/test/lib/numeric/number/test_number105.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_NUMBER105
 5   --
 6   -- Test of depassement of INTEGER_64_NUMBER capacity
 7   -- during a multiplication between a INTEGER_64_NUMBER
 8   -- and an integer which is symbolised by a large integer
 9   -- Result is an integer which is symbolized by a
10   -- BIG_INTEGER_NUMBER
11   --
12
13insert
14   EIFFELTEST_TOOLS
15   ANY
16   PLATFORM
17
18create {}
19   make
20
21feature {ANY}
22   make
23      local
24         n1, n2, m1, m2: NUMBER
25      do
26         n1 := nt.from_integer_64(Maximum_integer_64) @+ 1
27         assert(n1.is_integer_general_number)
28         assert(not n1.is_integer_64)
29         n2 := nt.from_integer_64(2)
30         m1 := n1 * n2
31         m2 := n2 * n1
32         assert(m1.is_integer_general_number)
33         assert(not m1.is_integer_64)
34         assert(m1.is_positive)
35         assert(m2.is_equal(m1))
36         n2 := nt.from_integer_64(-2)
37         m1 := n1 * n2
38         m2 := n2 * n1
39         assert(m1.is_integer_general_number)
40         assert(not m1.is_integer_64)
41         assert(not m1.is_positive)
42         assert(m2.is_equal(m1))
43         n1 := nt.from_integer_64(Minimum_integer_64) @- 1
44         assert(n1.is_integer_general_number)
45         assert(not n1.is_integer_64)
46         n2 := nt.from_integer_64(2)
47         m1 := n1 * n2
48         m2 := n2 * n1
49         assert(m1.is_integer_general_number)
50         assert(not m1.is_integer_64)
51         assert(not m1.is_positive)
52         assert(m2.is_equal(m1))
53         n2 := nt.from_integer_64(-2)
54         m1 := n1 * n2
55         m2 := n2 * n1
56         assert(m1.is_integer_general_number)
57         assert(not m1.is_integer_64)
58         assert(m1.is_positive)
59         assert(m2.is_equal(m1))
60      end
61
62
63
64   nt: NUMBER_TOOLS
65
66end -- class TEST_NUMBER105
67--
68-- ------------------------------------------------------------------------------------------------------------------------------
69-- Copyright notice below. Please read.
70--
71-- SmartEiffel is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License,
72-- as published by the Free Software Foundation; either version 2, or (at your option) any later version.
73-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty
74-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have
75-- received a copy of the GNU General Public License along with SmartEiffel; see the file COPYING. If not, write to the Free
76-- Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
77--
78-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.       - University of Nancy 1 - FRANCE
79-- Copyright(C) 2003-2006: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne - University of Nancy 2 - FRANCE
80--
81-- Authors: Dominique COLNET, Philippe RIBET, Cyril ADRIAN, Vincent CROIZIER, Frederic MERIZEN
82--
83-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
84-- ------------------------------------------------------------------------------------------------------------------------------