 [[nodiscard]] static auto min(source_t&& source, selector_t&& selector) -> result_t;
681
685 template<xtd::iterable source_t>
686 [[nodiscard]] static auto order(source_t&& source) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
691 template<xtd::iterable source_t>
692 [[nodiscard]] static auto order(source_t&& source, const xtd::collections::generic::icomparer<xtd::iterable_value_type<source_t>>& comparer) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
698 template<xtd::iterable source_t, xtd::func_callable<bool, xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> lesser_t>
699 [[nodiscard]] static auto order(source_t&& source, lesser_t&& lesser) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
700
708 template<typename key_t, xtd::iterable source_t, xtd::callable<key_t, xtd::iterable_value_type<source_t>> key_selector_t>
709 [[nodiscard]] static auto order_by(source_t&& source, key_selector_t&& key_selector) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
710
718 template<xtd::iterable source_t, xtd::callable<xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> key_selector_t>
719 [[nodiscard]] static auto order_by(source_t&& source, key_selector_t&& key_selector) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
720
728 template<typename key_t, xtd::iterable source_t, xtd::callable<key_t, xtd::iterable_value_type<source_t>> key_selector_t>
729 [[nodiscard]] static auto order_by_descending(source_t&& source, key_selector_t&& key_selector) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
730
738 template<xtd::iterable source_t, xtd::callable<xtd::iterable_value_type<source_t>, xtd::iterable_value_type<source_t>> key_selector_t>
739 [[nodiscard]] static auto order_by_descending(source_t&& source, key_selector_t&& key_selector) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/collections/generic/list.hpp
740
748 template<xtd::integer integer_t>
749 [[nodiscard]] static auto range(integer_t count) -> xtd::collections::generic::enumerable_generator<integer_t>;
758 template<xtd::integer integer_t>
759 [[nodiscard]] static auto range(integer_t start, integer_t count) -> xtd::collections::generic::enumerable_generator<integer_t>;
766 template<xtd::integer integer_t>
767 [[nodiscard]] static auto range(integer_t start, integer_t count, integer_t step) -> xtd::collections::generic::enumerable_generator<integer_t>;
768
778 template<typename result_t, xtd::iterable source_t>
779 [[nodiscard]] static auto select(source_t&& source, auto&& selector) -> xtd::collections::generic::enumerable_generator<result_t>;
789 template<xtd::iterable source_t>
790 [[nodiscard]] static auto select(source_t&& source, auto&& selector) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
791
796 template<xtd::forward_iterable source_t>
797 [[nodiscard]] static auto shuffle(source_t&& source) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/random.hpp
798
803 template<xtd::iterable source_t>
804 [[nodiscard]] static auto skip(source_t&& source, xtd::usize count) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
805
813 template<xtd::iterable source_t>
814 [[nodiscard]] static auto skip_while(source_t&& source, auto&& predicate) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
815
820 template<xtd::iterable source_t>
821 [[nodiscard]] static auto take(source_t&& source, xtd::usize count) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
827 template<xtd::iterable source_t>
828 [[nodiscard]] static auto take(source_t&& source, const xtd::range& range) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>; // Defined in include/xtd/range.hpp
829
837 template<xtd::iterable source_t>
838 [[nodiscard]] static auto take_while(source_t&& source, auto&& predicate) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
839
849 template<typename source_t>
850 [[nodiscard]] static auto to_array(const ienumerable<source_t>& source); // Defined in include/xtd/array.hpp
851
861 template<typename source_t>
862 [[nodiscard]] static auto to_list(const ienumerable<source_t>& source); // Defined in include/xtd/collections/generic/list.hpp
863
875 template<xtd::iterable source_t>
876 [[nodiscard]] static auto where(source_t&& source, auto&& predicate) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
878
879 private:
880 template<typename type_t>
881 struct enumerable_holder {
882 enumerable_holder(const type_t& value);
883 //enumerable_holder(type_t& value);
