1-- { dg-do run }
2
3with Ada.Unchecked_Conversion;
4with Ada.Streams; use Ada.Streams;
5with Ada.Text_IO; use Ada.Text_IO;
6
7procedure Unchecked_Convert2 is
8
9   subtype Day_Number is Integer range 0 .. 31;
10
11   subtype Byte_Array_Of_Integer is Stream_Element_Array
12     (1 .. Integer'Size / Stream_Element_Array'Component_Size);
13
14   function To_Byte_Array is
15      new Ada.Unchecked_Conversion (Integer, Byte_Array_Of_Integer);
16
17   Day_Now : Day_Number;
18   Pragma Volatile (Day_Now);
19
20   Arr : Stream_Element_Array (1 .. 12) := (others => 16#ff#);
21
22   procedure Test (Arr : Stream_Element_Array) is
23   begin
24      if Arr(5) /= 0 or Arr(6) /= 0 or Arr(7) /= 0 or Arr(8) /= 0 then
25         raise Program_Error;
26      end if;
27   end;
28
29begin
30   Day_Now := 0;
31   Arr (5 .. 8) := To_Byte_Array (Day_Now);
32   Test (Arr);
33   Arr (1) := 16#ff#;
34end Unchecked_Convert2;
35