diff -up ./libs/base/include/mrpt/math/matrix_adaptors.h.cpp11 ./libs/base/include/mrpt/math/matrix_adaptors.h
--- ./libs/base/include/mrpt/math/matrix_adaptors.h.cpp11	2017-03-10 13:59:24.250402699 -0500
+++ ./libs/base/include/mrpt/math/matrix_adaptors.h	2017-03-10 13:59:30.534629325 -0500
@@ -504,7 +504,7 @@ namespace mrpt
 				return const_reverse_iterator(*this,-1);
 			}
 			inline size_t size() const	{
-				return howMany();
+				return howMany;
 			}
 			inline void resize(size_t N)	{
 				if (N!=size()) throw std::logic_error("Tried to resize a fixed-size vector");