884 enumerable_holder(type_t&& value) requires std::movable<type_t>;
885
886 auto get() const -> const xtd::raw_type<type_t>&;
887
888 private:
889 std::optional<type_t> value_;
890 const xtd::raw_type<type_t>* ptr_;
891 };
892
893 template<typename...>
894 static inline constexpr bool always_false_v = false;
895
896 template<typename source_t>
897 requires(requires (const xtd::raw_type<source_t>& source) {{source.size()} -> std::convertible_to<std::size_t>;})
898 [[nodiscard]] static auto invoke_take_with_range(source_t&& source, const xtd::range& range) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
899 template<typename source_t>
900 requires(!requires (const xtd::raw_type<source_t>& source) {{source.size()} -> std::convertible_to<std::size_t>;})
901 [[nodiscard]] static auto invoke_take_with_range(source_t&& source, const xtd::range& range) -> xtd::collections::generic::enumerable_generator<xtd::iterable_value_type<source_t>>;
902
903 template<typename predicate_t, typename value_t>
904 [[nodiscard]] static constexpr auto invoke_predicate_with_optional_index(predicate_t&& predicate, value_t&& value, xtd::usize index) -> bool;
905
906 template<typename result_t, typename selector_t, typename value_t>
907 [[nodiscard]] static auto invoke_selector_with_optional_index(selector_t&& selector, value_t&& value, xtd::usize index) -> result_t;
908 };
909 }
910}
__array_definition.hpp
__key_value_pair_definition.hpp
__list_definition.hpp
__xtd_std_version.hpp
callable.hpp
Contains xtd::callable concept.
xtd::array
Provides methods for creating, manipulating, searching, and sorting arrays, thereby serving as the ba...
Definition array.hpp:64
xtd::collections::generic::enumerable_generator
Represents an enumerable generator that supports deferred, lazy iteration over a collection of a spec...
Definition enumerable_generator.hpp:44
xtd::collections::generic::icomparer
Exposes a method that compares two objects.
Definition icomparer.hpp:30
xtd::collections::generic::ienumerable
Exposes the enumerator, which supports a simple iteration over a collection of a specified type.
Definition ienumerable.hpp:40
xtd::collections::generic::iequality_comparer
Defines methods to support the comparison of objects for equality.
Definition iequality_comparer.hpp:34
xtd::collections::generic::list
Represents a strongly typed list of objects that can be accessed by index. Provides methods to search...
Definition list.hpp:82
xtd::linq::enumerable
Provides a set of static methods for querying objects that implement ienumerable <type_t>.
Definition enumerable_.hpp:75
xtd::linq::enumerable::chunk
static auto chunk(source_t &&source, xtd::usize size) -> xtd::collections::generic::enumerable_generator< xtd::array< xtd::iterable_value_type< source_t > > >
Splits the elements of a sequence into chunks of size at most size.
xtd::linq::enumerable::order_by_descending
static auto order_by_descending(source_t &&source, key_selector_t &&key_selector) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in descending order according to a key.
xtd::linq::enumerable::order
static auto order(source_t &&source, lesser_t &&lesser) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in ascending order.
xtd::linq::enumerable::range
static auto range(integer_t start, integer_t count) -> xtd::collections::generic::enumerable_generator< integer_t >
Generates a sequence of integral numbers within a specified range.
xtd::linq::enumerable::order_by
static auto order_by(source_t &&source, key_selector_t &&key_selector) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in ascending order according to a key.
xtd::linq::enumerable::skip_while
static auto skip_while(source_t &&source, auto &&predicate) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Bypasses elements in a sequence as long as a specified condition is true and then returns the remaini...
xtd::linq::enumerable::order_by_descending
static auto order_by_descending(source_t &&source, key_selector_t &&key_selector) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in descending order according to a key.
xtd::linq::enumerable::max
static auto max(source_t &&source, selector_t &&selector) -> xtd::iterable_value_type< source_t >
Returns the maximum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::ienumerable
typename xtd::collections::generic::ienumerable< type_t > ienumerable
Represents the ienumerable value type.
