115 lines
2.6 KiB
C++
115 lines
2.6 KiB
C++
// Copyright 2002 The Trustees of Indiana University.
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Boost.MultiArray Library
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// Authors: Ronald Garcia
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// Jeremy Siek
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// Andrew Lumsdaine
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// See http://www.boost.org/libs/multi_array for documentation.
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//
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// range1.cpp - test of index_range
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//
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#include <boost/multi_array/index_range.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <boost/array.hpp>
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#include <cstddef>
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int
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main()
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{
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typedef boost::detail::multi_array::index_range<int,std::size_t> range;
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{
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// typical range creation and extraction
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range r1(-3,5);
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BOOST_TEST(r1.start() == -3);
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BOOST_TEST(r1.finish() == 5);
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BOOST_TEST(r1.stride() == 1);
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BOOST_TEST(r1.size(0) == 8);
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BOOST_TEST(!r1.is_degenerate());
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BOOST_TEST(r1.get_start(0) == -3);
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BOOST_TEST(r1.get_finish(100) == 5);
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}
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{
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range r2(-3,5,2);
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BOOST_TEST(r2.start() == -3);
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BOOST_TEST(r2.finish() == 5);
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BOOST_TEST(r2.stride() == 2);
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BOOST_TEST(r2.size(0) == 4);
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BOOST_TEST(!r2.is_degenerate());
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}
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{
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// degenerate creation
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range r3(5);
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BOOST_TEST(r3.start() == 5);
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BOOST_TEST(r3.finish() == 6);
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BOOST_TEST(r3.stride() == 1);
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BOOST_TEST(r3.size(0) == 1);
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BOOST_TEST(r3.is_degenerate());
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}
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{
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// default range creation
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range r4;
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BOOST_TEST(r4.get_start(0) == 0);
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BOOST_TEST(r4.get_finish(100) == 100);
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BOOST_TEST(r4.stride() == 1);
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BOOST_TEST(r4.size(0) == 0);
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}
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{
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// create a range using the setter methods
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range r5 = range().stride(2).start(-3).finish(7);
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BOOST_TEST(r5.start() == -3);
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BOOST_TEST(r5.stride() == 2);
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BOOST_TEST(r5.finish() == 7);
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BOOST_TEST(r5.size(0) == 5);
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}
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// try out all the comparison operators
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{
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range r6 = -3 <= range().stride(2) < 7;
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BOOST_TEST(r6.start() == -3);
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BOOST_TEST(r6.stride() == 2);
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BOOST_TEST(r6.finish() == 7);
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BOOST_TEST(r6.size(0) == 5);
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}
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{
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range r7 = -3 < range() <= 7;
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BOOST_TEST(r7.start() == -2);
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BOOST_TEST(r7.stride() == 1);
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BOOST_TEST(r7.finish() == 8);
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BOOST_TEST(r7.size(0) == 10);
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}
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// arithmetic operators
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{
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range r8 = range(0,5) + 2;
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BOOST_TEST(r8.start() == 2);
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BOOST_TEST(r8.stride() == 1);
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BOOST_TEST(r8.finish() == 7);
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BOOST_TEST(r8.size(0) == 5);
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}
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{
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range r9 = range(0,5) - 2;
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BOOST_TEST(r9.start() == -2);
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BOOST_TEST(r9.stride() == 1);
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BOOST_TEST(r9.finish() == 3);
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BOOST_TEST(r9.size(0) == 5);
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}
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return boost::report_errors();
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}
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