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Author SHA1 Message Date
Staubfinger da1023fcc5 AK: Add thresholds to quickselect_inline and Statistics::Median 
I did a bit of Profiling and made the quickselect and median algorithms
use the best of option for the respective input size.
 2023-02-03 19:04:15 +01:00
Staubfinger 6b9344e86c AK: Use AK:quickselect_inline to compute AK::Statistics::median 
Quick select is an algorithm that is able to find the median
of a Vector without fully sorting it.
This replaces the old very naive implementation
for `AK::Statistics::median()` with `AK::quickselect_inline`
 2023-02-03 19:04:15 +01:00
Staubfinger 607441de56 AK: Implement the quick select algorithm as AK::quickselect_inplace 
This adds the quick select algorithm that finds
the kth smallest element for any collection.
Whilst doing so it also partially sorts the collection.
I have also included the option to use different pivoting functions
including median of medians which makes the quick select have
a truely linear time complexity at the costs of enormous overhead,
so this that only really useful for really large datasets.
The same was chosen to reflect the fact that it modifies
the collection in place during the selection process.
 2023-02-03 19:04:15 +01:00
Sam Atkins 7d0529b89c AK: Remove JsonObject::get_deprecated() and ::get_ptr() :^) 2023-02-03 07:19:52 -05:00
Timothy Flynn 2af7447dfd AK: Define HashMap::take to find and remove a value from the map 2023-02-02 19:14:00 +00:00
Timothy Flynn f31bd190b0 AK: Ensure string types are actually considered hash-compatible 
The AnyString concept is currently broken because it checks whether a
StringView is constructible from a type T. The StringView constructors,
however, only accept constant rvalue references - i.e. `T const&`.

This also adds a test to ensure this continues to work.
 2023-02-02 19:14:00 +00:00
Timothy Flynn 2f67f2ba3d AK: Return a constant reference from HashMap's constant get() override 
We cannot return a mutable reference from a constant function.
 2023-02-02 19:14:00 +00:00
Ben Wiederhake e147d0b572 AK: Fix all quadratic-time append-loops over ByteBuffer 2023-01-31 16:58:25 +01:00
Iman Seyed 0ebcc99e12 AK: Remove unused network ordered 'address' variable 2023-01-31 12:42:49 +01:00
Tim Schumacher 093cf428a3 AK: Move memory streams from LibCore 2023-01-29 19:16:44 -07:00
Tim Schumacher 22f0d04f43 AK: Provide a fallback definition for std::nothrow 2023-01-29 19:16:44 -07:00
Tim Schumacher 2470dd3bb5 AK: Move bit streams from LibCore 2023-01-29 19:16:44 -07:00
Tim Schumacher 94f139c111 AK: Move buffered streams from LibCore 2023-01-29 19:16:44 -07:00
Tim Schumacher 8464da1439 AK: Move Stream and SeekableStream from LibCore 
`Stream` will be qualified as `AK::Stream` until we remove the
`Core::Stream` namespace. `IODevice` now reuses the `SeekMode` that is
defined by `SeekableStream`, since defining its own would require us to
qualify it with `AK::SeekMode` everywhere.
 2023-01-29 19:16:44 -07:00
Tim Schumacher 5f2ea31816 AK: Move Handle from LibCore and name it MaybeOwned 
The new name should make it abundantly clear what it does.
 2023-01-29 19:16:44 -07:00
Tim Schumacher 5fa590de71 AK: Remove Buffered 2023-01-29 19:16:44 -07:00
Tim Schumacher ae64b68717 AK: Deprecate the old AK::Stream 
This also removes a few cases where the respective header wasn't
actually required to be included.
 2023-01-29 19:16:44 -07:00
Andreas Kling 230cb3b0cb AK: Add DeprecatedString::from_utf8() 
This will be used in Jakt to help transition off of DeprecatedString.
 2023-01-29 23:41:42 +01:00
Andreas Kling 6b497b8710 AK: Add two helpers to DeprecatedStringCodePointIterator 2023-01-29 23:41:42 +01:00
Linus Groh 9c08bb9555 AK: Remove try_ prefix from FixedArray creation functions 2023-01-28 22:41:36 +01:00
Timothy Flynn e96c64cdb4 AK: Add support for the new FlyString to StringView 2023-01-28 15:24:55 +00:00
Timothy Flynn b61f8cd130 AK: Delete the StringView move-assignment operator for various types 2023-01-28 15:24:55 +00:00
Andreas Kling 2dc657c77e AK: Add DeprecatedStringCodePointIterator 
This is a safe iterator over the underlying code points. It will be used
in Jakt to assist in the migration away from DeprecatedString.
 2023-01-28 09:50:52 +01:00
Timothy Flynn c59268d15b AK: Add String::trim 2023-01-28 00:13:46 +00:00
Timothy Flynn cccaa94767 AK: Add String::join 2023-01-28 00:13:46 +00:00
Timothy Flynn 79aaa2fe0f AK: Allow the kernel to have access to StringBuilder::to_string 
This is mostly to prevent String.h from acquiring ifdef-soup. In any
case, it's fine for the kernel to see this symbol as it is fallible.
 2023-01-28 00:13:46 +00:00
Linus Groh 6e7459322d AK: Remove StringBuilder::build() in favor of to_deprecated_string() 
Having an alias function that only wraps another one is silly, and
keeping the more obvious name should flush out more uses of deprecated
strings.
No behavior change.
 2023-01-27 20:38:49 +00:00
Sam Atkins 09a22ddb2a AK: Remove unimplemented methods 2023-01-27 20:33:18 +00:00
Sam Atkins df07c5be3a AK: Remove unused DateTimeLexer class 2023-01-27 20:33:18 +00:00
Timothy Flynn c35b1371a3 AK: Add an overload of String::find_byte_offset for StringView 2023-01-27 18:00:17 +00:00
Timothy Flynn 76fd5f2756 AK: Add convenience substring wrappers to String to exclude a length 
These overloads exist on other string classes and are used throughout
the code base.
 2023-01-24 16:23:50 -05:00
Timothy Flynn 427b82065c AK: Add a method to create a String with a repeated code point 2023-01-24 16:23:50 -05:00
Timothy Flynn d50724956e AK: Add a method to find the byte offset of a code point 2023-01-24 16:23:50 -05:00
Timothy Flynn 5e44b93af2 AK: Remove [[nodiscard]] attribute from String methods returning ErrorOr 2023-01-24 16:23:50 -05:00
Nico Weber 44de4d163b AK: Make HashMap::try_ensure work with a fallible construction callback 
Co-authored-by: Timothy Flynn <trflynn89@pm.me>
 2023-01-24 14:45:27 +00:00
Nico Weber 8b5b767465 AK: Print leading zeroes after the dot for FixedPoint numbers 
As a nearby comment says, "This is a terrible approximation".
This doesn't make things less terrible, but it does make things
more correct in the given framework of terribleness.

