32 lines
529 B
Ada
32 lines
529 B
Ada
-- { dg-do run }
|
|
|
|
procedure Pack12 is
|
|
|
|
type U16 is mod 2 ** 16;
|
|
|
|
type Key is record
|
|
Value : U16;
|
|
Valid : Boolean;
|
|
end record;
|
|
|
|
type Key_Buffer is record
|
|
Current, Latch : Key;
|
|
end record;
|
|
|
|
type Block is record
|
|
Keys : Key_Buffer;
|
|
Stamp : U16;
|
|
end record;
|
|
pragma Pack (Block);
|
|
|
|
My_Block : Block;
|
|
My_Stamp : constant := 16#1234#;
|
|
|
|
begin
|
|
My_Block.Stamp := My_Stamp;
|
|
My_Block.Keys.Latch := My_Block.Keys.Current;
|
|
if My_Block.Stamp /= My_Stamp then
|
|
raise Program_Error;
|
|
end if;
|
|
end;
|