gcc/testsuite/gnat.dg/rep_clause4.adb

   1 -- { dg-do run }
   2
   3 procedure Rep_Clause4 is
   4
   5   type U32 is mod 2 ** 32;
   6
   7   type Key is record
   8     Value : U32;
   9     Valid : Boolean;
  10   end record;
  11
  12   type Key_Buffer is record
  13     Current, Latch : Key;
  14   end record;
  15
  16   type Block is record
  17     Keys  : Key_Buffer;
  18     Stamp : U32;
  19   end record;
  20   for Block use record
  21     Keys  at  0 range 0 .. 103;
  22     Stamp at 13 range 0 .. 31;
  23   end record;
  24
  25   My_Block : Block;
  26   My_Stamp : constant := 16#01234567#;
  27
  28 begin
  29   My_Block.Stamp := My_Stamp;
  30   My_Block.Keys.Latch := My_Block.Keys.Current;
  31   if My_Block.Stamp /= My_Stamp then
  32     raise Program_Error;
  33   end if;
  34 end;