Control/Monad/Trans/State.hs

    {-# LANGUAGE CPP #-}
    #if __GLASGOW_HASKELL__ >= 702
    {-# LANGUAGE Safe #-}
    #endif
    -----------------------------------------------------------------------------
    -- |
    -- Module      :  Control.Monad.Trans.State
    -- Copyright   :  (c) Andy Gill 2001,
    --                (c) Oregon Graduate Institute of Science and Technology, 2001
    -- License     :  BSD-style (see the file LICENSE)
    --
    -- Maintainer  :  R.Paterson@city.ac.uk
    -- Stability   :  experimental
    -- Portability :  portable
    --
    -- State monads, passing an updatable state through a computation.
    --
    -- Some computations may not require the full power of state transformers:
    --
    -- * For a read-only state, see "Control.Monad.Trans.Reader".
    --
    -- * To accumulate a value without using it on the way, see
    --   "Control.Monad.Trans.Writer".
    --
    -- This version is lazy; for a strict version, see
    -- "Control.Monad.Trans.State.Strict", which has the same interface.
    -----------------------------------------------------------------------------

    module Control.Monad.Trans.State (
      module Control.Monad.Trans.State.Lazy
      ) where

    import Control.Monad.Trans.State.Lazy