3176 Commits

Author SHA1 Message Date
Nikolas Klauser
1972d1e86a [libc++] Granularize even more of type_traits
Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126593
2022-06-10 11:56:38 +02:00
Nikolas Klauser
ff6d5dee71 [libc++] Implement ranges::replace{, _if}
Reviewed By: var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126283
2022-06-10 11:54:46 +02:00
Nikolas Klauser
976f37050d [libc++] Granularize __string
Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D127156
2022-06-09 21:04:18 +02:00
Nikolas Klauser
916e9052ba [libc++] Implement ranges::adjacent_find
Reviewed By: Mordante, var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126610
2022-06-08 12:15:03 +02:00
Joe Loser
b2aec7e6ed
Revert "[libc++][test] Mark ranges.transform.pass.cpp UNSUPPORTED for AIX"
This reverts commit 3583826bb52a7f129b55df043e29860aeab9906d.

Instead of marking the test unsupported for AIX, the choice is to bump the
timeout for CI as done in 76c7e1f2a8820b057de1a241422294bf25fdea2d and
222bd83d505728fca2bbe16cef8b93c321dd8c13

Differential Revision: https://reviews.llvm.org/D127242
2022-06-07 19:00:56 -06:00
Louis Dionne
f3966eaf86 [libc++] Make the Debug mode a configuration-time only option
The debug mode has been broken pretty much ever since it was shipped
because it was possible to enable the debug mode in user code without
actually enabling it in the dylib, leading to ODR violations that
caused various kinds of failures.

This commit makes the debug mode a knob that is configured when
building the library and which can't be changed afterwards. This is
less flexible for users, however it will actually work as intended
and it will allow us, in the future, to add various kinds of checks
that do not assume the same ABI as the normal library. Furthermore,
this will make the debug mode more robust, which means that vendors
might be more tempted to support it properly, which hasn't been the
case with the current debug mode.

This patch shouldn't break any user code, except folks who are building
against a library that doesn't have the debug mode enabled and who try
to enable the debug mode in their code. Such users will get a compile-time
error explaining that this configuration isn't supported anymore.

In the future, we should further increase the granularity of the debug
mode checks so that we can cherry-pick which checks to enable, like we
do for unspecified behavior randomization.

Differential Revision: https://reviews.llvm.org/D122941
2022-06-07 16:33:53 -04:00
Mark de Wever
b968c3452b [libc++] Removes _LIBCPP_AVAILABILITY_TO_CHARS.
After moving the std::to_chars base 10 implementation from the dylib to
the header the integral overloads of std::to_chars are available on all
platforms.

Remove the _LIBCPP_AVAILABILITY_TO_CHARS availability macro and update
the tests.

Depends on D125704

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D125745
2022-06-07 18:59:19 +02:00
Nikolas Klauser
b79b2b6772 [libc++] Implement ranges::find_first_of
Reviewed By: Mordante, var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126529
2022-06-06 22:29:02 +02:00
Louis Dionne
a8cf78c739 [libc++][NFC] Move span tests under views.span 2022-06-06 14:06:05 -04:00
Louis Dionne
2453c515ac [libc++][NFC] Fix outdated comment in span test 2022-06-06 14:06:05 -04:00
Louis Dionne
b8f6f9e741 [libc++] Avoid creating temporaries in unary expressions involving valarray
Currently, unary expressions involving valarray will create a temporary.
This leads to dangling references in expressions like `-a * b`, because
`-a` is a temporary and the resulting expression will refer to it. This
patch fixes the problem by creating a lazy expression to perform the unary
operation instead of eagerly creating a temporary valarray. This is
permitted by the Standard, which does not specify the exact type of
most expressions involving valarrays.

This is technically an ABI break, however I believe the actual potential
for breakage is very low.

rdar://90152242

Differential Revision: https://reviews.llvm.org/D125019
2022-06-06 12:58:23 -04:00
Nikolas Klauser
8171586176 [libc++][ranges] Implement ranges::binary_search and ranges::{lower, upper}_bound
Reviewed By: Mordante, var-const, ldionne, #libc

Spies: sstefan1, libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D121964
2022-06-06 13:33:18 +02:00
Joe Loser
3583826bb5
[libc++][test] Mark ranges.transform.pass.cpp UNSUPPORTED for AIX
The `ranges.transform.pass.cpp` often times out on CI for AIX (32-bit and 64-bit)
only. Mark the test as `UNSUPPORTED` for `AIX` for now. It should be looked into in
the future.

