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Author SHA1 Message Date
OverMighty
6a85f7cef3
Revert "[libc][math][c23] Implement C23 math function asinpif16" (#150756) 
Reverts llvm/llvm-project#146226

The MPFR test uses `mpfr_asinpi` which requires MPFR 4.2.0 or later, but
the Buildbots are running an older version of MPFR.

See https://lab.llvm.org/buildbot/#/builders/104/builds/27743 for
example.

I said I was going to revert the PR until we have a workaround for older
versions of MPFR, but then I forgot and I just disabled the entrypoints
which doesn't fix the Buildbot builds.
 2025-07-26 15:39:43 +03:00
Mohamed Emad
eed9b4e058
[libc][math][c23] Implement C23 math function asinpif16 (#146226) 
The function is implemented using the following Taylor series that's
generated using [python-sympy](https://www.sympy.org/en/index.html), and
it is very accurate for |x| $$\in [0, 0.5]$$ and has been verified using
Geogebra. The range reduction is used for the rest range (0.5, 1].

$$
\frac{\arcsin(x)}{\pi} \approx 
\begin{aligned}[t]
    &  0.318309886183791x  \\
    & + 0.0530516476972984x^3 \\
    & + 0.0238732414637843x^5 \\
    & + 0.0142102627760621x^7 \\
    & + 0.00967087327815336x^9 \\
    & + 0.00712127941391293x^{11} \\
    & + 0.00552355646848375x^{13} \\
    & + 0.00444514782463692x^{15} \\
    & + 0.00367705242846804x^{17} \\
    & + 0.00310721681820837x^{19} + O(x^{21})
\end{aligned}
$$

## Geogebra graph

![28-06-2025-1913-eDP-1](https://github.com/user-attachments/assets/f70818e1-1b34-406e-962a-a30fdc909f18)

Closes #132210
 2025-07-26 14:02:18 +03:00
Uzair Nawaz
3f3d779ff8
[libc] Implement mbsinit (#150654) 
Implemented public libc function to check if an mbstate describes an
empty state
 2025-07-25 12:45:24 -07:00
sribee8
42b101d844
Revert "[libc] wchar string conversion functions mb to wc" (#150549) 
Reverts llvm/llvm-project#149423

Failing nullptr crash when using sanitizer
 2025-07-24 23:39:16 +00:00
sribee8
af98a245f8
[libc] wchar string conversion functions mb to wc (#149423) 
Implemented an internal multi-byte to wide character string conversion
function, public functions, and tests

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-07-24 23:10:32 +00:00
Uzair Nawaz
7884c077ff
[libc] Implement wcs to mbs family of functions (#149421) 
Implemented internal wcs to mbs internal function + tests
Impelemented wcs to mbs public functions
 2025-07-24 13:15:52 -07:00
William Huynh
becde6d62e
[libc] Fix issue with sigjmp_buf.h not being found (#150439) 
When trying to use <setjmp.h>, it will try to include
llvm-libc-types/sigjmp_buf.h due to the way that headergen works. This
commit creates a dummy file, as the real implementation is found in
llvm-libc-types/jmp_buf.h.
 2025-07-24 19:50:50 +01:00
Uzair Nawaz
f26c0d00df
[libc] Implemented wcsdup libc function (#150453) 
Implemented wcsdup by templating internal strdup function
 2025-07-24 11:29:40 -07:00
sribee8
4f2686e5a1
[libc] Implemented mblen functions (#150141) 
Implemented mblen and mbrlen as well as tests

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-07-24 18:28:25 +00:00
lntue
42017c661c
[libc] Add missing libc.include.inttypes for targets including <inttypes.h>. (#150345) 2025-07-24 04:39:33 +00:00
lntue
66603dd1f1
[libc][NFC] Add stdint.h proxy header to fix dependency issue with <stdint.h> includes. (#150303) 
https://github.com/llvm/llvm-project/issues/149993
 2025-07-23 20:19:52 -04:00
Muhammad Bassiouni
c59e4b5805
[libc][math] fix header generation (#149918) 2025-07-22 01:13:14 +03:00
Roland McGrath
13f7786f72
[libc] Remove trivial .h.def files (#149466) 
Remove all the .h.def files that already express nothing
whatsoever not already expressed in YAML.  Clean up a few YAML
files without materially changing any generated header output.

