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evaluator

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evaluator


  2  definitions  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  evaluator 
  n  :  an  authority  who  is  able  to  estimate  worth  or  quality  [syn: 
  {judge}] 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  evaluator 
 
    Geoff  Burn  defines  evaluators  E0,  E1,  E2  and  E3  which 
  when  applied  to  an  expression,  reduce  it  to  varying  degrees. 
  E0  does  no  evaluation,  E1  it  evaluates  to  {weak  head  normal 
  form}  (WHNF),  E2  evaluates  the  structure  of  a  list,  i.e.  it 
  evaluates  it  either  to  NIL  or  evaluates  it  to  a  CONS  and  then 
  applies  E2  to  the  second  argument  of  the  CONS.  E3  evaluates 
  the  structure  of  a  list  and  evaluates  each  element  of  the  list 
  to  {WHNF}.  This  concept  can  be  extended  to  data  structures 
  other  than  lists  and  forms  the  basis  of  the  {evaluation 
  transformer}  style  of  {strictness  analysis}. 
 
  (1994-12-12) 
 
 




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