Re: [Haskell-cafe] How to Create Data Type of memory

On Sun, Sep 6, 2009 at 11:45 PM, Akshay Dave wrote:

Hi,    Thanks for your prompt reply. Actually I am trying to convert the following transitive semantics to Haskell:

(Memory maps I to Z) lookup m i = <current value of i>  ( meaning lookup for I in memory m)

evB b m = true/(while b do c od;m) -> (c; while b do c od;m)

I have written the boolean expression and statement part but I am not able to write the memory representation in Haskell.

Ah, if you're trying to implement a semantics (emphasis on understandability and correctness), I suggest Data.Map. import qualified Data.Map as Map Map.lookup 2 (Map.insert 1 "x" (Map.insert 2 "y" Map.empty)) -- "y" Luke