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- // Boost.Range library
- //
- // Copyright Thorsten Ottosen & Larry Evans 2003-2005. 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)
- //
- // For more information, see http://www.boost.org/libs/range/
- //
- //#include <boost/range/as_array.hpp>
- #include <boost/detail/workaround.hpp>
- #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
- # pragma warn -8091 // suppress warning in Boost.Test
- # pragma warn -8057 // unused argument argc/argv in Boost.Test
- #endif
- #include <boost/range/iterator_range.hpp>
- #include <boost/range/functions.hpp>
- #include <boost/range/as_literal.hpp>
- #include <boost/cstdint.hpp>
- #include <boost/test/test_tools.hpp>
- #include <boost/test/unit_test.hpp>
- #include <iostream>
- #include <string>
- #include <vector>
- void check_reference_type();
- void check_iterator_range()
- {
- typedef std::string::iterator iterator;
- typedef std::string::const_iterator const_iterator;
- typedef boost::iterator_range<iterator> irange;
- typedef boost::iterator_range<const_iterator> cirange;
- std::string str = "hello world";
- const std::string cstr = "const world";
- irange r = boost::make_iterator_range( str );
- r = boost::make_iterator_range( str.begin(), str.end() );
- cirange r2 = boost::make_iterator_range( cstr );
- r2 = boost::make_iterator_range( cstr.begin(), cstr.end() );
- r2 = boost::make_iterator_range( str );
- BOOST_CHECK( !r.empty() );
- BOOST_CHECK( !r2.empty() );
- //#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
- // if( !(bool)r )
- // BOOST_CHECK( false );
- // if( !(bool)r2 )
- // BOOST_CHECK( false );
- //#else
- if( !r )
- BOOST_CHECK( false );
- if( !r2 )
- BOOST_CHECK( false );
- //#endif
- BOOST_CHECK_EQUAL( r.size(), boost::size( r ) );
- BOOST_CHECK_EQUAL( r2.size(), boost::size( r2 ) );
- BOOST_CHECK_EQUAL( std::distance( r.begin(), r.end() ),
- std::distance( boost::begin( r2 ), boost::end( r2 ) ) );
- std::cout << r << r2;
- #ifndef BOOST_NO_STD_WSTRING
- std::wcout << boost::make_iterator_range( std::wstring( L"a wide string" ) )
- << boost::make_iterator_range( L"another wide string" );
- #endif
- std::string res = boost::copy_range<std::string>( r );
- BOOST_CHECK_EQUAL_COLLECTIONS( res.begin(), res.end(), r.begin(), r.end() );
- irange rr = boost::make_iterator_range( str );
- BOOST_CHECK( rr.equal( r ) );
- rr = boost::make_iterator_range( str.begin(), str.begin() + 5 );
- BOOST_CHECK( rr == boost::as_literal("hello") );
- BOOST_CHECK( rr != boost::as_literal("hell") );
- BOOST_CHECK( rr < boost::as_literal("hello dude") );
- BOOST_CHECK( boost::as_literal("hello") == rr );
- BOOST_CHECK( boost::as_literal("hell") != rr );
- BOOST_CHECK( ! (boost::as_literal("hello dude") < rr ) );
- irange rrr = rr;
- BOOST_CHECK( rrr == rr );
- BOOST_CHECK( !( rrr != rr ) );
- BOOST_CHECK( !( rrr < rr ) );
- const irange cr = boost::make_iterator_range( str );
- BOOST_CHECK_EQUAL( cr.front(), 'h' );
- BOOST_CHECK_EQUAL( cr.back(), 'd' );
- BOOST_CHECK_EQUAL( cr[1], 'e' );
- BOOST_CHECK_EQUAL( cr(1), 'e' );
- rrr = boost::make_iterator_range( str, 1, -1 );
- BOOST_CHECK( rrr == boost::as_literal("ello worl") );
- rrr = boost::make_iterator_range( rrr, -1, 1 );
- BOOST_CHECK( rrr == str );
- check_reference_type();
-
- // Check that an iterator range can be instantiated with
- // a pointer to an array as an iterator.
