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