Metadata revisions for bitvec-1.0.0.1

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No. Time User SHA256
-r2 (bitvec-1.0.0.1-r2) 2022-06-19T20:42:34Z Bodigrim d0ff359caae444dc3dc0caf7ac2235b81ebec11a9a73a8bcac8ca089aa20a88f
  • Changed the library component's library dependency on 'vector' from

    >=0.11
    to
    >=0.11 && <0.13

-r1 (bitvec-1.0.0.1-r1) 2019-08-10T22:07:39Z Bodigrim 04ba2e92d4a6a4c1752047681bcdd8acb101fec7d80e8cde9d83506122611061
  • Changed description from

    A newtype over 'Bool' with a better 'Vector' instance.
    
    The [vector](https://hackage.haskell.org/package/vector)
    package represents unboxed arrays of 'Bool'
    This library provides a newtype wrapper 'Bit' and a custom instance
    of unboxed 'Vector', which packs bits densely,
    achieving __8x less memory footprint.__
    The performance stays mostly the same;
    the most significant degradation happens for random writes
    (up to 10% slower).
    On the other hand, for certain bulk bit operations
    'Vector Bit' is up to 64x faster than 'Vector Bool'.
    
    === Thread safety
    
    * "Data.Bit" is faster, but writes and flips are thread-unsafe.
    This is because naive updates are not atomic:
    read the whole word from memory,
    then modify a bit, then write the whole word back.
    * "Data.Bit.ThreadSafe" is slower (up to 20%),
    but writes and flips are thread-safe.
    
    === Similar packages
    
    * [bv](https://hackage.haskell.org/package/bv) and
    [bv-little](https://hackage.haskell.org/package/bv-little)
    do not offer mutable vectors.
    
    * [array](https://hackage.haskell.org/package/array)
    is memory-efficient for 'Bool', but lacks
    a handy 'Vector' interface and is not thread-safe.
    to
    A newtype over 'Bool' with a better 'Vector' instance.
    
    The <https://hackage.haskell.org/package/vector vector>
    package represents unboxed arrays of 'Bool'
    This library provides a newtype wrapper 'Bit' and a custom instance
    of unboxed 'Vector', which packs bits densely,
    achieving __8x less memory footprint.__
    The performance stays mostly the same;
    the most significant degradation happens for random writes
    (up to 10% slower).
    On the other hand, for certain bulk bit operations
    'Vector' 'Bit' is up to 64x faster than 'Vector' 'Bool'.
    
    === Thread safety
    
    * "Data.Bit" is faster, but writes and flips are thread-unsafe.
    This is because naive updates are not atomic:
    read the whole word from memory,
    then modify a bit, then write the whole word back.
    * "Data.Bit.ThreadSafe" is slower (up to 20%),
    but writes and flips are thread-safe.
    
    === Similar packages
    
    * <https://hackage.haskell.org/package/bv bv> and
    <https://hackage.haskell.org/package/bv-little bv-little>
    do not offer mutable vectors.
    
    * <https://hackage.haskell.org/package/array array>
    is memory-efficient for 'Bool', but lacks
    a handy 'Vector' interface and is not thread-safe.

-r0 (bitvec-1.0.0.1-r0) 2019-08-10T19:29:07Z Bodigrim b68ce9a91c32bcb142f6d88afb8a1c320f131f7be122f33ed71ba023525bf286