gdb/testsuite/gdb.ada/sub_variant/subv.adb

   1 --  Copyright 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 procedure Subv is
  17   type Indicator_T is (First, Last);
  18
  19   type T1 (Indicator : Indicator_T := First) is
  20     record
  21       case Indicator is
  22         when First =>
  23           Value : Natural;
  24         when Last =>
  25           null;
  26       end case;
  27     end record;
  28
  29   type T2 (Indicator : Indicator_T := First) is
  30     record
  31       Associated : T1;
  32       case Indicator is
  33         when First =>
  34           Value : Natural;
  35         when Last =>
  36           null;
  37       end case;
  38     end record;
  39
  40   Q : T2  := ( First, (First, 42), 51 );
  41   R : T2  := ( First, (Indicator => Last), 51 );
  42   S : T2  := ( Last, (First, 42));
  43 begin
  44   null;  -- STOP
  45 end;