Made code a little more generic.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403494

dlib/optimization/optimization_oca.h

@@ -162,7 +162,7 @@ namespace dlib
             typedef typename matrix_type::type scalar_type;
             typedef typename matrix_type::layout_type layout_type;
             typedef typename matrix_type::mem_manager_type mem_manager_type;
-            typedef matrix<scalar_type,0,1,mem_manager_type, layout_type> vect_type;
+            typedef matrix_type vect_type;
 
             const scalar_type C = problem.get_C();