1// Copyright 2002 The Trustees of Indiana University.
2
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)
6
7// Boost.MultiArray Library
8// Authors: Ronald Garcia
9// Jeremy Siek
10// Andrew Lumsdaine
11// See http://www.boost.org/libs/multi_array for documentation.
12
13//
14// idxset1.cpp - testing the code for index_gen
15//
16
17#include <boost/multi_array/index_gen.hpp>
18#include <boost/multi_array/index_range.hpp>
19#include <boost/multi_array/types.hpp>
20#include <boost/core/lightweight_test.hpp>
21
22#include <boost/array.hpp>
23
24typedef boost::detail::multi_array::index index_type;
25typedef boost::detail::multi_array::size_type size_type;
26typedef boost::detail::multi_array::index_range<index_type,size_type> range;
27
28template <int NumRanges, int NumDims>
29void check(const boost::detail::multi_array::
30 index_gen<NumRanges,NumDims>&) { }
31
32bool operator==(const range& lhs,const range& rhs) {
33 return lhs.start_ == rhs.start_ &&
34 lhs.finish_ == rhs.finish_ &&
35 lhs.stride_ == rhs.stride_ &&
36 lhs.degenerate_ == rhs.degenerate_;
37}
38
39int
40main()
41{
42
43 boost::detail::multi_array::index_gen<0,0> indices;
44
45
46 check<1,1>(indices[range()]);
47 check<2,2>(indices[range()][range()]);
48 check<3,3>(indices[range()][range()][range()]);
49
50 check<1,0>(indices[0]);
51 check<2,0>(indices[0][0]);
52 check<2,1>(indices[range()][0]);
53 check<2,1>(indices[0][range()]);
54 check<3,0>(indices[0][0][0]);
55 check<3,1>(indices[range()][0][0]);
56 check<3,1>(indices[0][range()][0]);
57 check<3,1>(indices[0][0][range()]);
58 check<3,2>(indices[range()][range()][0]);
59 check<3,2>(indices[range()][0][range()]);
60 check<3,2>(indices[0][range()][range()]);
61
62 {
63 boost::detail::multi_array::index_gen<3,3> is1 =
64 indices[range(0,1,2)][range(1,2,3)][range(2,3,4)];
65 BOOST_TEST(is1.ranges_[0] == range(0,1,2));
66 BOOST_TEST(is1.ranges_[1] == range(1,2,3));
67 BOOST_TEST(is1.ranges_[2] == range(2,3,4));
68 }
69
70 {
71 boost::detail::multi_array::index_gen<3,2> is2 =
72 indices[range(0,1,2)][2][range(2,3,4)];
73 BOOST_TEST(is2.ranges_[0] == range(0,1,2));
74 BOOST_TEST(is2.ranges_[1] == range(2));
75 BOOST_TEST(is2.ranges_[1].is_degenerate());
76 BOOST_TEST(is2.ranges_[2] == range(2,3,4));
77 }
78
79 return boost::report_errors();
80}
81
82

source code of boost/libs/multi_array/test/idxgen1.cpp