Definition enumerable_.hpp:90
xtd::linq::enumerable::enumerator
typename xtd::collections::generic::enumerator< type_t > enumerator
Represents the enumerator value type.
Definition enumerable_.hpp:82
xtd::linq::enumerable::distinct
static auto distinct(source_t &&source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns distinct elements from a sequence by using the default equality comparer to compare values.
xtd::linq::enumerable::from
static auto from(std::initializer_list< value_t > source) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::concat
static auto concat(first_t &&first, second_t &&second) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< first_t > >
Concatenates two sequences.
xtd::linq::enumerable::first_or_default
static auto first_or_default(source_t &&source, prediacte_t &&predicate, xtd::iterable_value_type< source_t > &&default_value) noexcept -> xtd::iterable_value_type< source_t >
Returns the first element of the sequence that satisfies a condition, or a specified default value if...
xtd::linq::enumerable::iequality_comparer
typename xtd::collections::generic::iequality_comparer< type_t > iequality_comparer
Represents the ienumerable value type.
Definition enumerable_.hpp:86
xtd::linq::enumerable::min
static auto min(source_t &&source) -> xtd::iterable_value_type< source_t >
Returns the minimum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::count_by
static auto count_by(source_t &&source, key_selector_t &&key_selector, const iequality_comparer< key_t > &key_comparer) noexcept -> xtd::collections::generic::enumerable_generator< xtd::collections::generic::key_value_pair< key_t, xtd::usize > >
Returns the count of elements in the source sequence grouped by key.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(iterator_t first, iterator_t last) noexcept -> xtd::collections::generic::enumerable_generator< typename std::decay< decltype(*first)>::type >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::list
typename xtd::collections::generic::list< type_t > list
Represents the list value type.
Definition enumerable_.hpp:94
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(value_t(&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::select
static auto select(source_t &&source, auto &&selector) -> xtd::collections::generic::enumerable_generator< result_t >
Projects each element of a sequence into a new form.
xtd::linq::enumerable::default_if_empty
static auto default_if_empty(source_t &&source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the elements of the specified sequence or the type parameter's default value in a singleton c...
xtd::linq::enumerable::contains
static auto contains(source_t &&source, const xtd::iterable_value_type< source_t > &value) noexcept -> bool
Determines whether a sequence contains a specified element by using the default equality comparer.
xtd::linq::enumerable::aggregate
static auto aggregate(source_t &&source, accumulate_t &&seed, func_t &&func) -> accumulate_t
Applies an accumulator function over a sequence. The specified seed value is used as the initial accu...
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(const value_t(&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::aggregate
static auto aggregate(source_t &&source, accumulate_t &&seed, func_t &&func, result_selector_t &&result_selector) -> result_t
Applies an accumulator function over a sequence. The specified seed value is used as the initial accu...
xtd::linq::enumerable::take
static auto take(source_t &&source, xtd::usize count) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns a specified number of contiguous elements from the start of a sequence.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> double
Computes the average of a sequence of xtd::int64 values.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::optional< double >
Computes the average of a sequence of optional xtd::int64 values.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(const source_t &source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::optional< double >
Computes the average of a sequence of optional double values.
xtd::linq::enumerable::count_by
static auto count_by(source_t &&source, key_selector_t &&key_selector) noexcept -> xtd::collections::generic::enumerable_generator< xtd::collections::generic::key_value_pair< key_t, xtd::usize > >
Returns the count of elements in the source sequence grouped by key.
xtd::linq::enumerable::first_or_default
static auto first_or_default(source_t &&source, xtd::iterable_value_type< source_t > &&default_value) noexcept -> xtd::iterable_value_type< source_t >
Returns the first element of the sequence that satisfies a condition or a default value if no such el...
xtd::linq::enumerable::from
static auto from(iterator_t iterator, xtd::usize length) noexcept -> xtd::collections::generic::enumerable_generator< typename std::decay< decltype(*iterator)>::type >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::all
static auto all(source_t &&source, predicate_t &&predicate) -> bool
Determines whether all elements of a sequence satisfy a condition.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::optional< xtd::decimal >
Computes the average of a sequence of optional xtd::decimal values.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(iterator_t iterator, xtd::usize length) noexcept -> xtd::collections::generic::enumerable_generator< typename std::decay< decltype(*iterator)>::type >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::distinct
static auto distinct(source_t &&source, equater_t &&equater) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns distinct elements from a sequence by using a specified xtd::collections::generic::iequality_c...
