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Author SHA1 Message Date
Konstantin Varlamov 43bc1e5600 [libc++][ranges] Implement Ranges changes to `istream{,buf}_iterator`. 
The changes from the One Ranges Proposal amount to adding:
- a constructor that takes a `default_sentinel_t` and is equivalent to
  the default constructor;
- an `operator==` that compares the iterator to `default_sentinel_t`.

The original proposal defined two overloads for `operator==` (different
argument order) as well as `operator!=`. This has been removed by
[P1614](https://wg21.link/p1614).

Differential Revision: https://reviews.llvm.org/D119620
 2022-02-15 16:59:42 -08:00
Konstantin Varlamov 55bd22f853 [libc++][ranges] Implement rbegin, rend, crbegin and crend. 
Differential Revision: https://reviews.llvm.org/D119057
 2022-02-14 03:29:59 -08:00
Konstantin Varlamov aff115420d [libc++][ranges][NFC] Fix a typo in links on the Ranges status page. 2022-02-10 20:55:27 -08:00
Konstantin Varlamov 2151b3d093 [libc++][ranges][NFC] Update the status of predefined iterators. 
`{back,front}_insert_iterator` and `ostream{,buf}_iterator` effectively
fully implement the One Ranges Proposal already, so mark them as done:
- the change to `difference_type` was made by D103273;
- default constructors and the associated default member initializers
  were removed by wg21.link/P2325 (implemented by D102468).

Also fix a stale template signature in the `<iterator>` synopsis.
 2022-02-10 18:49:52 -08:00
Konstantin Varlamov 8f1d8785df [libc++][ranges] Implement `permutable`. 
Differential Revision: https://reviews.llvm.org/D119222
 2022-02-09 20:34:20 -08:00
Konstantin Varlamov 254ee89c7a [libc++][ranges][NFC] On the Ranges status page, fix some broken links. 2022-02-04 11:58:35 -08:00
Konstantin Varlamov 823fa098aa [libc++][ranges][NFC] Test the specializations of `tuple_{size,element}` for ranges. 
Also update the synopsis in `<ranges>` to mention the specializations.

Differential Revision: https://reviews.llvm.org/D118686
 2022-02-02 22:58:33 -08:00
Konstantin Varlamov 7e9d19016e [libc++][ranges][NFC] Small updates to the Ranges status page: 
- note that `split_view` has been renamed to `lazy_split_view`.
- fix formatting.
 2022-02-02 13:33:15 -08:00
Konstantin Varlamov e65d3760a3 [libc++][ranges] Implement `indirectly_copyable{,_storable}`. 
Also refactor tests for `indirectly_movable{,_storable}`.

Differential Revision: https://reviews.llvm.org/D118432
 2022-02-02 13:27:44 -08:00
Konstantin Varlamov a37a05d0dc [libc++][ranges][NFC] In the Ranges status, mark move_sentinel as "in progress" 2022-02-02 13:15:54 -08:00
Konstantin Varlamov 298331f14d [libc++][ranges][NFC] Test new requirements for `basic_string_view` and `span` iterators. 
Note that most changes to `strings` and `views.span` from the One Ranges
Proposal are no longer applicable:
- free `begin` and `end` functions taking `basic_string_view` and `span`
  were removed by [P1870](http://wg21.link/p1870);
- `span::const_iterator` was removed by [LWG3320](https://cplusplus.github.io/LWG/lwg-defects.html#3320).

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D118687
 2022-02-02 12:54:39 -08:00
Konstantin Varlamov f681d7d558 [libc++][ranges][NFC] Add contiguous_iterator_tag to the <iterator> synopsis 
It was previously implemented by commit [45d048c20](https://reviews.llvm.org/rG45d048c20440989df2b4e1be1f9343225e7741ab).

