binary-strict-0.4.5: Binary deserialisation using strict ByteStrings Source code Contents Index

Data.Binary.Strict.BitUtil

Synopsis

topNBits :: Int -> Word8 bottomNBits :: Int -> Word8 leftShift :: Int -> ByteString -> ByteString rightShift :: Int -> ByteString -> ByteString leftTruncateBits :: Int -> ByteString -> ByteString rightTruncateBits :: Int -> ByteString -> ByteString

Documentation

topNBits :: Int -> Word8 Source

This is used for masking the last byte of a ByteString so that extra bits don't leak in

bottomNBits :: Int -> Word8 Source

Return a Word8 with the bottom n bits set

leftShift :: Int -> ByteString -> ByteString Source

Shift the whole ByteString some number of bits left where 0 <= n < 8

rightShift :: Int -> ByteString -> ByteString Source

Shift the whole ByteString some number of bits right where 0 <= n < 8

leftTruncateBits :: Int -> ByteString -> ByteString Source

Truncate a ByteString to a given number of bits (counting from the left) by masking out extra bits in the last byte

rightTruncateBits :: Int -> ByteString -> ByteString Source

Truncate a ByteString to a given number of bits (counting from the right) by masking out extra bits in the first byte

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