gcc/testsuite/gnat.dg/alignment9.adb

   1 -- { dg-do run }
   2 -- { dg-options "-gnatws" }
   3
   4 procedure Alignment9 is
   5
   6   type Kind is (Small, Large);
   7   for Kind'Size use 8;
   8
   9   type Header is
  10     record
  11       K : Kind;
  12       I : Integer;
  13     end record;
  14
  15   for Header use
  16     record
  17       K at 4 range 0..7;
  18       I at 0 range 0..31;
  19     end record;
  20
  21   for Header'Size use 5*8;
  22   for Header'Alignment use 1;
  23
  24   H : Header;
  25
  26 begin
  27   if H'Size /= 40 then
  28     raise Program_Error;
  29   end if;
  30 end;