- int arr[2][2];
- boost::make_iterator_range(arr, arr + 2);
- }
- namespace iterator_range_test_detail
- {
- struct less
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l < r;
- }
- };
-
- struct greater
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l > r;
- }
- };
-
- struct less_or_equal
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l <= r;
- }
- };
-
- struct greater_or_equal
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l >= r;
- }
- };
-
- struct equal_to
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l == r;
- }
- };
-
- struct not_equal_to
- {
- template< class Left, class Right >
- bool operator()(const Left& l, const Right& r) const
- {
- return l != r;
- }
- };
-
- template< class Pred >
- void check_iterator_range_operators_impl(Pred pred)
- {
- std::vector<std::string> vals;
- vals.push_back(std::string());
- vals.push_back("a");
- vals.push_back("b");
- vals.push_back("z");
- vals.push_back("ab");
- vals.push_back("ba");
- vals.push_back("abc");
- vals.push_back("cba");
- vals.push_back("aa");
- vals.push_back("aaa");
- vals.push_back("aab");
- vals.push_back("bba");
- typedef std::string::const_iterator citer;
- typedef boost::iterator_range<citer> iter_range;
- typedef std::vector<std::string>::const_iterator value_const_iterator;
- value_const_iterator first_val = vals.begin();
- value_const_iterator last_val = vals.end();
-
- for (value_const_iterator left_it = first_val; left_it != last_val; ++left_it)
- {
- const std::string& leftValue = *left_it;
- for (value_const_iterator right_it = first_val; right_it != last_val; ++right_it)
- {
- const std::string& rightValue = *right_it;
- iter_range left = boost::make_iterator_range(leftValue);
- iter_range right = boost::make_iterator_range(rightValue);
-
- const bool reference = pred(leftValue, rightValue);
-
- BOOST_CHECK_EQUAL( pred(left, right), reference );
- BOOST_CHECK_EQUAL( pred(left, rightValue), reference );
- BOOST_CHECK_EQUAL( pred(leftValue, right), reference );
- }
- }
- }
-
- void check_iterator_range_from_array()
- {
- double source[] = { 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 };
- boost::iterator_range<double*> rng = boost::make_iterator_range(source);
- BOOST_CHECK_EQUAL_COLLECTIONS( rng.begin(), rng.end(),
- source, source + 6 );
- }
- void check_make_iterator_range_n()
- {
- using boost::uint32_t;
- std::vector<uint32_t> input;
- for (uint32_t i = 0; i < 10u; ++i)
- input.push_back(i);
- boost::iterator_range<std::vector<uint32_t>::iterator> rng =
- boost::make_iterator_range_n(boost::begin(input), 8u);
- BOOST_CHECK(rng.begin() == input.begin());
- BOOST_CHECK(rng.end() == input.begin() + 8);
- BOOST_CHECK_EQUAL(rng.size(), 8u);
- const std::vector<uint32_t>& cinput = input;
- boost::iterator_range<std::vector<uint32_t>::const_iterator> crng =
- boost::make_iterator_range_n(boost::begin(cinput), 8u);
- BOOST_CHECK(crng.begin() == cinput.begin());
- BOOST_CHECK(crng.end() == cinput.begin() + 8);
- BOOST_CHECK_EQUAL(crng.size(), 8u);
- }
- } // namespace iterator_range_test_detail
- template<typename Pred>
- inline void check_iterator_range_operator()
- {
- iterator_range_test_detail::check_iterator_range_operators_impl(
- Pred());
- }
- inline void test_advance()
- {
- std::vector<int> l;
- l.push_back(1);
- l.push_back(2);
- typedef boost::iterator_range<std::vector<int>::iterator> rng_t;
- rng_t r1(l.begin(), l.end());
- BOOST_CHECK(r1.advance_begin(1).advance_end(-1).empty());
-
- rng_t r2(l.begin(), l.end());
- BOOST_CHECK_EQUAL(r2.advance_begin(1).size(), 1u);
- rng_t r3(l.begin(), l.end());
- BOOST_CHECK_EQUAL(r3.advance_end(-1).size(), 1u);
- }
- struct ptr_iterator
- : boost::iterator_adaptor<ptr_iterator, int *>
- {
- ptr_iterator() {}
- ptr_iterator(int *p) : boost::iterator_adaptor<ptr_iterator, int *>(p) {}
- private:
- typedef void iterator; // To throw off the SFINAE mechanism in iterator_range
- };
- void test_sfinae()
- {
- boost::iterator_range<ptr_iterator> r(ptr_iterator(0), ptr_iterator(0));
- }
- //
- //
- // Check that constness is propagated correct from
- // the iterator types.
- //
- // Test contributed by Larry Evans.
- //
- template< class Container >
- int test_iter_range( Container& a_cont )
- {
- typedef BOOST_DEDUCED_TYPENAME boost::range_iterator<Container>::type citer_type;
- typedef boost::iterator_range<citer_type> riter_type;
- riter_type a_riter( boost::make_iterator_range( a_cont ) );
- a_riter.front();
- a_riter.back();
- int i = a_riter[0];
- return i;
- }
- void check_reference_type()
- {
- typedef std::vector<int> veci_type;
- veci_type a_vec;
- a_vec.push_back( 999 );
- test_iter_range<veci_type>(a_vec);
- test_iter_range<veci_type const>(a_vec);
- }
- boost::unit_test::test_suite* init_unit_test_suite( int argc, char* argv[] )
- {
- boost::unit_test::test_suite* test = BOOST_TEST_SUITE( "Range Test Suite" );
-
- test->add(BOOST_TEST_CASE(&check_iterator_range));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::less>));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::less_or_equal>));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::greater>));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::greater_or_equal>));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::equal_to>));
- test->add(BOOST_TEST_CASE(&check_iterator_range_operator<iterator_range_test_detail::not_equal_to>));
- test->add(BOOST_TEST_CASE(&iterator_range_test_detail::check_make_iterator_range_n));
- test->add(BOOST_TEST_CASE(&test_advance));
-
- return test;
- }
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