1-- Copyright 2006-2020 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 16with Pck; use Pck; 17 18procedure Watch is 19 20 procedure Foo (X : in out Integer) is 21 begin 22 -- Reference X in a way that does not change its value. 23 Do_Nothing (X'Address); -- BREAK1 24 end Foo; 25 26 X : Integer := 1; 27 28begin 29 Foo (X); 30 X := 2; -- BREAK2 31end Watch; 32 33