Reviewed By: #libc, Quuxplusone, philnik, ldionne

Differential Revision: https://reviews.llvm.org/D118751
 2022-02-02 12:53:15 -08:00
Konstantin Varlamov e1f7edb64b [libc++][ranges][NFC] Fix an inconsistent patch link on the Ranges status page. 2022-02-01 16:50:33 -08:00
Konstantin Varlamov 039e55d618 [libc++][ranges][NFC] In the Ranges status, list the changes to stream.iterators 2022-02-01 14:41:09 -08:00
Konstantin Varlamov d5ce90f414 [libc++][ranges][NFC] In the Ranges status, list the changes to predef.iterators 2022-02-01 14:34:40 -08:00
Konstantin Varlamov 85dae4c11e [libc++][ranges][NFC] Fix formatting on newly-added links on the Ranges status page. 2022-01-31 14:45:21 -08:00
Konstantin Varlamov 7c89c2ac6f [libc++][ranges][NFC] Add some missing links to the Ranges status page. 2022-01-31 11:23:40 -08:00
Arthur O'Dwyer c965d5448e [libc++] [ranges] Implement std::ranges::distance 
This includes an experimental workaround for
LWG3664 "LWG3392 broke std::ranges::distance(a, a+3)",
but the workaround may be incomplete, I'm not sure.
This should be re-audited when LWG3664 is actually adopted,
to see if we need to change anything about our implementation.

See also https://github.com/microsoft/STL/pull/2500

Differential Revision: https://reviews.llvm.org/D117940
 2022-01-31 12:23:10 -05:00
Konstantin Varlamov 46283589ef [libc++][ranges][NFC] Small cleanup to the Ranges status page. 
- add a few missing links to code reviews;
- reorder the views to follow the same order as in the Standard.
 2022-01-28 22:40:07 -08:00
Konstantin Varlamov c38c134b62 [libc++][ranges][NFC] Update and slightly cleanup Ranges status page. 
- add missing links to sections of the Standard and to patches;
- update the status on a couple of items.
 2022-01-28 20:15:36 -08:00
Arthur O'Dwyer 483f7f5536 [libc++] [ranges] Implement ranges::cdata. 
Differential Revision: https://reviews.llvm.org/D117044
 2022-01-12 22:07:13 -05:00
Konstantin Varlamov b9bc3c107c [libc++][ranges] Implement `construct_at` and `destroy{,_at}`. 
Differential Revision: https://reviews.llvm.org/D116078
 2022-01-12 16:01:04 -08:00
Konstantin Varlamov 8d23b7420c [libc++][ranges] Implement `uninitialized_copy{,_n}` and `uninitialized_move{,_n}`. 
Also implement `in_out_result` which is a prerequisite.

Differential Revision: https://reviews.llvm.org/D116023
 2022-01-10 22:49:50 -08:00
Nikolas Klauser 6d722801d1 [libc++][ranges] Add indirectly_comparable concept 
Add `indirectly_comparable` concept

Reviewed By: Quuxplusone, Mordante, #libc

Spies: mgorny, libcxx-commits

Differential Revision: https://reviews.llvm.org/D116268
 2022-01-04 23:40:57 +01:00
Konstantin Varlamov 754ea6fd4d [libc++][ranges] Implement `uninitialized_value_construct{,_n}` and `uninitialized_fill{,_n}`. 
Also:
- refactor out `__voidify`;
- use the `destroy` algorithm internally;
- refactor out helper classes used in tests for `uninitialized_*`
  algorithms.

Differential Revision: https://reviews.llvm.org/D115626
 2021-12-20 00:24:27 -08:00
Konstantin Varlamov 3f630cff65 [libc++][ranges] Implement ranges::uninitialized_default_construct{,_n}. 
Defined in [`specialized.algorithms`](wg21.link/specialized.algorithms).

Also:
- refactor the existing non-range implementation so that most of it
  can be shared between the range-based and non-range-based algorithms;
- remove an existing test for the non-range version of
  `uninitialized_default_construct{,_n}` that likely triggered undefined
  behavior (it read the values of built-ins after default-initializing
  them, essentially reading uninitialized memory).

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D115315
 2021-12-14 14:11:46 -08:00
Konstantin Varlamov 2d9efcfeec [libc++][ranges] Implement [special.mem.concepts]. 
Implement the exposition-only concepts specified in
`[special.mem.concepts]`. These are all thin wrappers over other
concepts.

