28 lines
733 B
Haskell
28 lines
733 B
Haskell
-- |
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-- Module : Data.Memory.Internal.DeepSeq
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-- License : BSD-style
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-- Maintainer : Vincent Hanquez <vincent@snarc.org>
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-- Stability : experimental
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-- Portability : unknown
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--
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-- Simple abstraction module to allow compilation without deepseq
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-- by defining our own NFData class if not compiling with deepseq
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-- support.
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--
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{-# LANGUAGE CPP #-}
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module Data.Memory.Internal.DeepSeq
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( NFData(..)
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) where
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#ifdef WITH_DEEPSEQ_SUPPORT
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import Control.DeepSeq
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#else
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import Data.Word
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class NFData a where rnf :: a -> ()
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instance NFData Word8 where rnf w = w `seq` ()
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instance NFData Word16 where rnf w = w `seq` ()
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instance NFData Word32 where rnf w = w `seq` ()
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instance NFData Word64 where rnf w = w `seq` ()
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#endif
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