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listlessmore about listless


  3  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Listless  \List"less\,  a.  [OE.  listles,  lustles.  See  {Lust}.] 
  Having  no  desire  or  inclination;  indifferent;  heedless; 
  spiritless.  ``  A  listless  unconcern.''  --Thomson. 
  Benumbed  with  cold,  and  listless  of  their  gain. 
  I  was  listless,  and  desponding.  --Swift. 
  Syn:  Heedless;  careless;  indifferent;  vacant;  uninterested; 
  languid;  spiritless;  supine;  indolent.  -- 
  {List"less*ly},  adv  --  {List"less*ness},  n. 
  From  WordNet  r  1.6  [wn]: 
  adj  1:  lacking  zest  or  vivacity;  "he  was  listless  and  bored" 
  2:  marked  by  low  spirits;  showing  no  enthusiasm;  "a  dispirited 
  and  divided  Party";  "reacted  to  the  crisis  with  listless 
  resignation"  [syn:  {dispirited}] 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
    In  {functional  programming},  a  property  of  a 
  {function}  which  allows  it  to  be  combined  with  other  functions 
  in  a  way  that  eliminates  intermediate  data  structures, 
  especially  lists. 
  {Phil  Wadler}'s  thesis  gives  the  conditions  for  a  function  to 
  be  in  listless  form:  each  input  list  is  traversed  only  once, 
  one  element  at  a  time,  from  left  to  right  Each  output  list 
  is  generated  once,  one  element  at  a  time,  from  left  to  right 
  No  other  lists  are  generated  or  traversed. 
  Not  all  functions  can  be  expressed  in  listless  form 
  (e.g.  reverse). 

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