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/test/language/instruction/loop/test_loop_variant2.e

http://github.com/tybor/Liberty
Specman e | 68 lines | 40 code | 7 blank | 21 comment | 0 complexity | 7d2eb10af035971c92a5c8c864543432 MD5 | raw file
 1-- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries.
 2-- See the Copyright notice at the end of this file.
 3--
 4class TEST_LOOP_VARIANT2
 5
 6create {}
 7   make
 8
 9feature {ANY}
10   make
11      local
12         i: INTEGER
13      do
14         from
15            i := 0
16         invariant
17            do_loop_invariant(i)
18         variant
19            do_loop_variant(i)
20         until
21            i = 10
22         loop
23            i := i + 1
24         end
25         debug
26            check
27               invariant_counter = 11
28               variant_counter = 10
29            end
30         end
31      end
32
33feature {}
34   invariant_counter: INTEGER
35
36   variant_counter: INTEGER
37
38   do_loop_invariant (i: INTEGER): BOOLEAN
39      do
40         invariant_counter := invariant_counter + 1
41         Result := True
42      end
43
44   do_loop_variant (i: INTEGER): INTEGER
45      do
46         variant_counter := variant_counter + 1
47         Result := 50 - i
48      end
49
50end -- class TEST_LOOP_VARIANT2
51--
52-- ------------------------------------------------------------------------------------------------------------------------------
53-- Copyright notice below. Please read.
54--
55-- SmartEiffel is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License,
56-- as published by the Free Software Foundation; either version 2, or (at your option) any later version.
57-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty
58-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have
59-- received a copy of the GNU General Public License along with SmartEiffel; see the file COPYING. If not, write to the Free
60-- Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
61--
62-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.       - University of Nancy 1 - FRANCE
63-- Copyright(C) 2003-2006: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne - University of Nancy 2 - FRANCE
64--
65-- Authors: Dominique COLNET, Philippe RIBET, Cyril ADRIAN, Vincent CROIZIER, Frederic MERIZEN
66--
67-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
68-- ------------------------------------------------------------------------------------------------------------------------------