Data.FilePlow.Ordered

Documentation

data SeekTarget b

place the file handling to a specific SeekTarget provided a function that extracts a value/entry at a specific position

Constructors

StLargerThan !b

put the handle to the first entry that is larger than the provided value. Useful for files with entries in ASCending order

StSmallerThan !b

put the handle to the first entry that is smaller than the provided value. Useful for files with entries in DESCending order

Instances

Eq b => Eq (SeekTarget b)

Methods

(==) :: SeekTarget b -> SeekTarget b -> Bool

(/=) :: SeekTarget b -> SeekTarget b -> Bool

Show b => Show (SeekTarget b)

Methods

showsPrec :: Int -> SeekTarget b -> ShowS

show :: SeekTarget b -> String

showList :: [SeekTarget b] -> ShowS

seekTo :: (Ord b, Eq b, PlowHandle hdl) => hdl -> SeekTarget b -> (hdl -> IO b) -> IO Bool