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Within LTS Haskell 24.63 (ghc-9.10.3)

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1. genByteString :: RandomGen g => Int -> g -> (ByteString, g)

   random	System.Random

   Generates a ByteString of the specified size using a pure pseudo-random number generator. See uniformByteStringM for the monadic version.

   Examples

   >>> import System.Random
   
   >>> import Data.ByteString
   
   >>> let pureGen = mkStdGen 137
   
   >>> unpack . fst . genByteString 10 $ pureGen
   [51,123,251,37,49,167,90,109,1,4]
   

2. genShortByteString :: RandomGen g => Int -> g -> (ShortByteString, g)

   random	System.Random

   genShortByteString n g returns a ShortByteString of length n filled with pseudo-random bytes.

3. genShortByteStringIO :: MonadIO m => Int -> m Word64 -> m ShortByteString

   random	System.Random.Stateful

   Efficiently generates a sequence of pseudo-random bytes in a platform independent manner.

4. genShortByteStringST :: Int -> ST s Word64 -> ST s ShortByteString

   random	System.Random.Stateful

   Same as genShortByteStringIO, but runs in ST.

5. uniformByteStringM :: StatefulGen g m => Int -> g -> m ByteString

   random	System.Random.Stateful

   Generates a pseudo-random ByteString of the specified size.

6. uniformShortByteString :: StatefulGen g m => Int -> g -> m ShortByteString

   random	System.Random.Stateful

   uniformShortByteString n g generates a ShortByteString of length n filled with pseudo-random bytes.

7. fromByteString :: ByteString -> Builder

   binary	Data.Binary.Builder

   O(1). A Builder taking a ByteString, satisfying

   • toLazyByteString (fromByteString bs) =
     fromChunks [bs]

8. fromLazyByteString :: ByteString -> Builder

   binary	Data.Binary.Builder

   O(1). A Builder taking a lazy ByteString, satisfying

   • toLazyByteString (fromLazyByteString bs) =
     bs

9. fromShortByteString :: ShortByteString -> Builder

   binary	Data.Binary.Builder

   O(n). A builder taking ShortByteString and copy it to a Builder, satisfying

   • @toLazyByteString (fromShortByteString bs) = fromChunks [fromShort bs]

10. toLazyByteString :: Builder -> LazyByteString

    binary	Data.Binary.Builder

    Execute a Builder and return the generated chunks as a LazyByteString. The work is performed lazy, i.e., only when a chunk of the LazyByteString is forced.

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