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Its design keeps evolving. See
https://github.com/Nicoshev/rapidhash/releases
It's great to see the design improving, but over time, this will lead to
code rot; versions that aren't widely used but would still have to live
in the standard library forever and be maintained.
Better to be maintained as an external dependency that applications can
opt into. Then, in a few years, if a version proves to be stable and
widely adopted, it could be considered for inclusion in the standard
library.
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added adapter to AnyWriter and GenericWriter to help bridge the gap
between old and new API
make std.testing.expectFmt work at compile-time
std.fmt no longer has a dependency on std.unicode. Formatted printing
was never properly unicode-aware. Now it no longer pretends to be.
Breakage/deprecations:
* std.fs.File.reader -> std.fs.File.deprecatedReader
* std.fs.File.writer -> std.fs.File.deprecatedWriter
* std.io.GenericReader -> std.io.Reader
* std.io.GenericWriter -> std.io.Writer
* std.io.AnyReader -> std.io.Reader
* std.io.AnyWriter -> std.io.Writer
* std.fmt.format -> std.fmt.deprecatedFormat
* std.fmt.fmtSliceEscapeLower -> std.ascii.hexEscape
* std.fmt.fmtSliceEscapeUpper -> std.ascii.hexEscape
* std.fmt.fmtSliceHexLower -> {x}
* std.fmt.fmtSliceHexUpper -> {X}
* std.fmt.fmtIntSizeDec -> {B}
* std.fmt.fmtIntSizeBin -> {Bi}
* std.fmt.fmtDuration -> {D}
* std.fmt.fmtDurationSigned -> {D}
* {} -> {f} when there is a format method
* format method signature
- anytype -> *std.io.Writer
- inferred error set -> error{WriteFailed}
- options -> (deleted)
* std.fmt.Formatted
- now takes context type explicitly
- no fmt string
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preparing to rearrange std.io namespace into an interface
how to upgrade:
std.io.getStdIn() -> std.fs.File.stdin()
std.io.getStdOut() -> std.fs.File.stdout()
std.io.getStdErr() -> std.fs.File.stderr()
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closes #5019
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XXH3 is the faster alternative to XXH64 which utilizes SIMD
when hashing large chunks of memory and similar mixing to
WyHash (64x64 -> 128 mul) for smaller inputs.
Co-authored-by: Reixcon226 <87927264+Rexicon226@users.noreply.github.com>
---------
Co-authored-by: kprotty <kbutcher6200@gmail.com>
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Improvements for xxHash performance, both on small keys as well as large slices.
* std.hash: make benchmarks consistent for xxhash
There is some odd behaviour in the timings for the XXHash benchmarks
introduced in 879f0b9, specifically the changes to the allocation in
benchmarkHash. The problem is somewhere in the difference between
9628243 and 9362d61 (these are commit that were force-pushed over but
can be found in PR #15917).
* std.hash: correctly calculate throughput in benchmark
* std.hash: add hashes per sec to small key output
* std.hash: add exact and small xxhash routines
* std.hash: add --small-only flag to benchmark
* std.hash.xxhash: extract stateless Accumulator type
* std.hash.xxhash: cleanup hash() and improve small key perf
* std.hash.xxhash: port xxhash64 changes to xxhash32
* std.hash: change benchmark --small-only flag to --include-array
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Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
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Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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See #3811
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These changes have been made to resolve issue #10037. The `Random`
interface was implemented in such a way that causes significant slowdown
when calling the `fill` function of the rng used.
The `Random` interface is no longer stored in a field of the rng, and is
instead returned by the child function `random()` of the rng. This
avoids the performance issues caused by the interface.
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closes #9388
closes #9321
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* sync function arguments name with other same functions
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We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
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This breaking change disambiguates between overriding the lib dir when
performing an installation with the Zig Build System, and overriding the
lib dir that the Zig installation itself uses.
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SipHash *is* a cryptographic function, with a 128-bit security level.
However, it is not a regular hash function: a secret key is required,
and knowledge of that key allows collisions to be quickly computed offline.
SipHash is therefore more suitable to be used as a MAC.
The same API as other MACs was implemented in addition to functions directly
returning an integer.
The benchmarks have been updated accordingly.
No changes to the SipHash implementation itself.
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add SPDX license identifier
copyright ownership is zig contributors
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Un-reverts PR #3118
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Used a series of regex searches to try to find as many instances of the old pattern as I could and update them.
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that's all this commit does. further commits will fix cli flags and
such.
see #2221
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