content: {-# LANGUAGE CPP #-}
  
  -----------------------------------------------------------------------------
  -- |
  -- Module      :  Data.Array.MArray
  -- Copyright   :  (c) The University of Glasgow 2001
  -- License     :  BSD-style (see the file libraries/base/LICENSE)
  --
  -- Maintainer  :  libraries@haskell.org
  -- Stability   :  experimental
  -- Portability :  non-portable (uses Data.Array.Base)
  --
  -- An overloaded interface to mutable arrays.  For array types which can be
  -- used with this interface, see "Data.Array.IO", "Data.Array.ST",
  -- and "Data.Array.Storable".
  --
  -----------------------------------------------------------------------------
  
  module Data.Array.MArray (
      -- * Class of mutable array types
      MArray,       -- :: (* -> * -> *) -> * -> (* -> *) -> class
  
      -- * The @Ix@ class and operations
      module Data.Ix,
  
      -- * Constructing mutable arrays
      newArray,     -- :: (MArray a e m, Ix i) => (i,i) -> e -> m (a i e)
      newArray_,    -- :: (MArray a e m, Ix i) => (i,i) -> m (a i e)
      newListArray, -- :: (MArray a e m, Ix i) => (i,i) -> [e] -> m (a i e)
  
      -- * Reading and writing mutable arrays
      readArray,    -- :: (MArray a e m, Ix i) => a i e -> i -> m e
      writeArray,   -- :: (MArray a e m, Ix i) => a i e -> i -> e -> m ()
  
      -- * Derived arrays
      mapArray,     -- :: (MArray a e' m, MArray a e m, Ix i) => (e' -> e) -> a i e' -> m (a i e)
      mapIndices,   -- :: (MArray a e m, Ix i, Ix j) => (i,i) -> (i -> j) -> a j e -> m (a i e)
  
      -- * Deconstructing mutable arrays
      getBounds,    -- :: (MArray a e m, Ix i) => a i e -> m (i,i)
      getElems,     -- :: (MArray a e m, Ix i) => a i e -> m [e]
      getAssocs,    -- :: (MArray a e m, Ix i) => a i e -> m [(i, e)]
  
      -- * Conversions between mutable and immutable arrays
      freeze,       -- :: (Ix i, MArray a e m, IArray b e) => a i e -> m (b i e)
      thaw,         -- :: (Ix i, IArray a e, MArray b e m) => a i e -> m (b i e)
    ) where
  
  import Data.Ix
  import Data.Array.Base
  #ifdef __HADDOCK__
  import Data.Array.IArray
  #endif
  