Differential Revision: https://reviews.llvm.org/D127051
2022-06-05 13:45:29 -06:00
Joe Loser
4fc502368a
[libc++][test] Skip string_view tests for other vendors on older modes
`string_view` is supported all the way back to C++03 as an extension in
`libc++`, and so many of the tests run in all standards modes for all vendors.
This is unlikely desired by other standard library vendors using our test suite.
So, disable the tests for vendors other than `libc++` in these older standards
modes.

Differential Revision: https://reviews.llvm.org/D126850
2022-06-03 13:51:49 -06:00
Nikolas Klauser
ef8e918261 [libc++] Forward more often to memmove in copy
In D122982 I accidentally disabled the memmove optimization. This re-enables it and adds more cases where copy forwards to memmove.
Fixes https://github.com/llvm/llvm-project/issues/33687

Reviewed By: var-const, #libc, ldionne

Spies: pkasting, ayzhao, dcheng, xbolva00, libcxx-commits

Differential Revision: https://reviews.llvm.org/D124328
2022-06-03 20:29:18 +02:00
Nikolas Klauser
a29a1a33ac [libc++] Fix conjunction/disjunction and mark a few LWG issues as complete
Fixes #54803
Fixes #53133

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D125221
2022-06-03 10:31:42 +02:00
Joe Loser
4be36dc77f
[libc++][test] Fix unused variable warning in string_view tests
In 6423a9f0ec8ba70049ea76e7bcfc9a9d1a54e826, I accidentally thought this was
getting tested, but these variables are unused. Just remove the lines instead of
leaving them commented out.

Differential Revision: https://reviews.llvm.org/D126901
2022-06-02 13:33:37 -06:00
Joe Loser
6423a9f0ec
[libc++][test] Enable some more string_view tests
Some test cases for `ends_with.ptr.pass` and `starts_with.ptr.pass` for
`string_view` are commented out, but work just fine. Uncomment them.

Differential Revision: https://reviews.llvm.org/D126849
2022-06-02 08:56:02 -06:00
Joe Loser
93a375a15c
[libc++][test] Enable constexpr string comparison tests
Some tests in `string.view.comparison` are not enabled due to previous lack of
support for `constexpr std::string`. Now that it is implemented, we can enable
these tests.

Differential Revision: https://reviews.llvm.org/D126737
2022-06-01 19:26:20 -06:00
Mark de Wever
04a3146caa [libc++][format] Fixes string-literal formatting.
Formatting a string-literal had an off-by-one issue where the NUL
terminator became part of the formatted output.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D126665
2022-06-01 17:49:09 +02:00
zhijian
44d5221adb [libc++][CI] AIX does not have alternative for time_put_byname
Reviewers: David Tenty, Mark de Wever

Differential Revision: https://reviews.llvm.org/D126376
2022-05-31 14:20:34 -04:00
zhijian
fa958c3a94 [libc++][CI] fixed "LOCALE_fr_FR_UTF_8" for my_facet for AIX
SUMMARY:

fixed "LOCALE_fr_FR_UTF_8" for my_facet for AIX

Reviewers: David Tenty, Mark de Wever

Differential Revision: https://reviews.llvm.org/D125927
2022-05-31 14:12:01 -04:00
zhijian
248287fe0a [libc++][CI] fixed convert_thousands_sep_ru_RU for Russian in the libcxx/test/support/locale_helpers.h for AIX
Reviewers: David Tenty, Mark de Wever

Differential Revision: https://reviews.llvm.org/D125923
2022-05-31 13:55:59 -04:00
zhijian
9d1b260fae [libc++][CI][AIX] change grouping() return value of std::moneypunct_byname for en_US.UTF-8
Reviewers: David Tenty, Mark de Wever
Differential Revision: https://reviews.llvm.org/D126474
2022-05-31 13:20:31 -04:00
Mark de Wever
9e5c293492 [libc++] Removes __cpp_lib_monadic_optional.
P0798R8 "Monadic operations for std::optional" has been implemented, so
this LWG issue can be adopted.

During review it was discovered another paper bumped the macro. The
part affecting optional of this paper is done, the variant isn't. The
status page is updated to reflect the current state.

Implements
- LWG 3621 Remove feature-test macro __cpp_lib_monadic_optional

Updates status of
- P2231R1 Missing constexpr in std::optional and std::variant

Reviewed By: #libc, philnik, ldionne

Differential Revision: https://reviews.llvm.org/D125813
2022-05-31 19:18:34 +02:00
Joe Loser
40e52d3033
[libc++][test] Enable some ADL robust algorithm tests
Some algorithm ADL robustness tests are commented out, but work as is. Uncomment
them.

