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- -- Chapter 5 - Program 1
- with Text_IO;
- use Text_IO;
-
- procedure LoopDemo is
-
- package Int_IO is new Text_IO.Integer_IO(INTEGER);
- use Int_IO;
-
- Index, Count : INTEGER;
-
- begin
- Index := 1;
- loop -- This is the simplest loop
- Put("Index =");
- Put(Index); New_Line;
- Index := Index + 1;
- exit when Index = 5;
- end loop;
-
- Index := 1;
- loop -- Another simplest loop
- Put("Index =");
- Put(Index); New_Line;
- Index := Index + 1;
- if Index = 5 then exit; end if;
- end loop;
-
- Count := 1;
- while Count < 5 loop -- This is the while loop
- Put("Count =");
- Put(Count); New_Line;
- Count := Count + 1;
- end loop;
-
- for Index in 1..4 loop -- This is the for loop
- Put("Doubled index =");
- Put(2 * Index); New_Line;
- end loop;
-
- for Count in reverse 5..8 loop -- This is the reverse for loop
- Put("Triple count =");
- Put(3 * Count); New_Line;
- end loop;
-
- for Index in 7..11 loop -- An empty loop
- null;
- end loop;
-
- end LoopDemo;
-
-
-
-
- -- Result of execution
-
- -- Index = 1
- -- Index = 2
- -- Index = 3
- -- Index = 4
- -- Index = 1
- -- Index = 2
- -- Index = 3
- -- Index = 4
- -- Count = 1
- -- Count = 2
- -- Count = 3
- -- Count = 4
- -- Doubled index = 2
- -- Doubled index = 4
- -- Doubled index = 6
- -- Doubled index = 8
- -- Triple count = 24
- -- Triple count = 21
- -- Triple count = 18
- -- Triple count = 15
-
-