gcc/testsuite/gnat.dg/slice3.adb

   1 -- { dg-do run }
   2
   3 procedure Slice3 is
   4
   5    type Varray is array (1 .. 1) of Natural;  -- SImode
   6
   7    type Sample is record
   8       Maybe  : Boolean;
   9       Values : Varray;
  10    end record;
  11    pragma Pack (Sample);
  12
  13    function Match (X, Y: Sample; Length : Positive) return Boolean is
  14    begin
  15       return X.Values (1 .. Length) = Y.Values (1 .. Length);
  16    end;
  17
  18    X, Y : Sample := (Maybe => True, Values => (1 => 1));
  19 begin
  20    X.Maybe := False;
  21    if not Match (X, Y, 1) then
  22       raise Program_Error;
  23    end if;
  24 end;