/test/lib/numeric/number/test_number11.e

 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_NUMBER11
 5   -- some strange examples of calculations between numbers
 6   -- large_positive_integer & large_negative_integer
 7
 8insert
 9   EIFFELTEST_TOOLS
10   PLATFORM
11   NUMBER_TOOLS
12
13create {}
14   make
15
16feature {ANY}
17   make
18      local
19         n1, n2: NUMBER
20      do
21         -- large_positive_integer
22         n1 := from_integer(Maximum_integer)
23         n2 := n1 @+ 1000
24         assert((n1 @+ 1).is_equal(n1 @+ 3 @- 2))
25         assert((n1 @+ 2).is_equal(n1 @+ 3 @- 1))
26         assert((n1 @+ 100).is_equal(n1 @+ 200 @- 100))
27         assert((n1 + n2).is_equal(n1 @* 2 @+ 1000))
28         -- large_negative_integer
29         n1 := from_integer(Minimum_integer)
30         n2 := n1 @- 1000
31         assert((n1 @- 1).is_equal(n1 @- 3 @+ 2))
32         assert((n1 @- 2).is_equal(n1 @- 3 @+ 1))
33         assert((n1 @- 100).is_equal(n1 @- 200 @+ 100))
34         assert((n1 + n2).is_equal(n1 @* 2 @- 1000))
35      end
36
37
38
39end -- class TEST_NUMBER11
40--
41-- ------------------------------------------------------------------------------------------------------------------------------
42-- Copyright notice below. Please read.
43--
44-- SmartEiffel is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License,
45-- as published by the Free Software Foundation; either version 2, or (at your option) any later version.
46-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty
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49-- Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
50--
51-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.       - University of Nancy 1 - FRANCE
52-- Copyright(C) 2003-2006: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne - University of Nancy 2 - FRANCE
53--
54-- Authors: Dominique COLNET, Philippe RIBET, Cyril ADRIAN, Vincent CROIZIER, Frederic MERIZEN
55--
56-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
57-- ------------------------------------------------------------------------------------------------------------------------------