r_ptr.mod 267 B

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  1. MODULE RPtr;
  2. VAR ExitCode : INTEGER;
  3. p, q : POINTER TO INTEGER;
  4. BEGIN
  5. ExitCode := 0;
  6. p := NIL;
  7. q := p;
  8. IF p = NIL THEN ExitCode := ExitCode + 1 END;
  9. IF q = NIL THEN ExitCode := ExitCode + 10 END;
  10. IF p = q THEN ExitCode := ExitCode + 100 END
  11. END RPtr.