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that's all this commit does. further commits will fix cli flags and
such.
see #2221
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This removes the partial buffer handling from the full slice api.
`./benchmark --filter siphash --count 1024`
old
siphash(1,3)
iterative: 3388 MiB/s [67532e53a0d210bf]
small keys: 1258 MiB/s [948c91176a000000]
siphash(2,4)
iterative: 2061 MiB/s [f792d39bff42f819]
small keys: 902 MiB/s [e1ecba6614000000]
new
siphash(1,3)
iterative: 3410 MiB/s [67532e53a0d210bf]
small keys: 1639 MiB/s [948c91176a000000]
siphash(2,4)
iterative: 2053 MiB/s [f792d39bff42f819]
small keys: 1074 MiB/s [e1ecba6614000000]
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This gives moderate speed improvements when hashing small keys.
The crc/adler/fnv inlining did not provide enough speed up to warrant
the change.
OLD:
wyhash
small keys: 2277 MiB/s [c14617a1e3800000]
siphash(1,3)
small keys: 937 MiB/s [b2919222ed400000]
siphash(2,4)
small keys: 722 MiB/s [3c3d974cc2800000]
fnv1a
small keys: 1580 MiB/s [70155e1cb7000000]
adler32
small keys: 1898 MiB/s [00013883ef800000]
crc32-slicing-by-8
small keys: 2323 MiB/s [0035bf3dcac00000]
crc32-half-byte-lookup
small keys: 218 MiB/s [0035bf3dcac00000]
NEW:
wyhash
small keys: 2775 MiB/s [c14617a1e3800000]
siphash(1,3)
small keys: 1086 MiB/s [b2919222ed400000]
siphash(2,4)
small keys: 789 MiB/s [3c3d974cc2800000]
fnv1a
small keys: 1604 MiB/s [70155e1cb7000000]
adler32
small keys: 1856 MiB/s [00013883ef800000]
crc32-slicing-by-8
small keys: 2336 MiB/s [0035bf3dcac00000]
crc32-half-byte-lookup
small keys: 218 MiB/s [0035bf3dcac00000]
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old syntax: []i32{1, 2, 3}
new syntax: [_]i32{1, 2, 3}
closes #1797
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Previously, std.debug.assert would `@panic` in test builds,
if the assertion failed. Now, it's always `unreachable`.
This makes release mode test builds more accurately test
the actual code that will be run.
However this requires tests to call `std.testing.expect`
rather than `std.debug.assert` to make sure output is correct.
Here is the explanation of when to use either one, copied from
the assert doc comments:
Inside a test block, it is best to use the `std.testing` module
rather than assert, because assert may not detect a test failure
in ReleaseFast and ReleaseSafe mode. Outside of a test block, assert
is the correct function to use.
closes #1304
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* add `@bswap` builtin function. See #767
* comptime evaluation facilities are improved to be able to
handle a `@ptrCast` with a backing array.
* `@truncate` allows "truncating" a u0 value to any integer
type, and the result is always comptime known to be `0`.
* when specifying pointer alignment in a type expression,
the alignment value of pointers which do not have addresses
at runtime is ignored, and always has the default/ABI alignment
* threw in a fix to freebsd/x86_64.zig to update syntax from
language changes
* some improvements are pending #863
closes #638
closes #1733
std lib API changes
* io.InStream().readIntNe renamed to readIntNative
* io.InStream().readIntLe renamed to readIntLittle
* io.InStream().readIntBe renamed to readIntBig
* introduced io.InStream().readIntForeign
* io.InStream().readInt has parameter order changed
* io.InStream().readVarInt has parameter order changed
* io.InStream().writeIntNe renamed to writeIntNative
* introduced io.InStream().writeIntForeign
* io.InStream().writeIntLe renamed to writeIntLittle
* io.InStream().writeIntBe renamed to writeIntBig
* io.InStream().writeInt has parameter order changed
* mem.readInt has different parameters and semantics
* introduced mem.readIntNative
* introduced mem.readIntForeign
* mem.readIntBE renamed to mem.readIntBig and different API
* mem.readIntLE renamed to mem.readIntLittle and different API
* introduced mem.readIntSliceNative
* introduced mem.readIntSliceForeign
* introduced mem.readIntSliceLittle
* introduced mem.readIntSliceBig
* introduced mem.readIntSlice
* mem.writeInt has different parameters and semantics
* introduced mem.writeIntNative
* introduced mem.writeIntForeign
* mem.writeIntBE renamed to mem.readIntBig and different semantics
* mem.writeIntLE renamed to mem.readIntLittle and different semantics
* introduced mem.writeIntSliceForeign
* introduced mem.writeIntSliceNative
* introduced mem.writeIntSliceBig
* introduced mem.writeIntSliceLittle
* introduced mem.writeIntSlice
* removed mem.endianSwapIfLe
* removed mem.endianSwapIfBe
* removed mem.endianSwapIf
* added mem.littleToNative
* added mem.bigToNative
* added mem.toNative
* added mem.nativeTo
* added mem.nativeToLittle
* added mem.nativeToBig
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Reverted #1628 and changed the grammar+parser of the language to not allow certain expr where types are expected
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Changed container and initializer syntax
* <container> { ... } -> <container> . { ... }
* <exrp> { ... } -> <expr> . { ...}
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closes #1283
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* add `@intCast`
* add `@floatCast`
* add `@floatToInt`
* add `@intToFloat`
See #1061
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See #770
To help automatically translate code, see the
zig-fmt-pointer-reform-2 branch.
This will convert all & into *. Due to the syntax
ambiguity (which is why we are making this change),
even address-of & will turn into *, so you'll have
to manually fix thes instances. You will be guaranteed
to get compile errors for them - expected 'type', found 'foo'
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See #1003
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- SipHash64, SipHash128
- Crc32 (fast + small variants)
- Adler32
- Fnv1a (32, 64 and 128 bit variants)
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