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-- Copyright 2019-2021 Free Software Foundation, Inc.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
with System;
with Pck; use Pck;
procedure Foo is
type Key is (Alpha, Omega);
type Inner(Disc : Key := Omega) is record
case Disc is
when Alpha =>
Small : Integer range 0..255;
when others =>
Large : Integer range 255..510;
end case;
end record;
pragma Unchecked_Union (Inner);
type Outer(Disc : Key := Alpha) is record
case Disc is
when Alpha =>
Field_One : Integer range 0..255;
when others =>
Field_Two : Integer range 255..510;
end case;
end record;
pragma Unchecked_Union (Outer);
type Pair is record
Pone : Inner;
Ptwo : Outer;
end record;
Value : Pair;
begin
Do_Nothing (Value'Address); -- BREAK
end Foo;