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clang trunk with -std=c++20 doesn't seem to properly look for an
aggregate initializer here when the type being constructed is a simple
aggregate (e.g. `struct Thing { int a; int b; };`). This template fails
to compile in a usage added 12/16/2020 in `AK/Trie.h`.
Both forms of initialization are supposed to call the
aggregate-initializers but direct-list-initialization delegating to
aggregate initializers is a new addition in c++20 that might not be
implemented yet.
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clang-format seems to barf on these attributes, to make it easier to
use these attributes and have clang-format not mangle the following code
we can hide them behind a macro so clang-format doesn't have to handle it.
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This wasn't testing anything ^^'
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It being an enum value was preventing it from being used without `!!` in
requires clauses (bool also makes more sense anyway).
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`AK::Trie` can be keyed by any given hashable type, and can store any
metadata (including nothing at all).
Also adds a test.
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Problem:
- C functions with no arguments require a single `void` in the argument list.
Solution:
- Put the `void` in the argument list of functions in C header files.
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This was a non-standard specifier alias for %04x. This patch replaces
all uses of it with new-style formatting functions instead.
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This was a non-standard specifier alias for %02x. This patch replaces
all uses of it with new-style formatting functions instead.
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Problem:
- These utility functions are only used in `AK`, but are being defined
in the top-level. This clutters the top-level.
Solution:
- Move the utility functions to `Meta/CMake/utils.cmake` and include
where needed.
- Also, move `all_the_debug_macros.cmake` into `Meta/CMake` directory
to consolidate the location of `*.cmake` script files.
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Problem:
- File globbing is performed at the time of build system
generation. Any files which are not there at that time are not
included. So, when a new file is added it is not built unless the
build system is recreated.
Solution:
- Remove globbing from AK/Tests directory in favor of explicitly
listing the files.
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We were casting the address to Userspace<T> without validating it first
which is no good and will trap an assertion soon after.
Let's catch this sooner with an ASSERT in the Userspace<T> constructor
and update the PT_PEEK and PT_POKE handlers to avoid it.
Fixes #4505.
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Problem:
- `(void)` simply casts the expression to void. This is understood to
indicate that it is ignored, but this is really a compiler trick to
get the compiler to not generate a warning.
Solution:
- Use the `[[maybe_unused]]` attribute to indicate the value is unused.
Note:
- Functions taking a `(void)` argument list have also been changed to
`()` because this is not needed and shows up in the same grep
command.
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Problem:
- Interface is too permissive. It permits iterators of different types
as long as they are comparable.
Solution:
- Require iterators be the same type.
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ByteBuffer previously had a flag that determined whether it owned the
bytes inside it or not (m_owned.) Owned ByteBuffers would free() on
destruction and non-owned ones would not.
This was a huge source of confusion and made it hard to reason about
lifetimes since there were no compile-time clues about whether a buffer
was owned or non-owned.
The adopt mode was used at some point to take over ownership of a
random malloc'ed buffer, but nothing was using it so this patch removes
that as well.
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I was confused by the trim() API, thinking it would mutate the span it
was called on. Mark all const functions that return a new span with
[[nodiscard]] so we can catch such mistakes.
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When a process crashes, we generate a coredump file and write it in
/tmp/coredumps/.
The coredump file is an ELF file of type ET_CORE.
It contains a segment for every userspace memory region of the process,
and an additional PT_NOTE segment that contains the registers state for
each thread, and a additional data about memory regions
(e.g their name).
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Previously urlencode() would encode bytes above 127 incorrectly, printing
them as negative hex values.
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the URL
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This is a convenience API when you just want the rest of the string
starting at some index. We already had substring_view() in the same
flavor, so this is a complement to that.
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Also add a test that would fail to compile if quick_sort tries to copy
anything :P
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This fixes the FIXME about missing matches that go across chunk
boundaries.
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This uses the KMP algorithm to implement the search.
Also replaces the slow route of the normal memmem() with KMP, which
should be fairly faster (O(n + m) as opposed to O(n * m)) :^)
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Formatter<char> internally uses Formatter<StringView> when in
Mode::Character, but that would only accept Mode::{Default,String} and
ASSERT_NOT_REACHED() otherwise, causing String::formatted("{:c}", 'a')
to crash
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Fixes a regression introduced by 5c1b3ce. The commit description there
asserts that the changes allow calling will_be_destroyed and
one_ref_left, which are not required to be const qualified. The
implementation in fact does require the methods to be const qualified,
because we forgot to add the const_cast inside the decltypes :^)
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We also need to append the raw consumed value if *either* of the two
characters after the % isn't a hex digit, not only if *both* aren't.
Fixes #4257.
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It's much more elegant to say 'should_chomp ? Chomp : NoChomp' than to
say 'if (should_chomp) ...(..., Chomp) else ...(...)'.
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This enables us to use keys of type u8 in HashMaps.
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When creating a StringImpl for a C string that starts with a null-byte,
we would ignore the explicitly given length and return the empty
StringImpl - presumably to check for "\0", but this leads to false
positives ("\0foo") so let's only care about the length.
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This patch adds a 128-byte inline buffer that we use before switching
to using a dynamically growing ByteBuffer.
This allows us to avoid heap allocations in many cases, and totally
incidentally also speeds up @nico's favorite test, "disasm /bin/id"
more than 2x. :^)
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