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D114761
 2021-12-02 17:58:04 -08:00
Konstantin Varlamov 3b463c4528 [libc++][NFC] Assign some Ranges tasks to varconst. 
Specifically:
- [special.mem.concepts];
- [specialized.algorithms].
 2021-11-18 15:15:21 -08:00
Louis Dionne 1295694364 [libc++][NFC] Add missing link to a ranges review 2021-09-24 11:37:38 -04:00
zoecarver df324bba5c [libcxx][ranges] Add `ranges::join_view`. 
Differential Revision: https://reviews.llvm.org/D107671
 2021-08-13 11:31:08 -07:00
zoecarver 7b20e05c71 [libcxx][ranges] Add `ranges::iota_view`. 
Differential Revision: https://reviews.llvm.org/D107396
 2021-08-13 11:31:08 -07:00
zoecarver f9e58f35e9 [libcxx][ranges] Add `views::counted` CPO. 
Differential Revision: https://reviews.llvm.org/D106923
 2021-08-10 16:42:28 -07:00
zoecarver 9d982c67ba [libcxx][ranges] Add `ranges::reverse_view`. 
Differential Revision: https://reviews.llvm.org/D107096
 2021-08-09 15:09:59 -07:00
zoecarver 3df649e619 [libcxx][docs] Take locks on the last three views. 2021-07-30 15:08:01 -07:00
zoecarver 481ad59b9f [libcxx][ranges] Add `std::ranges::single_view`. 
Differential Revision: https://reviews.llvm.org/D106840
 2021-07-30 10:53:20 -07:00
zoecarver 0f4b41e038 [libcxx][ranges] Add ranges::take_view. 
Differential Revision: https://reviews.llvm.org/D106507
 2021-07-28 12:14:21 -07:00
zoecarver 8a48e6dda9 [libcxx][ranges] Add `counted_iterator`. 
Differential Revision: https://reviews.llvm.org/D106205
 2021-07-27 15:50:11 -07:00
Louis Dionne 7b28c5d376 [libc++] Implement the output_iterator and output_range concepts 
Differential Revision: https://reviews.llvm.org/D106704
 2021-07-26 15:05:17 -04:00
Louis Dionne fbaf7f0bc7 [libc++] Add range_size_t 
Differential Revision: https://reviews.llvm.org/D106708
 2021-07-26 12:19:26 -04:00
zoecarver e5d8b93e5a [libcxx][ranges] Add `ranges::common_view`. 
Differential Revision: https://reviews.llvm.org/D105753
 2021-07-23 09:08:49 -07:00
zoecarver 6f5064cd0c [libc++][docs] Take lock for range.single.view. 
Mark this item as in progress and assigned to me.
 2021-07-22 11:15:24 -07:00
Christopher Di Bella 74fd3cb8cd [libcxx][ranges] implements dangling, borrowed_iterator_t, borrowed_subrange_t 
* Implements part of P0896 'The One Ranges Proposal'
* Implements http://wg21.link/range.dangling

Reviewed By: zoecarver

Differential Revision: https://reviews.llvm.org/D105205
 2021-07-21 21:34:13 +00:00
zoecarver 1a29403d2f [libcxx][ranges] Add common_iterator. 
Differential Revision: https://reviews.llvm.org/D103335
 2021-07-20 08:12:44 -07:00
Louis Dionne 3001b48d76 [libc++] Implement views::all_t and ranges::viewable_range 
Differential Revision: https://reviews.llvm.org/D105816
 2021-07-15 07:54:33 -04:00
zoecarver e5e291e135 [libcxx][docs] Update the ranges status document to reflect the current state of the world. 
Marks a few things as done. Marks a few things as in progress. Assigns a few things to me.
 2021-07-12 13:11:17 -07:00
zoecarver 0e09a41b41 [libcxx][ranges] Add `ranges::transform_view`. 
Reviewed By: cjdb, ldionne, #libc

Differential Revision: https://reviews.llvm.org/D103056
 2021-07-09 10:13:57 -07:00
Louis Dionne cf005c4c50 [libc++] NFC: Move the status docs to their own subdirectory 
This cleans up the libcxx/doc directory quite a bit and will avoid the
proliferation of status files in that directory as new standards are voted.
 2021-07-06 09:48:34 -04:00