From 2210db9c4e5f3abf8a069df17f93b608762ae1ce Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Mon, 19 Jan 2015 13:26:33 +1100
Subject: [PATCH] point: add a cast method

---
 point.hpp |  2 ++
 point.ipp | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/point.hpp b/point.hpp
index 75402b90..ba3dab8a 100644
--- a/point.hpp
+++ b/point.hpp
@@ -63,6 +63,8 @@ namespace util {
 
         static const point<S,T> ORIGIN;
 
+        template<typename U> point<S,U> cast (void) const;
+
         void sanity (void) const;
     };
 
diff --git a/point.ipp b/point.ipp
index 12c0b912..22e3b295 100644
--- a/point.ipp
+++ b/point.ipp
@@ -93,4 +93,18 @@ namespace util {
                      out.data + L1);
         return out;
     }
+
+
+    //-------------------------------------------------------------------------
+    template <size_t S, typename T>
+    template <typename U>
+    point<S,U>
+    point<S,T>::cast (void) const
+    {
+        point<S,U> out;
+        std::copy (std::begin (this->data),
+                   std::end   (this->data),
+                   std::begin (out.data));
+        return out;
+    }
 }