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- (* Chapter 5 - Programming exercise 2 *)
- program Try_Recursion;
-
- var Count : integer;
-
- procedure Print_And_Decrement(Index : integer);
- begin
- Writeln('The value of the index is ',Index:3);
- Index := Index - 1;
- if Index > 0 then
- Print_And_Decrement(Index);
- Writeln('The value of the index is now ',Index:3);
- end;
-
- begin (* main program *)
- Count := 7;
- Print_And_Decrement(Count);
- end. (* main program *)
-
-
-
-
- { Result of execution
-
- The value of the index is 7
- The value of the index is 6
- The value of the index is 5
- The value of the index is 4
- The value of the index is 3
- The value of the index is 2
- The value of the index is 1
- The value of the index in now 0
- The value of the index in now 1
- The value of the index in now 2
- The value of the index in now 3
- The value of the index in now 4
- The value of the index in now 5
- The value of the index in now 6
-
- }