The hashable package
This package defines a class,
Hashable, for types that can be
converted to a hash value. This class exists for the benefit of
hashing-based data structures. The package provides instances for
basic types and a way to combine hash values.
Add instances for:
Hashedtype for caching the
Add instances for: Unique, Version, Fixed, NonEmpty, Min, Max, Arg, First, Last, WrappedMonoid, Option
Support GHC 8.0
Add support for GHC 7.10 typeRepFingerprint
Added support for random 1.1.*.
Silence integer literal overflow warning
Add support for GHC 7.10
Add instance for Data.Void
Make the SSE .cabal flags manual
Add an upper bound on bytestring
Add instances for
Use a 32-bit default salt on 32-bit archs.
Revert instances to their 1.1 implementations to regain the performance we had then.
Remove use of random salt altogether. Without using SipHash the benefit is unclear (i.e. collision attacks still work) and the complexity is no longer worth it.
Fix for GHC 7.0.
Stop using SipHash. The current implementation still has segfault causing bugs that we won't be able to fix soon.
Stop using Wang hash. It degrades performance of fixed-size integer hashing too much.
Fix linking issue when SSE was disabled.
Hash small signed Integers correctly.
Add flags to control usage of SSE.
Fix another segfault caused by SSE2 code.
More portability fixes.
Force stack alignment to 16 bytes everywhere. Fixes a segfault.
Fix bug where code relied on rewrite rules firing for correctness.
Update docs to match code.
Work around bug in GHCi runtime linker, which never call static initializers.
Make building of SSE 4.1 code conditional, as it doesn't work on all platforms.
Use a fixed salt, but allow random salting. Random salting by default broke people's code.
Work around ghci linker bug on Windows.
Fix performance bug in SSE implementation of SipHash.
Fix segfault due to incorrect stack alignment on Windows.
Switch string hashing from FNV-1 to SipHash, in an effort to prevent collision attacks.
Switch fixed-size integer hashing to Wang hash.
The default salt now switched on every program run, in an effort to prevent collision attacks.
Move hash method out of Hashable type class.
Add support for generic instance deriving.
Add instance for Ordering.
Bug fix for bytestring < 0.10.0.
Switch string hashing from Bernstein to FNV-1
Faster instance for Integer.
Update dependency on base, ghc-prim
Now works with GHC 7.6.
Add instance for TypeRep.
Update dependency on test-framework.
Bug fix for GHC 7.4
Update dependency on test-framework.
Improve documentation of combine.
Add instances for Interger, Ratio, Float, Double, and StableName.
Fix hash collision issues for lists and tuples when using a user-specified salt.
Improved instances for tuples and lists.
Add instances for StableName, Float, Double, Integer, and Ratio.
Add hashWithSalt, which allows the user to create different hash values for the same input by providing different seeds. This is useful for application like Cuckoo hashing which need a family of hash functions.
Fix a bug in the Hashable instance for Int64/Word64 on 32-bit platforms.
Improved resilience to leading zero in the input being hashed.
Add instance for: strict and lazy Texts, ThreadId
Add hashPtrWithSalt and hashByteArrayWithSalt.
Faster ByteArray# hashing.
Fix a signedness bug that affected ByteString.
Fix ByteString hashing to work correctly on both 32 and 64-bit platforms.
Fix bug in Hashable instance for lazy ByteStrings where differences in the internal structure of the ByteString could cause different hash values for ByteStrings that are equal according to ==.
Add two helpers for creating Hashable instances: hashPtr and hashByteArray.
- Separate Hashable class to its own package from hashmap 126.96.36.199.