Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
RIO.ByteString.Lazy.Partial
Description
Lazy ByteString
partial functions. Import as:
import qualified RIO.ByteString.Lazy.Partial as BL'
Synopsis
- head :: HasCallStack => ByteString -> Word8
- last :: HasCallStack => ByteString -> Word8
- tail :: HasCallStack => ByteString -> ByteString
- init :: HasCallStack => ByteString -> ByteString
- foldl1 :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8
- foldl1' :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8
- foldr1 :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8
- maximum :: HasCallStack => ByteString -> Word8
- minimum :: HasCallStack => ByteString -> Word8
Basic interface
head :: HasCallStack => ByteString -> Word8 #
O(1) Extract the first element of a ByteString, which must be non-empty.
This is a partial function, consider using uncons
instead.
last :: HasCallStack => ByteString -> Word8 #
O(n/c) Extract the last element of a ByteString, which must be finite and non-empty.
This is a partial function, consider using unsnoc
instead.
tail :: HasCallStack => ByteString -> ByteString #
O(1) Extract the elements after the head of a ByteString, which must be non-empty.
This is a partial function, consider using uncons
instead.
init :: HasCallStack => ByteString -> ByteString #
O(n/c) Returns all the elements of a ByteString
except the last one.
This is a partial function, consider using unsnoc
instead.
Reducing ByteString
s (folds)
foldl1 :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8 #
foldl1
is a variant of foldl
that has no starting value
argument, and thus must be applied to non-empty ByteString
s.
foldl1' :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8 #
foldr1 :: HasCallStack => (Word8 -> Word8 -> Word8) -> ByteString -> Word8 #
foldr1
is a variant of foldr
that has no starting value argument,
and thus must be applied to non-empty ByteString
s
Special folds
maximum :: HasCallStack => ByteString -> Word8 #
O(n) maximum
returns the maximum value from a ByteString
minimum :: HasCallStack => ByteString -> Word8 #
O(n) minimum
returns the minimum value from a ByteString