Yurttas/PL/IL/Ada-95/F/02/03/00/error handling 00.adb

 1--
 2-- Copyright (C) 1998
 3-- All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4--
 5-- Permission to use, copy, modify, and distribute this 
 6-- software and its documentation for EDUCATIONAL purposes
 7-- and without fee is hereby granted provided that this 
 8-- copyright notice appears in all copies. 
 9-- 
10-- 
11 
12-- date   : January 1, 1998.
13-- author : Salih Yurttas.
14
15-- purpose : Error handling by exceptions.
16
17-- error_handling_00.adb
18
19
20with Text_IO; use Text_IO;
21 
22procedure Error_Handling_00 is
23
24  package Int_IO is new Integer_IO(Integer); use Int_IO;
25 
26  N : Integer := 4;
27
28  D : Integer := 256;
29
30  Value : Integer;
31 
32begin
33 
34  for I in 1..N
35  loop
36
37    loop
38
39      begin
40        New_line;
41
42        Put("--> Value : ");
43        Get(Value);
44
45        D := D/Value;
46        Put(D);
47
48        New_line;
49
50        exit;
51      exception
52        when CONSTRAINT_ERROR => New_Line;
53                                 Put_Line("Try Again...");
54      end;
55
56    end loop;
57
58  end loop;
59 
60end Error_Handling_00;