From b2ad4d37dd7c87a92a72dc448b857d15514eef9a Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Tue, 14 May 2019 08:47:57 -0500
Subject: [PATCH] Overload operator<< for Position

---
 include/openmc/position.h | 3 +++
 src/position.cpp          | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/include/openmc/position.h b/include/openmc/position.h
index 4f0ed8a9ae..2be72b27cb 100644
--- a/include/openmc/position.h
+++ b/include/openmc/position.h
@@ -3,6 +3,7 @@
 
 #include <array>
 #include <cmath> // for sqrt
+#include <iostream>
 #include <stdexcept> // for out_of_range
 #include <vector>
 
@@ -94,6 +95,8 @@ inline bool operator==(Position a, Position b)
 inline bool operator!=(Position a, Position b)
 {return a.x != b.x || a.y != b.y || a.z != b.z;}
 
+std::ostream& operator<<(std::ostream& os, Position a);
+
 //==============================================================================
 //! Type representing a vector direction in Cartesian coordinates
 //==============================================================================
diff --git a/src/position.cpp b/src/position.cpp
index d7175912b0..1215bfb12e 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -94,4 +94,11 @@ Position::rotate(const std::vector<double>& rotation) const
   };
 }
 
+std::ostream&
+operator<<(std::ostream& os, Position r)
+{
+  os << "(" << r.x << ", " << r.y << ", " << r.z << ")";
+  return os;
+}
+
 } // namespace openmc