1 files changed, 43 insertions, 0 deletions
diff --git a/libtransport/includes/hicn/transport/utils/enum_iterator.h b/libtransport/includes/hicn/transport/utils/enum_iterator.h
new file mode 100644
index 000000000..5e108b088
--- /dev/null
+++ b/libtransport/includes/hicn/transport/utils/enum_iterator.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * 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.
+ */
+
+#include <type_traits>
+
+template <typename C, C begin_val, C end_val>
+class Iterator {
+  typedef typename std::underlying_type<C>::type val_t;
+  int val;
+
+ public:
+  Iterator(const C& f) : val(static_cast<val_t>(f)) {}
+
+  Iterator() : val(static_cast<val_t>(begin_val)) {}
+
+  Iterator operator++() {
+    ++val;
+    return *this;
+  }
+
+  C operator*() { return static_cast<C>(val); }
+
+  Iterator begin() { return *this; }  // default ctor is good
+
+  Iterator end() {
+    static const Iterator endIter = ++Iterator(end_val);  // cache it
+    return endIter;
+  }
+
+  bool operator!=(const Iterator& i) { return val != i.val; }
+};
+\ No newline at end of file