From 4ce3ce22c5d50dd3bd92223e43182d4efdfe4ef8 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Mon, 13 Jun 2016 09:28:26 +0200
Subject: api/simple-mat: allow for vector -> const double* conversion

---
 opentrack/simple-mat.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'opentrack')

diff --git a/opentrack/simple-mat.hpp b/opentrack/simple-mat.hpp
index 864f0e49..2855ad0e 100644
--- a/opentrack/simple-mat.hpp
+++ b/opentrack/simple-mat.hpp
@@ -206,6 +206,14 @@ public:
 
     Mat(num* mem) : Mat(const_cast<const num*>(mem)) {}
 
+    template<int h = h_,
+             int w = w_,
+             typename = typename std::enable_if<h == 1 || w == 1>::type>
+    operator const double*() const
+    {
+        return reinterpret_cast<const double*>(data);
+    }
+
     // XXX add more operators as needed, third-party dependencies mostly
     // not needed merely for matrix algebra -sh 20141030
 
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