This module provides FFI imports to the C reference library at https://github.com/Cyan4973/xxHash.

This binding keeps the intermediate state for stream processing in an MutableByteArray# on the managed GHC heap. All foreign imports use unsafe call semantics. Therefore, it is possible to use either unpinned or pinned MutableByteArray# since GHC's garbage collector doesn't move the either kind during an unsafe foreign call. However GHCi <8.4 may replace unsafe foreign calls with safe foreign calls in the bytecode interpreter. Consequently, unpinned 'MutableByteArray#s' may be moved by the garbage collector during foreign calls which obviously breaks this code. So extra care should be taken when loading this code into the bytecode interpreter.