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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// Copyright (c) 2021, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// 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)
#include <algorithm>
#include <iterator>
#include <geometry_test_common.hpp>
#include <boost/geometry/iterators/closing_iterator.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/ring.hpp>
#include <boost/range/adaptor/transformed.hpp>
void test_concept()
{
std::vector<int> v = {1, 2, 3};
using iterator = bg::closing_iterator<std::vector<int>>;
using const_iterator = bg::closing_iterator<std::vector<int> const>;
iterator it, it2(v);
const_iterator cit, cit2(v);
BOOST_CHECK((std::is_same<decltype(*it2), const int&>::value));
BOOST_CHECK((std::is_same<decltype(*cit2), const int&>::value));
it = it2;
cit = cit2;
BOOST_CHECK_EQUAL(*it, 1);
BOOST_CHECK_EQUAL(*cit, 1);
cit = ++it;
BOOST_CHECK_EQUAL(*it, 2);
BOOST_CHECK_EQUAL(*cit, 2);
// This is ok because both of these iterators are in fact const iterators
it = ++cit;
BOOST_CHECK_EQUAL(*it, 3);
BOOST_CHECK_EQUAL(*cit, 3);
// Check compilations, it is (since Oct 2010) random access
it--;
--it;
it += 2;
it -= 2;
}
// The closing iterator should also work on normal std:: containers
void test_empty_non_geometry()
{
std::vector<int> v;
typedef bg::closing_iterator
<
std::vector<int> const
> closing_iterator;
closing_iterator it(v);
closing_iterator end(v, true);
BOOST_CHECK(it == end);
}
void test_non_geometry()
{
std::vector<int> v = {1, 2, 3};
std::vector<int> closed_v = { 1, 2, 3, 1 };
typedef bg::closing_iterator
<
std::vector<int> const
> closing_iterator;
closing_iterator it(v);
closing_iterator end(v, true);
BOOST_CHECK(std::equal(it, end, closed_v.begin(), closed_v.end()));
}
void test_transformed_non_geometry()
{
std::vector<int> v = {-1, -2, -3};
std::vector<int> closed_v = { 1, 2, 3, 1 };
typedef boost::transformed_range
<
std::negate<int>,
std::vector<int>
> transformed_range;
typedef bg::closing_iterator
<
transformed_range const
> closing_iterator;
transformed_range v2 = v | boost::adaptors::transformed(std::negate<int>());
closing_iterator it(v2);
closing_iterator end(v2, true);
BOOST_CHECK(std::equal(it, end, closed_v.begin(), closed_v.end()));
}
template <typename P>
void test_geometry()
{
bg::model::ring<P> geometry = { {1, 1}, {1, 4}, {4, 4}, {4, 1} };
bg::model::ring<P> closed = { {1, 1}, {1, 4}, {4, 4}, {4, 1}, {1, 1} };
using closing_iterator = bg::closing_iterator<bg::model::ring<P> const>;
auto pred = [](P const& p1, P const& p2)
{
return bg::get<0>(p1) == bg::get<0>(p2) && bg::get<1>(p1) == bg::get<1>(p2);
};
// 1. Test normal behaviour
{
closing_iterator it(geometry);
closing_iterator end(geometry, true);
BOOST_CHECK((std::equal(it, end, closed.begin(), closed.end(), pred)));
}
// 2: check copy behaviour
{
bg::model::ring<P> copy;
std::copy(closing_iterator(geometry), closing_iterator(geometry, true),
std::back_inserter(copy));
BOOST_CHECK((std::equal(copy.begin(), copy.end(), closed.begin(), closed.end(), pred)));
}
}
int test_main(int, char* [])
{
test_concept();
test_empty_non_geometry();
test_non_geometry();
test_transformed_non_geometry();
test_geometry<bg::model::d2::point_xy<double>>();
return 0;
}
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