added deque support

CppLinq/cpplinq.hpp

@@ -27,6 +27,7 @@
 #include <string>
 #include <type_traits>
 #include <vector>
+#include <deque>
 #// ----------------------------------------------------------------------------
 #ifdef _MSC_VER
 #   pragma warning (push)
@@ -3296,6 +3297,39 @@ namespace cpplinq
 
         // -------------------------------------------------------------------------
 
+        struct to_deque_builder : base_builder
+        {
+            typedef                 to_deque_builder       this_type;
+
+            CPPLINQ_INLINEMETHOD explicit to_deque_builder() CPPLINQ_NOEXCEPT
+            {
+            }
+
+            CPPLINQ_INLINEMETHOD to_deque_builder(to_deque_builder const & v) CPPLINQ_NOEXCEPT
+            {
+            }
+
+            CPPLINQ_INLINEMETHOD to_deque_builder(to_deque_builder && v) CPPLINQ_NOEXCEPT
+            {
+            }
+
+            template<typename TRange>
+            CPPLINQ_METHOD std::deque<typename TRange::value_type> build(TRange range) const
+            {
+                std::deque<typename TRange::value_type> result;
+
+                while (range.next())
+                {
+                    result.push_back(range.front());
+                }
+
+                return result;
+            }
+
+        };
+
+        // -------------------------------------------------------------------------
+
         template<typename TKey, typename TValue>
         struct lookup
         {
@@ -5277,6 +5311,11 @@ namespace cpplinq
         return detail::to_vector_builder (capacity);
     }
 
+    CPPLINQ_INLINEMETHOD detail::to_deque_builder to_deque() CPPLINQ_NOEXCEPT
+    {
+        return detail::to_deque_builder();
+    }
+
     CPPLINQ_INLINEMETHOD detail::to_list_builder to_list () CPPLINQ_NOEXCEPT
     {
         return detail::to_list_builder ();

Test/CppLinqTests.hpp

@@ -29,6 +29,7 @@
 #include <string>
 #include <sstream>
 #include <vector>
+#include <deque>
 // ----------------------------------------------------------------------------------------------
 #include <limits.h>
 #include <stdio.h>
@@ -1368,6 +1369,27 @@ namespace
         }
     }
 
+    void test_to_deque ()
+    {
+        using namespace cpplinq;
+
+        TEST_PRELUDE ();
+
+        {
+            std::deque<int> to_deque_result = from (empty_vector) >> to_deque ();
+            TEST_ASSERT (0U, to_deque_result.size ());
+        }
+
+        {
+            std::deque<int> to_deque_result = from_array (ints) >> to_deque ();
+            TEST_ASSERT (count_of_ints, to_deque_result.size ());
+            for (auto index = 0U; index < to_deque_result.size (); ++index)
+            {
+                test_int_at (index, to_deque_result[index]);
+            }
+        }
+    }
+
     void test_to_map ()
     {
         using namespace cpplinq;