| 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 | // range1.cpp - test of index_range |
| 15 | // |
| 16 | |
| 17 | |
| 18 | #include <boost/multi_array/index_range.hpp> |
| 19 | |
| 20 | #include <boost/core/lightweight_test.hpp> |
| 21 | |
| 22 | #include <boost/array.hpp> |
| 23 | #include <cstddef> |
| 24 | |
| 25 | int |
| 26 | main() |
| 27 | { |
| 28 | typedef boost::detail::multi_array::index_range<int,std::size_t> range; |
| 29 | |
| 30 | { |
| 31 | // typical range creation and extraction |
| 32 | range r1(-3,5); |
| 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); |
| 40 | } |
| 41 | |
| 42 | { |
| 43 | range r2(-3,5,2); |
| 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()); |
| 49 | } |
| 50 | |
| 51 | { |
| 52 | // degenerate creation |
| 53 | range r3(5); |
| 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()); |
| 59 | } |
| 60 | |
| 61 | { |
| 62 | // default range creation |
| 63 | range r4; |
| 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); |
| 68 | } |
| 69 | |
| 70 | { |
| 71 | // create a range using the setter methods |
| 72 | range r5 = range().stride(s: 2).start(s: -3).finish(f: 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); |
| 77 | } |
| 78 | |
| 79 | // try out all the comparison operators |
| 80 | { |
| 81 | range r6 = -3 <= range().stride(s: 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); |
| 86 | } |
| 87 | |
| 88 | { |
| 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); |
| 94 | } |
| 95 | |
| 96 | // arithmetic operators |
| 97 | { |
| 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); |
| 103 | } |
| 104 | |
| 105 | { |
| 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); |
| 111 | } |
| 112 | |
| 113 | return boost::report_errors(); |
| 114 | } |
| 115 |