Boost.RangeEx merged into Boost.Range

[SVN r60897]

test/adaptor_test/indexed_example.cpp

@@ -0,0 +1,95 @@
+// Boost.Range library
+//
+//  Copyright Neil Groves 2009. 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/adaptor/indexed.hpp>
+#include <boost/range/algorithm/copy.hpp>
+#include <boost/assign.hpp>
+#include <algorithm>
+#include <iostream>
+#include <vector>
+
+#include <boost/test/test_tools.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <boost/range/algorithm_ext/push_back.hpp>
+
+namespace 
+{
+    template<class Iterator>
+    void display_element_and_index(Iterator first, Iterator last)
+    {
+        for (Iterator it = first; it != last; ++it)
+        {
+            std::cout << "Element = " << *it << " Index = " << it.index() << std::endl;
+        }
+    }
+
+    template<class SinglePassRange>
+    void display_element_and_index(const SinglePassRange& rng)
+    {
+        display_element_and_index(boost::begin(rng), boost::end(rng));
+    }
+
+    template<class Iterator1, class Iterator2>
+    void check_element_and_index(
+            Iterator1 test_first,
+            Iterator1 test_last,
+            Iterator2 reference_first,
+            Iterator2 reference_last)
+    {
+        BOOST_CHECK_EQUAL( std::distance(test_first, test_last),
+                           std::distance(reference_first, reference_last) );
+
+        int reference_index = 0;
+
+        Iterator1 test_it = test_first;
+        Iterator2 reference_it = reference_first;
+        for (; test_it != test_last; ++test_it, ++reference_it, ++reference_index)
+        {
+            BOOST_CHECK_EQUAL( *test_it, *reference_it );
+            BOOST_CHECK_EQUAL( test_it.index(), reference_index );
+        }
+    }
+
+    template<class SinglePassRange1, class SinglePassRange2>
+    void check_element_and_index(
+        const SinglePassRange1& test_rng,
+        const SinglePassRange2& reference_rng)
+    {
+        check_element_and_index(boost::begin(test_rng), boost::end(test_rng),
+            boost::begin(reference_rng), boost::end(reference_rng));
+    }
+
+    void indexed_example_test()
+    {
+        using namespace boost::assign;
+        using namespace boost::adaptors;
+
+        std::vector<int> input;
+        input += 10,20,30,40,50,60,70,80,90;
+
+        display_element_and_index( input | indexed(0) );
+
+        check_element_and_index(
+            input | indexed(0),
+            input);
+    }
+}
+
+boost::unit_test::test_suite*
+init_unit_test_suite(int argc, char* argv[])
+{
+    boost::unit_test::test_suite* test
+        = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.indexed_example" );
+
+    test->add( BOOST_TEST_CASE( &indexed_example_test ) );
+
+    return test;
+}