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  VAR
      CheckEOF : Boolean;    { state of CTRL+Z checking on input }
 
  Unit:     Crt
 
  Context:  Eof, Read, Readln, Reset
 
  Description
 
    When CheckEOF is set to True, a CTRL+Z input at the keyboard ends
    input. If multiple numbers are being read in when CTRL+Z is
    pressed, variables that have not received input are set to 0. After
    CTRL+Z is entered, the Eof function returns True. It does so until
    the file is Reset.
 
    When CheckEOF is False, an input of CTRL+Z is interpreted as the
    character ASCII 26.
 
    Default setting is False.