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1 // Copyright 2002 The Trustees of Indiana University.
3 // Use, modification and distribution is subject to the Boost Software
4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
7 // Boost.MultiArray Library
8 // Authors: Ronald Garcia
11 // See http://www.boost.org/libs/multi_array for documentation.
14 // range1.cpp - test of index_range
18 #include <boost/multi_array/index_range.hpp>
20 #include <boost/core/lightweight_test.hpp>
22 #include <boost/array.hpp>
28 typedef boost::detail::multi_array::index_range
<int,std::size_t> range
;
31 // typical range creation and extraction
33 BOOST_TEST(r1
.start() == -3);
34 BOOST_TEST(r1
.finish() == 5);
35 BOOST_TEST(r1
.stride() == 1);
36 BOOST_TEST(r1
.size(0) == 8);
37 BOOST_TEST(!r1
.is_degenerate());
38 BOOST_TEST(r1
.get_start(0) == -3);
39 BOOST_TEST(r1
.get_finish(100) == 5);
44 BOOST_TEST(r2
.start() == -3);
45 BOOST_TEST(r2
.finish() == 5);
46 BOOST_TEST(r2
.stride() == 2);
47 BOOST_TEST(r2
.size(0) == 4);
48 BOOST_TEST(!r2
.is_degenerate());
52 // degenerate creation
54 BOOST_TEST(r3
.start() == 5);
55 BOOST_TEST(r3
.finish() == 6);
56 BOOST_TEST(r3
.stride() == 1);
57 BOOST_TEST(r3
.size(0) == 1);
58 BOOST_TEST(r3
.is_degenerate());
62 // default range creation
64 BOOST_TEST(r4
.get_start(0) == 0);
65 BOOST_TEST(r4
.get_finish(100) == 100);
66 BOOST_TEST(r4
.stride() == 1);
67 BOOST_TEST(r4
.size(0) == 0);
71 // create a range using the setter methods
72 range r5
= range().stride(2).start(-3).finish(7);
73 BOOST_TEST(r5
.start() == -3);
74 BOOST_TEST(r5
.stride() == 2);
75 BOOST_TEST(r5
.finish() == 7);
76 BOOST_TEST(r5
.size(0) == 5);
79 // try out all the comparison operators
81 range r6
= -3 <= range().stride(2) < 7;
82 BOOST_TEST(r6
.start() == -3);
83 BOOST_TEST(r6
.stride() == 2);
84 BOOST_TEST(r6
.finish() == 7);
85 BOOST_TEST(r6
.size(0) == 5);
89 range r7
= -3 < range() <= 7;
90 BOOST_TEST(r7
.start() == -2);
91 BOOST_TEST(r7
.stride() == 1);
92 BOOST_TEST(r7
.finish() == 8);
93 BOOST_TEST(r7
.size(0) == 10);
96 // arithmetic operators
98 range r8
= range(0,5) + 2;
99 BOOST_TEST(r8
.start() == 2);
100 BOOST_TEST(r8
.stride() == 1);
101 BOOST_TEST(r8
.finish() == 7);
102 BOOST_TEST(r8
.size(0) == 5);
106 range r9
= range(0,5) - 2;
107 BOOST_TEST(r9
.start() == -2);
108 BOOST_TEST(r9
.stride() == 1);
109 BOOST_TEST(r9
.finish() == 3);
110 BOOST_TEST(r9
.size(0) == 5);
113 return boost::report_errors();