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154 lines
3.5 KiB
C++
154 lines
3.5 KiB
C++
// Boost.Range library
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//
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// Copyright Neil Groves 2014. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 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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//
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// For more information, see http://www.boost.org/libs/range/
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//
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#include <boost/range/iterator.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/type_traits/is_base_of.hpp>
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#include <boost/type_traits/decay.hpp>
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#include <boost/test/test_tools.hpp>
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#include <boost/test/unit_test.hpp>
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#include <vector>
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namespace boost_range_test
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{
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struct point
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{
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int x;
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int y;
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};
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class shape
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{
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public:
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virtual ~shape()
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{
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}
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const std::vector<point>& points() const
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{
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return m_points;
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}
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private:
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std::vector<point> m_points;
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};
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class rectangle : public shape
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{
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};
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class circle : public shape
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{
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};
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class container
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{
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typedef std::vector<point> impl_t;
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};
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} // namespace boost_range_test
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namespace boost
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{
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template<typename T>
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struct range_mutable_iterator<
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T,
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typename boost::enable_if<
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boost::is_base_of<
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boost_range_test::shape,
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typename boost::remove_reference<
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typename boost::remove_cv<T>::type
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>::type
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>
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>::type
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>
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{
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typedef std::vector<boost_range_test::point>::iterator type;
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};
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template<typename T>
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struct range_const_iterator<
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T,
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typename boost::enable_if<
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boost::is_base_of<
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boost_range_test::shape,
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typename boost::remove_reference<
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typename boost::remove_cv<T>::type
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>::type
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>
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>::type
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>
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{
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typedef std::vector<boost_range_test::point>::const_iterator type;
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};
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template<>
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struct range_mutable_iterator<boost_range_test::container>
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{
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typedef std::vector<boost_range_test::point>::iterator type;
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};
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template<>
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struct range_const_iterator<boost_range_test::container>
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{
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typedef std::vector<boost_range_test::point>::const_iterator type;
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};
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}
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namespace boost_range_test
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{
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template<typename Shape>
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void test_iterator_impl()
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{
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BOOST_STATIC_ASSERT((
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boost::is_same<
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std::vector<point>::iterator,
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typename boost::range_iterator<Shape>::type
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>::value));
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BOOST_STATIC_ASSERT((
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boost::is_same<
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std::vector<point>::const_iterator,
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typename boost::range_iterator<const Shape>::type
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>::value));
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#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
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BOOST_STATIC_ASSERT((
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boost::is_same<
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std::vector<point>::iterator,
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typename boost::range_iterator<Shape&&>::type
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>::value));
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#endif
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}
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void test_iterator()
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{
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test_iterator_impl<shape>();
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test_iterator_impl<rectangle>();
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test_iterator_impl<circle>();
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test_iterator_impl<container>();
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}
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} // namespace boost_range_test
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boost::unit_test::test_suite* init_unit_test_suite( int argc, char* argv[] )
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{
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boost::unit_test::test_suite* test =
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BOOST_TEST_SUITE("Boost.Range range_iterator meta-function");
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test->add(BOOST_TEST_CASE(&boost_range_test::test_iterator));
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return test;
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}
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