Commit Graph

9 Commits

Author SHA1 Message Date
Martin Janiczek
de73572b3d AK: Fix doc comment for bit_scan_forward
The original doc comment was mistakenly copy-pasted from
count_leading_zeroes_safe, and incorrect. The function is doing
something else: it's counting _trailing_ zeroes instead of _leading_
ones.
2023-10-11 14:36:48 -04:00
Sönke Holz
e300da4db4 AK: Don't use GCC's __builtin_ffs on riscv64 without Zbb extension
GCC redirects `__builtin_ffs` to `ffs` on RISC-V without the Zbb
extension, causing a linker error.
2023-08-21 13:28:22 +02:00
Tim Schumacher
d194011570 AK: Add count_required_bits 2023-05-17 09:08:53 +02:00
Ali Mohammad Pur
ad120606fd AK: Fix build with !USING_AK_GLOBALLY
A couple headers expected names to be in the global namespace, qualify
those names to make sure they're resolved even when the names are not
exported.
One header placed its functions in the global namespace, move those to
the AK namespace to make the concepts resolve.
2022-12-13 08:09:56 +03:30
Steffen Rusitschka
1aa07d7328 AK: Implement FloatExtractor<f128>
This patch adds support for 128-bit floating points in FloatExtractor.

This is required to build SerenityOS on MacOS/aarch64. It might break
building for Raspberry Pi.
2022-12-02 16:22:51 +01:00
Nico Weber
2af028132a AK+Everywhere: Add AK_COMPILER_{GCC,CLANG} and use them most places
Doesn't use them in libc headers so that those don't have to pull in
AK/Platform.h.

AK_COMPILER_GCC is set _only_ for gcc, not for clang too. (__GNUC__ is
defined in clang builds as well.) Using AK_COMPILER_GCC simplifies
things some.

AK_COMPILER_CLANG isn't as much of a win, other than that it's
consistent with AK_COMPILER_GCC.
2022-10-04 23:35:07 +01:00
Filiph Sandström
5a281336c5 AK: Fix usage of undefined variables
The commit that introduced BuiltinWrappers (548529a) accidentally used
`val` instead of `value` in the non `__GNUC__` and `__clang__` versions
of the functions.
2022-07-31 11:08:33 +02:00
Nick Johnson
08e4a1a4dc AK+Everywhere: Replace __builtin bit functions
In order to reduce our reliance on __builtin_{ffs, clz, ctz, popcount},
this commit removes all calls to these functions and replaces them with
the equivalent functions in AK/BuiltinWrappers.h.
2021-12-21 22:13:51 +01:00
Nick Johnson
548529ace4 AK: Add BuiltinWrappers.h
The goal of this file is to enable C++ overloaded functions for
standard builtin functions that we use. It contains fallback
implementations for systems that do not have the builtins available.
2021-12-18 23:36:08 +01:00