1 files changed, 39 insertions, 0 deletions
diff --git a/intern/cycles/util/map.h b/intern/cycles/util/map.h
new file mode 100644
index 00000000000..f1b2522362f
--- /dev/null
+++ b/intern/cycles/util/map.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_MAP_H__
+#define __UTIL_MAP_H__
+
+#include <map>
+#include <unordered_map>
+
+CCL_NAMESPACE_BEGIN
+
+using std::map;
+using std::pair;
+using std::unordered_map;
+using std::unordered_multimap;
+
+template<typename T> static void map_free_memory(T &data)
+{
+  /* Use swap() trick to actually free all internal memory. */
+  T empty_data;
+  data.swap(empty_data);
+}
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_MAP_H__ */