gdb/testsuite/gdb.ada/scalar_storage/storage.adb

   1 --  Copyright 2019-2020 Free Software Foundation, Inc.
   2 --
   3 --  This program is free software; you can redistribute it and/or modify
   4 --  it under the terms of the GNU General Public License as published by
   5 --  the Free Software Foundation; either version 3 of the License, or
   6 --  (at your option) any later version.
   7 --
   8 --  This program is distributed in the hope that it will be useful,
   9 --  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 --  GNU General Public License for more details.
  12 --
  13 --  You should have received a copy of the GNU General Public License
  14 --  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 with Pck; use Pck;
  17 with System.Storage_Elements; use System.Storage_Elements;
  18
  19 procedure Storage is
  20    subtype Some_Range is Natural range 0..127;
  21
  22    type Rec is record
  23       Value : Some_Range;
  24    end record;
  25
  26    for Rec use record
  27       Value at 0 range 0..127;
  28    end record;
  29
  30    type Rec_LE is new Rec;
  31    for Rec_LE'Bit_Order use System.Low_Order_First;
  32    for Rec_LE'Scalar_Storage_Order use System.Low_Order_First;
  33
  34    type Rec_BE is new Rec;
  35    for Rec_BE'Bit_Order use System.High_Order_First;
  36    for Rec_BE'Scalar_Storage_Order use System.High_Order_First;
  37
  38    V_LE : Rec_LE;
  39    V_BE : Rec_BE;
  40
  41 begin
  42    V_LE.Value := 126;
  43    V_BE.Value := 126;
  44
  45    Do_Nothing (V_LE'Address);  --  START
  46    Do_Nothing (V_BE'Address);
  47 end Storage;