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::optional< xtd::single >
Computes the average of a sequence of optional float values.
xtd::linq::enumerable::order
static auto order(source_t &&source, const xtd::collections::generic::icomparer< xtd::iterable_value_type< source_t > > &comparer) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in ascending order.
xtd::linq::enumerable::from
static auto from(source_t &&source) noexcept
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::max
static auto max(source_t &&source, selector_t &&selector) -> result_t
Returns the maximum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::shuffle
static auto shuffle(source_t &&source) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Shuffles the order of the elements of a sequence.
Definition random.hpp:277
xtd::linq::enumerable::contains
static auto contains(source_t &&source, const xtd::iterable_value_type< source_t > &value, equater_t &&equater) noexcept -> bool
Determines whether a sequence contains a specified element by using a specified equality comparer.
xtd::linq::enumerable::order
static auto order(source_t &&source) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in ascending order.
xtd::linq::enumerable::cast
static auto cast(source_t &&source) -> xtd::collections::generic::enumerable_generator< result_t >
Casts the elements of an xtd::collections::generic::ienumerable to the specified type.
xtd::linq::enumerable::where
static auto where(source_t &&source, auto &&predicate) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Filters a sequence of values based on a predicate.
xtd::linq::enumerable::aggregate
static auto aggregate(source_t &&source, func_t &&func) -> xtd::iterable_value_type< source_t >
Applies an accumulator function over a sequence.
xtd::linq::enumerable::first_or_default
static auto first_or_default(source_t &&source, prediacte_t &&predicate) noexcept -> xtd::iterable_value_type< source_t >
Returns the first element of the sequence that satisfies a condition or a default value if no such el...
xtd::linq::enumerable::from
static auto from(iterator_t first, iterator_t last) noexcept -> xtd::collections::generic::enumerable_generator< typename std::decay< decltype(*first)>::type >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(source_t &&source) noexcept
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::decimal
Computes the average of a sequence of xtd::decimal values.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(source_t &source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::any
static auto any(source_t &&source, predicate_t &&predicate) -> bool
Determines whether any element of a sequence satisfies a condition.
xtd::linq::enumerable::select
static auto select(source_t &&source, auto &&selector) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Projects each element of a sequence into a new form by incorporating the element's index.
xtd::linq::enumerable::from
static auto from(const value_t(&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::min
static auto min(source_t &&source, selector_t &&selector) -> xtd::iterable_value_type< source_t >
Returns the minimum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::from
static auto from(value_t(&array)[length]) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::count
static auto count(source_t &&source, predicate_t &&predicate) noexcept -> xtd::usize
Returns a number that represents how many elements in the specified sequence satisfy a condition.
xtd::linq::enumerable::from
static auto from(const source_t &source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::contains
static auto contains(source_t &&source, const xtd::iterable_value_type< source_t > &value, const iequality_comparer< xtd::iterable_value_type< source_t > > &comparer) noexcept -> bool
Determines whether a sequence contains a specified element by using a specified equality comparer.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> double
Computes the average of a sequence of double values.
xtd::linq::enumerable::to_array
static auto to_array(const ienumerable< source_t > &source)
Creates a xtd::array <type_t> from an xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::append
static auto append(source_t &&source, xtd::iterable_value_type< source_t > &&element) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Appends a value to the end of the sequence.
xtd::linq::enumerable::range
static auto range(integer_t start, integer_t count, integer_t step) -> xtd::collections::generic::enumerable_generator< integer_t >
Generates a sequence of integral numbers within a specified range and step.
xtd::linq::enumerable::as_enumerable
static auto as_enumerable(std::initializer_list< value_t > source) noexcept -> xtd::collections::generic::enumerable_generator< value_t >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::key_value_pair
xtd::collections::generic::key_value_pair< key_t, value_t > key_value_pair
Represents the key value pair value type.