Fixes #17156.
 2023-01-24 13:24:21 +01:00
Nico Weber 9c5820326d AK: Make FixedPoint::create_raw public and constexpr 2023-01-23 18:09:23 +00:00
Sam Atkins c7a66882f4 AK: Make NonnullPtrVectors shuffleable 
AK::shuffle() doesn't work on these, because their operator[] returns a
reference to the pointed-at value, instead of to the NonnullPtr itself.
 2023-01-22 21:31:36 +00:00
Nico Weber aa9037eed4 AK: Add spec comments to Utf16CodePointIterator::operator*() 2023-01-22 21:30:44 +00:00
Timothy Flynn ef275e25b8 AK: Reduce String's allocated data by one byte 
This was copied from allocation_size_for_stringimpl, which had to ensure
the string is null-terminated. String makes no such guarantee.
 2023-01-22 20:27:52 +00:00
Karol Kosek 2d976ab2a6 AK: Define is_trivially_serializable trait for Little and BigEndian<> 
This will allow us get LittleEndian<> and BigEndian<> wrapped types
directly from Stream::read_value<>().
 2023-01-22 20:58:42 +01:00
Timothy Flynn 12c8bc3e85 AK: Add a String factory to create a string from a single code point 2023-01-22 01:03:13 +00:00
Timothy Flynn 8aca8e82cb AK: Change String's default constructor to be constant 
This allows creating expressions such as:

    constexpr Array<String, 10> {};
 2023-01-22 01:03:13 +00:00
Andrew Kaster 7ab37ee22c Everywhere: Remove string.h include from AK/Traits.h and resolve fallout 
A lot of places were relying on AK/Traits.h to give it strnlen, memcmp,
memcpy and other related declarations.

In the quest to remove inclusion of LibC headers from Kernel files, deal
with all the fallout of this included-everywhere header including less
things.
 2023-01-21 10:43:59 -07:00
Tim Schumacher 63cf9b973d AK: Remove FileStream 2023-01-21 14:43:56 +01:00
martinfalisse aec2dadfdd AK: Add split() for String 2023-01-21 14:35:00 +01:00
Timothy Flynn 4f5353cbb8 AK: Rename double_hash to rehash_for_collision 
The name is currently quite confusing as it indicates it hashes doubles.
 2023-01-21 10:36:14 +01:00
Timothy Flynn 60b56892ca AK: Add a type alias for DistinctNumeric's underlying type 2023-01-21 10:36:14 +01:00
Tim Schumacher 49b30d3013 AK: Remove InputBitStream and OutputBitStream 2023-01-21 00:45:33 +00:00
Tim Schumacher d7eead4f4c AK: Remove DuplexMemoryStream 2023-01-20 20:48:40 +00:00