Many more .h.def files remain that need a bit of conversion in
YAML to express macro requirements and such.
 2025-07-18 11:35:09 -07:00
lntue
a676ecd83f
[libc][math] Add POSIX math constants to math.h header. (#149150) 
https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/math.h.html
 2025-07-18 11:28:22 -04:00
Roland McGrath
72a2d8220a
[libc] Convert dlfcn.h to pure YAML (#149362) 
Remove the unnecessary .h.def file and move all the macro
definitions directly into dlfcn.yaml.
 2025-07-17 15:05:20 -07:00
Prabhu Rajasekaran
e8182fb501
[libc] add wctype.h header (#149202) 
Add basic configurations to generate wctype.h header file. To begin with
this header file just exposes one function iswalpha.
 2025-07-17 13:06:04 -07:00
Uzair Nawaz
711132dfa4
[libc] Implement widechar to integer public functions (#148683) 
Implement public wchar -> integer public functions using templated
internal wcs_to_integer function
 2025-07-14 13:33:12 -07:00
Connector Switch
c3abe3ff22
[libc][math][c23] implement C23 math function tanpif (#147192) 
The smoke test and exhaustive test pass on x86_64 Linux.

Closes #94895.
 2025-07-12 12:39:33 +08:00
William Huynh
e908f6131e
[libc] Fix WEOF and fix 1'000'000 error messages on test failure (#147928) 
1. WEOF is defined as a `wint_t` by the C standard. On certain
architectures, the test won't compile on `-Wall`. This fixes it.
2. If `testSubnormalRange` fails, it will spit out way too many error
messages, which overwhelms my test environment. I reduce this to 1k for
now.

This is required for #145349
 2025-07-11 09:35:04 +01:00
sribee8
d5436b0b95
[libc] wcslcat implementation (#146588) 
implemented wcslcat and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-07-09 23:54:03 +00:00
sribee8
16f046281b
[libc] wcslcpy implementation (#146571) 
Implemented wcslcpy and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-07-09 21:17:16 +00:00
sribee8
47e28d9cd1
[libc] wcscspn implementation (#146158) 
Implemented wcscspn and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-07-01 15:56:09 +00:00
Uzair Nawaz
7a33b709b1
[libc] wcstok implementation (#145989) 
Implemented wcstok and added tests
 2025-06-30 10:41:00 -07:00
Schrodinger ZHU Yifan
a8f460d1dc
[libc] implement sigsetjmp for thumb/thumb2/armv7-a (#138147) 2025-06-30 12:32:14 -04:00
sribee8
ac7e391035
[libc] Implemented wcsnlen (#145610) 
Implemented wcsnlen and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-27 16:51:37 +00:00
Uzair Nawaz
2db0289abe
[libc] Implemented wctomb (#145554) 
Implemented wctomb by calling internal wcrtomb function
Added tests
 2025-06-25 13:23:47 -07:00
sribee8
bc5e5c0114
[libc] wcpncpy implementation (#145430) 
Implemented wcpncpy and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 23:35:28 +00:00
sribee8
10d46cf0d5
[libc] mbtowc implementation (#145405) 
Implemented mbtowcs and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 23:25:13 +00:00
sribee8
b215c8e18f
[libc] wcpcpy implementation (#144802) 
Implemented wcpcpy and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 18:31:13 +00:00
Uzair Nawaz
a911543437
[libc] Implemented wcrtomb internal function and public libc function (#144596) 
Implemented internal wcrtomb function using the CharacterConverter class
public libc function calls this internal function to perform the
conversion
 2025-06-20 14:43:00 -07:00
sribee8
d078ce7c98
[libc] mbrtowc implementation (#144760) 
implemented the internal and public mbrtowc as well as tests for the
public function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-20 20:00:59 +00:00
William Huynh
fd432151a6
[libc] Fix bugs found when testing with all headers (#144049) 
Fixes a couple of bugs found when building. The PR to enable the headers
can be found here: #144114.

