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subtype

subtype


  1  definition  found 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  subtype 
 
    If  S  is  a  subtype  of  T  then  an  expression  of 
  {type}  S  may  be  used  anywhere  that  one  of  type  T  can  and  an 
  {implicit  type  conversion}  will  be  applied  to  convert  it  to 
  type  T. 
 
  In  {object  oriented  programming},  this  means  that  {objects}  of 
  type  S  must  accept  every  {message}  that  one  of  type  T  would 
 
  (1997-07-28)