Safe Haskell | None |
---|---|
Language | Haskell98 |
Synopsis
- data T w a
- type KeyCount w a = (Key w, a)
- newtype Path w a = Path FilePath
- readFile :: Storable a => Path w a -> IO (T w a)
- writeFile :: Storable a => Path w a -> T w a -> IO ()
- fromList :: (C a, Storable a) => [KeyCount w a] -> T w a
- fromListStorable :: (C a, Storable a) => [KeyCount w a] -> T w a
- fromListExternal :: (C a, Storable a) => Int -> [KeyCount w a] -> IO (T w a)
- writeSorted :: (C a, Storable a) => Path w a -> [[KeyCount w a]] -> IO ()
- fromMap :: Storable a => Map (Key w) a -> T w a
- singleton :: Storable a => Key w -> a -> T w a
- size :: T w a -> Int
- toAscList :: Storable a => T w a -> [KeyCount w a]
- toMap :: Storable a => T w a -> Map (Key w) a
- mergeMany :: (C a, Storable a) => [T w a] -> T w a
- propMerge :: [KeyCount N10 Count64] -> [KeyCount N10 Count64] -> Bool
Documentation
Represents a Map Key Count
by a lazy ByteString containing the (key,count) pairs in ascending order.
readFile :: Storable a => Path w a -> IO (T w a) Source #
It silently drops IO exceptions and does not check whether the loaded data is valid.
fromListExternal :: (C a, Storable a) => Int -> [KeyCount w a] -> IO (T w a) Source #
Create a CountMap
from a large list of elements.
Neither the argument nor the result needs to fit in memory.
You only have to provide enough space on disk.
The result is lazily read from a temporary file.
That is, this file should neither be modified
nor deleted while processing the result.
Even more, fromListExternal
must not be called again
while processing the result.
You may better choose writeSorted
.