Boost.RangeEx merged into Boost.Range

[SVN r60897]

test/adaptor_test/map_keys_example.cpp

@@ -0,0 +1,60 @@
+// 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/map.hpp>
+#include <boost/range/algorithm/copy.hpp>
+#include <boost/assign.hpp>
+#include <algorithm>
+#include <iostream>
+#include <map>
+#include <vector>
+
+#include <boost/test/test_tools.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <boost/range/algorithm_ext/push_back.hpp>
+
+namespace 
+{
+    void map_keys_example_test()
+    {
+        using namespace boost::assign;
+        using namespace boost::adaptors;
+
+        std::map<int,int> input;
+        for (int i = 0; i < 10; ++i)
+            input.insert(std::make_pair(i, i * 10));
+
+        boost::copy(
+            input | map_keys,
+            std::ostream_iterator<int>(std::cout, ","));
+
+        
+        std::vector<int> reference;
+        reference += 0,1,2,3,4,5,6,7,8,9;
+
+        std::vector<int> test;
+        boost::push_back(test, input | map_keys);
+
+        BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(),
+            test.begin(), test.end() );
+    }
+}
+
+boost::unit_test::test_suite*
+init_unit_test_suite(int argc, char* argv[])
+{
+    boost::unit_test::test_suite* test
+        = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.map_keys_example" );
+
+    test->add( BOOST_TEST_CASE( &map_keys_example_test ) );
+
+    return test;
+}