Differential Revision: https://reviews.llvm.org/D126670
2022-05-30 17:50:08 -06:00
Joe Loser
7f1e048041
[libc++][test] Remove Clang <= 3.7 workaround in is_default_constructible test
Clang 3.7 and below is not actively used or supported in the test suite now, so
remove the workaround in the test.

Differential Revision: https://reviews.llvm.org/D126603
2022-05-29 11:57:06 -06:00
Nikolas Klauser
34f73804ed [libc++] Remove unused __functional includes
Reviewed By: ldionne, #libc

Spies: arichardson, smeenai, libcxx-commits, arphaman

Differential Revision: https://reviews.llvm.org/D126098
2022-05-28 10:12:39 +02:00
Louis Dionne
a7f9895cc1 [runtimes] Rename various libcpp-has-no-XYZ Lit features to just no-XYZ
Since those features are general properties of the environment, it makes
sense to use them from libc++abi too, and so the name libcpp-has-no-xxx
doesn't make sense.

Differential Revision: https://reviews.llvm.org/D126482
2022-05-27 15:24:45 -04:00
Nikolas Klauser
eb1c50378e [libc++][NFC] Rename rand.dis to rand.dist
Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgrang, mstorsjo

Differential Revision: https://reviews.llvm.org/D126221
2022-05-27 21:22:20 +02:00
Nikolas Klauser
3606da5fba [libc++] Enable ranges_robust_against* and niebloid tests for implemented ranges algorithms
Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D126477
2022-05-27 10:40:01 +02:00
Nikolas Klauser
11e3ad299f [libc++] Implement ranges::is_sorted{, _until}
Reviewed By: Mordante, var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D125608
2022-05-27 10:28:44 +02:00
Nikolas Klauser
0e3dc1a52f [libc++] Implement ranges::{all, any, none}_of
Reviewed By: ldionne, var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D123016
2022-05-26 16:50:08 +02:00
Nikolas Klauser
569d663020 [libc++] Implement ranges::equal
Reviewed By: var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D123681
2022-05-26 10:46:54 +02:00
Joe Loser
5a2dbe49be
[libc++][test] Verify std::ranges::rbegin, crbegin, rend, crend are CPOs
Uncomment the tests to ensure `std::ranges::rbegin` and friends are indeed
customization points objects.

Differential Revision: https://reviews.llvm.org/D126325
2022-05-25 08:48:22 -06:00
Nikolas Klauser
7af89a379c [libc++] Implement ranges::fill{, _n}
Reviewed By: var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D123462
2022-05-25 10:27:13 +02:00
Konstantin Varlamov
b06049bc3b [libc++][NFC] Add more tests to move_{iterator,sentinel}.
More test coverage for the parts added by the One Ranges Proposal.

Differential Revision: https://reviews.llvm.org/D124906
2022-05-24 19:56:12 -07:00
Nikolas Klauser
1d1a191edc [libc++] Implement ranges::reverse
Reviewed By: var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D125752
2022-05-24 10:33:57 +02:00
Aaron Jacobs
c3a2488290 [libc++] type_traits: use __is_core_convertible in __invokable_r.
This fixes incorrect handling of non-moveable types, adding tests for this case.
See [issue 55346](https://github.com/llvm/llvm-project/issues/55346).

The current implementation is based on is_convertible, which is
[defined](https://timsong-cpp.github.io/cppwp/n4659/meta.rel#5) in terms of
validity of the following function:

```
To test() {
  return declval<From>();
}
```

But this doesn't work if To and From are both some non-moveable type, which the
[definition](https://timsong-cpp.github.io/cppwp/n4659/conv#3) of implicit
conversions says should work due to guaranteed copy elision:

```
To to = E;  // E has type From
```

It is this latter definition that is used in the
[definition](https://timsong-cpp.github.io/cppwp/n4659/function.objects#func.require-2)
of INVOKE<R>. Make __invokable_r use __is_core_convertible, which
captures the ability to use guaranteed copy elision, making the
definition correct for non-moveable types.

Fixes llvm/llvm-project#55346.

Reviewed By: #libc, philnik, EricWF

Spies: EricWF, jloser, ldionne, philnik, libcxx-commits

Differential Revision: https://reviews.llvm.org/D125300
2022-05-24 10:22:40 +02:00
Louis Dionne
6cb3fdc278 [libc++] Remove duplicate tests for callable concepts
This is essentially a revert of c7ad02009. Indeed, it seems that both
96dbdd75 and c7ad02009 were committed, but c7ad02009 seems to be only
an older version of 96dbdd75's tests.
2022-05-23 15:38:49 -04:00
Nikolas Klauser
b177a90ce7 [libc++] Always enable the ranges concepts
The ranges concepts were already available in libc++13, so we shouldn't guard them with `_LIBCPP_HAS_NO_INCOMPLETE_RANGES`.
Fixes https://github.com/llvm/llvm-project/issues/54765

Reviewed By: #libc, ldionne

Spies: ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D124011
2022-05-23 20:44:34 +02:00
Nikolas Klauser
06cf0ce90a [libc++] Enable move semantics for vector in C++03
We require move semantics in C++03 anyways, so let's enable them for the containers.

Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D123802
2022-05-19 16:11:56 +02:00
zhijian
4ac0589122 [libc++][CI] fixed a return curr_symbol() for Russian in the libcxx/test/support/locale_helpers.h for AIX
Summary:

fixed a return curr_symbol() for Russian in the libcxx/test/support/locale_helpers.h for AIX

Reviewers:  David Tenty,Mark de Wever
Differential Revision: https://reviews.llvm.org/D125801
2022-05-18 15:46:52 -04:00
Mark de Wever
4d8268fbf4 [libc++][format] Improve format-arg-store.
This optimizes the __format_arg_store type to allow a more efficient
storage of the basic_format_args.

It stores the data in two arrays:
- A struct with the tag of the exposition only variant's type and the
  offset of the element in the data array. Since this array only depends
  on the type information it's calculated at compile time and can be
  shared by different instances of this class.
- The arguments converted to the types used in the exposition only
  variant of basic_format_arg. This means the packed data can be
  directly copied to an element of this variant.

The new code uses rvalue reference arguments in preparation for P2418.
The handle class also has some changes to prepare for P2418. The real
changed for P2418 will be done separately, but these parts make it
easier to implement that paper.

Some parts of existing test code are removed since they were no longer
valid after the changes, but new tests have been added.

Implements parts of:
- P2418 Add support for std::generator-like types to std::format

Completes:
- LWG3473 Normative encouragement in non-normative note

Depends on D121138

Reviewed By: #libc, vitaut, Mordante

Differential Revision: https://reviews.llvm.org/D121514
2022-05-18 20:11:36 +02:00
Mark de Wever
f0e6102950 [libc++][format] Adds formatter<charT[N], charT>.
This formatter isn't in the list of required formatters in

[format.formatter.spec]/2.2
  For each charT, the string type specializations
   template<> struct formatter<charT*, charT>;
  template<> struct formatter<const charT*, charT>;
  template<size_t N> struct formatter<const charT[N], charT>;
  template<class traits, class Allocator>
    struct formatter<basic_string<charT, traits, Allocator>, charT>;
  template<class traits>
    struct formatter<basic_string_view<charT, traits>, charT>;

Since remove_cvref_t<const charT[N]> is charT[N] the formatter is
required by

[format.functions]/25
  Preconditions: formatter<remove_cvref_t<Ti>, charT> meets the
  BasicFormatter requirements ([formatter.requirements]) for each Ti in
  Args.

Depends on D120921

Reviewed By: #libc, Mordante

Differential Revision: https://reviews.llvm.org/D121138
2022-05-18 20:10:16 +02:00
Jonathan Wakely
89cacb9ee7 [libcxx] [test] Add missing header for std::numeric_limits
Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D122571
2022-05-18 14:36:02 +02:00
Joe Loser
496e135b03
[libc++][test] Verify std::views::drop and std::views::join are CPOs
`std::views::drops` and `std::views::join` have been implemented, but the tests
verifying the CPOs for them are still commented out. Uncomment the tests.

Differential Revision: https://reviews.llvm.org/D125618
2022-05-14 22:11:36 -06:00
Konstantin Varlamov
8200e1253f [libc++][ranges] Implement views::drop.
The view itself has been implemented previously -- this patch only adds
the ability to pipe it.

Also finishes the implementation of [P1739](https://wg21.link/p1739) and
[LWG3407](https://wg21.link/lwg3407).

Differential Revision: https://reviews.llvm.org/D125156
2022-05-10 09:31:05 -07:00
Konstantin Varlamov
0102527352 [libc++][ranges] Implement views::single.
This only adds the customization point object (which isn't pipeable),
the view itself has already been implemented previously.

Differential Revision: https://reviews.llvm.org/D124978
2022-05-06 14:27:08 -07:00
Konstantin Varlamov
9924d8d66a [libc++][ranges] Implement views::take.
The view itself has been implemented previously -- this patch only adds
the ability to pipe it.

Also implements [P1739](https://wg21.link/p1739) (partially) and [LWG3407](https://wg21.link/lwg3407).

Differential Revision: https://reviews.llvm.org/D123600
2022-05-06 14:16:13 -07:00