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{-# LANGUAGE Trustworthy #-}
-----------------------------------------------------------------------------
-- |
-- Module : Control.Monad.ST
-- 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 (requires universal quantification for runST)
--
-- This library provides support for /strict/ state threads, as
-- described in the PLDI \'94 paper by John Launchbury and Simon Peyton
-- Jones /Lazy Functional State Threads/.
--
-- References (variables) that can be used within the @ST@ monad are
-- provided by "Data.STRef", and arrays are provided by
-- [Data.Array.ST](https://hackage.haskell.org/package/array/docs/Data-Array-ST.html).
-----------------------------------------------------------------------------
module Control.Monad.ST (
-- * The 'ST' Monad
ST, -- abstract, instance of Functor, Monad, Typeable.
runST,
fixST,
-- * Converting 'ST' to 'IO'
RealWorld, -- abstract
stToIO,
) where
import Control.Monad.ST.Imp
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