- math.yaml: float128 guard
- wchar.yaml: __restrict keyword order
 2025-06-13 10:26:40 -07:00
Uzair Nawaz
b184672ec7
[libc] Implemented wmemmove (#142245) 
Implemented wmemmove and added tests
 2025-06-13 16:48:24 +00:00
Michael Jones
5a6a4b6ba6
[libc] Implement perror (#143624) 
The perror function writes an error message directly to stderr. This
patch adds an implementation, tests, and header generation details.
 2025-06-12 10:45:47 -07:00
Uzair Nawaz
6311f039b2
[libc] Build fixes for widechar characterconverter (#143805) 
Build fixes for wchar CharacterConverter class
 2025-06-12 17:34:45 +00:00
lntue
82f19674bf
[libc] Update size_t and ssize_t definitions to use __SIZE_TYPE__ and __PTRDIFF_TYPE__ respectively. (#143921) 
The current definition of `ssize_t` does not have the same bit width as
`size_t` on 32-bit platforms.
 2025-06-12 13:11:42 -04:00
W. Turner Abney
4039fdb7ba
[libc] add ioctl (#141393) 
Closes #85275
Closes #90317
Updates #97191

---------

Co-authored-by: Joseph Huber <huberjn@outlook.com>
Co-authored-by: Michael Jones <michaelrj@google.com>
 2025-06-12 09:20:32 -07:00
William
117e78fe50
[libc] Add NULL macro definitions to header files (#142764) 
By the C standard, <locale.h>, <stddef.h> <stdio.h>, <stdlib.h>,
<string.h>, <time.h>, and <wchar.h> require NULL to be defined.
 2025-06-11 09:51:34 -07:00
William
a75fc765d3
[libc] Add definitions to embedded AArch32/AArch64 (#142597) 
Add `CLOCKS_PER_SEC` and the older `CLK_TCK`. Allows the user to define
a `__CLK_TCK` to override if necessary.

Also add an extra column for embedded AArch64 in `time.rst`
 2025-06-06 16:05:14 -04:00
sribee8
22dd9a2483
[libc] wmemchr implementation (#142640) 
Implemented wmemchr and tests.
Fixes: #121183

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 17:05:14 -07:00
sribee8
2ff2a076cc
[libc] wcsncpy implementation (#142237) 
Implemented wcsncpy and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 16:37:14 -07:00
sribee8
3887c23059
[libc] wcscat implementation (#142243) 
Implemented wcscat and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 09:58:08 -07:00
Michael Jones
cc68367bb9
[libc][obvious] fix wchar yaml formatting (#142506) 
The yaml ended up with a typo, possibly due to merge issues. This patch
fixes it.
 2025-06-02 17:00:23 -07:00
Uzair Nawaz
c8741851d1
[libc] Implemented wcsncmp (#142429) 
Implemented wcsncmp and added tests
 2025-06-02 16:05:47 -07:00
sribee8
e3d1a33b7e
[libc] wcsstr implementation (#142440) 
Implemented wcsstr and tests.
fixes #124348

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 16:05:12 -07:00
sribee8
9422abf9eb
[libc] wcsncat implementation (#142431) 
Implemented wcsncat and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 15:20:10 -07:00
Uzair Nawaz
dabe983e7e
[libc] Implemented wcsrchr (#142436) 
fixes #124347 
Implemented wcsrchr and added tests
 2025-06-02 15:18:44 -07:00
Uzair Nawaz
62af2a5ae2
[libc] Implemented wcscmp (#142423) 
Implemented wcscmp and added tests
 2025-06-02 15:16:14 -07:00
Uzair Nawaz
c80c452525
[libc] Implemented wmempcpy (#142067) 
Implemented wmempcpy and added tests
 2025-06-02 15:00:46 -07:00
sribee8
e38375310e
[libc] wcscpy implementation (#142228) 
Implemented wcscpy as well as tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 11:20:25 -07:00