This patch removes obsolete status pages for projects that were
completed: LLVM 18 release, C++20 Ranges and Spaceship support.
Co-authored-by: Hristo Hristov <zingam@outlook.com>
Instead of having various status entries like 'Superseded by XXX',
we use '|Nothing To Do|' but we add a note explaining that the paper
was pulled at another meeting.
We already documented that libc++ was C++14 complete, but we still
documented the status of C++14. Since that is redundant (and I suspect
the C++14 status page was missing some stuff), simply remove them.
The function
template<class Duration>
requires three_way_comparable_with<sys_seconds, sys_time<Duration>>
constexpr auto operator<=>(const leap_second& x, const
sys_time<Duration>& y) noexcept;
Has a recursive constrained. This caused an infinite loop in GCC and is
now hit by https://github.com/llvm/llvm-project/pull/102857.
A fix would be to make this function a hidden friend, this solution is
propsed in LWG4139.
For consistency all comparisons are made hidden friends. Since the issue
causes compilation failures no additional test are needed.
Fixes: https://github.com/llvm/llvm-project/issues/104700
We can only track existing LWG issues because we need a valid LWG issue
number for all issues. I'll create another GH issue to track creating
that LWG issue instead.
- LWG2308 was voted into C++14 in the 2014 Issaquah meeting
- LWG2682 was voted into C++20 in San Diego 2018, not C++17 in Issaquah
- LWG2769 was voted into C++17 in Kona 2017, not Issaquah 2016
## Introduction
This patch implements LWG3564:
`transform_view::iterator<true>::value_type` and `iterator_category`
should use `const F&`.
`transform_view`'s iterator currently obtained from a `const
transform_view` invoke the transformation function as `const`, but the
`value_type` and `iterator_category` determination uses non-`const`
`F&`.
## Reference
-
[[range.transform.iterator]](https://eel.is/c++draft/range.transform.iterator)
- [LWG3564](https://cplusplus.github.io/LWG/issue3564)
This adds addressof at the required places in [input.output]. Some of
the new tests failed since string used operator& internally. These have
been fixed too.
Note the new fstream tests perform output to a basic_string instead of a
double. Using a double requires num_get specialization
num_get<CharT, istreambuf_iterator<CharT,
char_traits_operator_hijacker<CharT>>
This facet is not present in the locale database so the conversion would
fail due to a missing locale facet. Using basic_string avoids using the
locale.
As a drive-by fixes several bugs in the ofstream.cons tests. These
tested ifstream instead of ofstream with an open mode.
Implements:
- LWG3130 [input.output] needs many addressof
Closes#100246.
The tests kept being based on std::string instead of std::string_view to
allow testing with older C++ dialects.
Adds tests for:
- LWG3112 system_error and filesystem_error constructors taking a string
may not be able to meet their postconditions
- Update note for P0156 which was reverted in Kona, to avoid unusual status.
- Add the LWG issue number for an old C++14 NB comment.
- Fix broken link for LWG2118
- Capitalize paper numbers and links consistently
- Remove weird status '* *' which was likely added by mistake
- Make sure we always have the same number of entries. In particular, I
dropped the "Group" entry that was tracked for papers but not for LWG
issues, since I don't think that added much. The group is already
tracked on the paper itself.
- Add "Label" row to all the CSV files.
This is mechanical, but it's necessary if we want to process our CSV
files uniformly, for example to synchronize their state with Github
issues.
There were a few places where we didn't properly quote entries in the
CSV status pages, or where we followed inconsistent spacing. This causes
issue when trying to synchronize status pages with Github issues.
As mentioned in the LWG issue libc++ has already implemented the
optimization. This adds tests and documents the implementation defined
behaviour.
Drive-by fixes an initialization.
The polymorphic_allocator was added in C++17.
This issue was filed in 2022 so well after C++20. This issue adds an
operator==.
Starting with C++20 this adds a compiler generated operator!=. To have
the same behaviour in C++17 and C++20 (and later) a manual operator!= is
defined in C++17.
Implements
- LWG3683 operator== for polymorphic_allocator cannot deduce template
argument in common cases
- LWG3147 Definitions of "likely" and "unlikely" are likely to cause
problems Adjusts the requirements on programs using the Standard
library.
- LWG3328 Clarify that std::string is not good for UTF-8 Adds a
non-normative note, aimed at users of the Standard library.
- LWG3784 std.compat should not provide ::byte and its friends was
implemented during modules.
- LWG3062 Unnecessary decay_t in is_execution_policy_v should be
remove_cvref_t Was implemented while implementing parallel algorithms.
- LWG3362 Strike stop_source's operator!= The removed operator was never
implemented.
- LWG3616 LWG 3498 seems to miss the non-member swap for basic_syncbuf
This was implemented correctly from the start.
- LWG3199 istream >> bitset<0> fails This was implemented in
fc4486c2472b84384d4a31d2436a91bdb9b29792, might be in LLVM-9
- LWG3828 Sync intmax_t and uintmax_t with C2x Standardardized existing
practice.
- LWG3713 Sorted with respect to comparator (only) Wording issue in the
Standard.
- LWG3823 Unnecessary precondition for is_aggregate Changes the
preconditions
- LWG3826 Redundant specification [for overload of yield_value] Changes
a remark to a note
- LWG3203 span element access invalidation Update wording relevant for
users of the Standard library.
This implements the requirements for the container iterator requirements
for array, deque, vector, and `vector<bool>`.
Implements:
- LWG3352 strong_equality isn't a thing
Implements parts of:
- P1614R2 The Mothership has Landed
Fixes: https://github.com/llvm/llvm-project/issues/62486
The work was done in a8ae392718313e64e2d7bc092b00f51476c074b2 which
implements parts of
N4258: Cleaning-up noexcept in the Library
However that's paper Summary of Proposed Changes contains
No change in vector<bool>
This patch updates the status and as a few NFC cleanups. The fixed
version is based on the release page and might be off.
Updates
- LWG3778 vector<bool> missing exception specifications
## Introduction
This patch implements LWG3618: Unnecessary `iter_move` for
`transform_view::iterator`.
`transform_view`'s iterator currently specifies a customization point
for `iter_move`. This customization point does the same thing that the
default implementation would do, but its sole purpose is to ensure the
appropriate conditional `noexcept` specification.
## Reference
-
[[range.transform.iterator]](https://eel.is/c++draft/range.transform.iterator)
- [LWG3618](https://cplusplus.github.io/LWG/issue3618)
Implements parts of:
- P0355 Extending to chrono Calendars and Time Zones
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters
Implementing the Hermite polynomials which are part of C++17's
mathematical special functions. The goal is to get early feedback which
will make implementing the other functions easier. Integration of
functions in chunks (e.g. `std::hermite` at first, then `std::laguerre`,
etc.) might make sense as well (also see note on boost.math below).
I started out from this abandoned merge request:
https://reviews.llvm.org/D58876 .
The C++23 standard defines them in-terms of `/* floating-point type */`
arguments. I have not looked into that.
Note, there is still an ongoing discussion on discourse whether
importing boost.math is an option.
Implements [P1223R5][] completely.
Includes an implementation of `find_last`, `find_last_if`, and
`find_last_if_not`.
[P1223R5]: https://wg21.link/p1223r5
This patch implements P2389R2, which was adopted at the St. Louis meeting.
It builds upon previous enhancements from P2299R3, which introduced deduction
guides and the `dextents` alias template.
Completes
- LWG3232 Inconsistency in zoned_time deduction guides
- LWG3294 zoned_time deduction guides misinterprets stringchar*
Implements parts of:
- P0355 Extending to chrono Calendars and Time Zones
