From 37a8562961680521c7e60b838fa6c73d25eb4066 Mon Sep 17 00:00:00 2001
From: Pavel Kirienko <pavel.kirienko@gmail.com>
Date: Fri, 10 Jul 2015 17:11:09 +0300
Subject: [PATCH] EnumMin, EnumMax

---
 libuavcan/include/uavcan/util/templates.hpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/libuavcan/include/uavcan/util/templates.hpp b/libuavcan/include/uavcan/util/templates.hpp
index b90c8c3817..aa61ca1cb3 100644
--- a/libuavcan/include/uavcan/util/templates.hpp
+++ b/libuavcan/include/uavcan/util/templates.hpp
@@ -175,6 +175,24 @@ To coerceOrFallback(const From& from)
  * @}
  */
 
+/**
+ * Selects smaller value
+ */
+template <long A, long B>
+struct EnumMin
+{
+    enum { Result = (A < B) ? A : B };
+};
+
+/**
+ * Selects larger value
+ */
+template <long A, long B>
+struct EnumMax
+{
+    enum { Result = (A > B) ? A : B };
+};
+
 /**
  * Compile time square root for integers.
  * Useful for operations on square matrices.