Definition enumerable_.hpp:98
xtd::linq::enumerable::order_by
static auto order_by(source_t &&source, key_selector_t &&key_selector) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Sorts the elements of a sequence in ascending order according to a key.
xtd::linq::enumerable::min
static auto min(source_t &&source, selector_t &&selector) -> result_t
Returns the minimum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::count
static auto count(source_t &&source) noexcept -> xtd::usize
Returns the number of elements in a sequence.
xtd::linq::enumerable::range
static auto range(integer_t count) -> xtd::collections::generic::enumerable_generator< integer_t >
Generates a sequence of integral numbers within a specified range.
xtd::linq::enumerable::first_or_default
static auto first_or_default(source_t &&source) noexcept -> xtd::iterable_value_type< source_t >
Returns the first element of the sequence that satisfies a condition or a default value if no such el...
xtd::linq::enumerable::default_if_empty
static auto default_if_empty(source_t &&source, const xtd::iterable_value_type< source_t > &default_value) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the elements of the specified sequence or the specified value in a singleton collection if th...
xtd::linq::enumerable::skip
static auto skip(source_t &&source, xtd::usize count) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Bypasses a specified number of elements in a sequence and then returns the remaining elements.
xtd::linq::enumerable::from
static auto from(source_t &source) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns the input typed as xtd::collections::generic::ienumerable <type_t>.
xtd::linq::enumerable::distinct
static auto distinct(source_t &&source, const iequality_comparer< source_t > &comparer) noexcept -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns distinct elements from a sequence by using a specified xtd::collections::generic::iequality_c...
xtd::linq::enumerable::count
static auto count(source_t &&source, xtd::iterable_value_type< source_t > &&value) noexcept -> xtd::usize
Returns the number of elements with the specified value.
xtd::linq::enumerable::max
static auto max(source_t &&source) -> xtd::iterable_value_type< source_t >
Returns the maximum value in a sequence of xtd::numeric values.
xtd::linq::enumerable::take
static auto take(source_t &&source, const xtd::range &range) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns a specified number of contiguous elements from the start of a sequence.
xtd::linq::enumerable::take_while
static auto take_while(source_t &&source, auto &&predicate) -> xtd::collections::generic::enumerable_generator< xtd::iterable_value_type< source_t > >
Returns elements from a sequence as long as a specified condition is true, and then skips the remaini...
xtd::linq::enumerable::any
static auto any(source_t &&source) noexcept -> bool
Determines whether a sequence contains any elements.
xtd::linq::enumerable::count_by
static auto count_by(source_t &&source, key_selector_t &&key_selector, key_equater_t &&key_equater) noexcept -> xtd::collections::generic::enumerable_generator< xtd::collections::generic::key_value_pair< key_t, xtd::usize > >
Returns the count of elements in the source sequence grouped by key.
xtd::linq::enumerable::to_list
static auto to_list(const ienumerable< source_t > &source)
Creates a xtd::collections::generic::list <type_t> from an xtd::collections::generic::ienumerable <ty...
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::single
Computes the average of a sequence of float values.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> xtd::optional< double >
Computes the average of a sequence of optional xtd::int32 values.
xtd::linq::enumerable::average
static auto average(source_t &&source) -> double
Computes the average of a sequence of xtd::int32 values.
xtd::range
Represents a range that has start and end indexes.
Definition range.hpp:28
xtd::numeric
Definition numeric.hpp:12
xtd::real_decimal
Definition real_decimal.hpp:13
xtd::real_double
Definition real_double.hpp:13
xtd::real_single
Definition real_single.hpp:13
xtd::signed_integer_32
Definition signed_integer_32.hpp:13
xtd::signed_integer_64
Definition signed_integer_64.hpp:14
decimal.hpp
Contains xtd::decimal type.
equality_comparer.hpp
Contains xtd::collections::generic::equality_comparer <type_t> class.
func_callable.hpp
Contains xtd::func_callable concept.
comparer.hpp
Contains xtd::collections::generic::comparer <type_t> class.
enumerator.hpp
Contains xtd::collections::generic::enumerator <type_t> class.
xtd::iterable_value_type
xtd::raw_type< decltype(*std::begin(std::declval< iterable_t & >()))> iterable_value_type
Represents the orward iterable value type.
Definition iterable_value_type.hpp:29
xtd::func
xtd::delegate< result_t(arguments_t... arguments)> func
Represents a delegate that has variables parameters and returns a value of the type specified by the ...
Definition func.hpp:27
static_
#define static_
This keyword is use to represent a static object. A static object can't be instantiated (constructors...
Definition static.hpp:38
xtd::type
std::type_info type
Stores information about a type.
Definition type.hpp:23
xtd::decimal
long double decimal
Represents a decimal-precision floating-point number.
Definition decimal.hpp:23
xtd::optional
std::optional< type_t > optional
Represents the optional alias on std::optional.
Definition optional.hpp:26
xtd::usize
std::size_t usize
Represents an unsigned size of any object in bytes.
Definition usize.hpp:22
xtd::single
float single
Represents a single-precision floating-point number.
Definition single.hpp:23
xtd::raw_type
std::remove_cvref_t< value_t > raw_type
Represents a raw type alias equivalent to std::remove_cvref_t<value_t>.
Definition raw_type.hpp:25
xtd::predicate
xtd::func< bool, type_t > predicate
Represents a delegate that defines a set of criteria and determines whether the specified object meet...
Definition predicate.hpp:16
iequatable.hpp
Contains xtd::iequatable interface.
int32.hpp
Contains xtd::int32 type.
int64.hpp
Contains xtd::int64 type.
integer.hpp
Contains xtd::integer concept.
iterable.hpp
Contains xtd::iterable concept.
iterable_value_type.hpp
Contains xtd::iterable_value_type alias.
lesser.hpp
Contains xtd::collections::generic::helpers::lesser struct.
xtd::collections::generic
The xtd::collections::generic namespace contains interfaces and classes that define generic collectio...
Definition comparer.hpp:16
xtd::linq
Provides classes and interfaces that support queries that use Language-Integrated Query (LINQ).
Definition enumerable_.hpp:58
xtd
The xtd namespace contains all fundamental classes to access Hardware, Os, System,...
Definition abstract_object.hpp:8
xtd::iterator
const xtd::collections::generic::helpers::wrap_pointer_iterator< pointer > iterator
Represents the iterator of read_only_span value type.
Definition read_only_span.hpp:74
xtd::first
auto first() const -> read_only_span< type_t, count >
Obtains a subspan consisting of the first count elements of the sequence.
Definition read_only_span.hpp:262
xtd::last
auto last() const -> read_only_span< type_t, count >
Obtains a subspan consisting of the last N elements of the sequence.
Definition read_only_span.hpp:287
xtd::length
constexpr auto length() const noexcept -> size_type
Returns the length of the current read_only_span.
Definition read_only_span.hpp:226
xtd::size
constexpr auto size() const noexcept -> size_type
Returns the number of elements.
Definition read_only_span.hpp:230
numeric.hpp
Contains xtd::numeric concept.
optional.hpp
Contains xtd::optional type.
predicate_callable.hpp
Contains xtd::predicate_callable concept.
raw_array.hpp
Contains xtd::collections::generic::helpers::raw_array class.
static.hpp
Contains xtd::static_object class.
xtd::collections::generic::enumerator
Supports a simple iteration over a generic collection.
Definition enumerator.hpp:39
xtd::collections::generic::key_value_pair
Defines a key/value pair that can be set or retrieved.
Definition key_value_pair.hpp:37
usize.hpp
Contains xtd::usize type.
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