Fixed compiler errors when using std::vector in mex wrapper.

dlib/matlab/mex_wrapper.cpp

@@ -341,6 +341,15 @@ namespace mex_binding
         std::string msg;
     };
 
+// -------------------------------------------------------
+
+    template <typename T>
+    void validate_and_populate_arg (
+        long arg_idx,
+        const mxArray *prhs,
+        T& arg
+    ); 
+
 // -------------------------------------------------------
 
     template <typename T>
@@ -1075,22 +1084,6 @@ namespace mex_binding
         assign_to_matlab(plhs,array_to_matrix(item));
     }
 
-    template <typename T>
-    typename dlib::enable_if<is_array_type<T> >::type assign_to_matlab(
-        mxArray*& plhs,
-        const T& item
-    ) 
-    {
-        mwSize dims[1] = {item.size()};
-        plhs = mxCreateCellArray(1,dims);
-        for (unsigned long i = 0; i < item.size(); ++i)
-        {
-            mxArray* next = 0;
-            assign_to_matlab(next, item[i]);
-            mxSetCell(plhs, i, next);
-        }
-    }
-
     template <typename T>
     typename dlib::disable_if_c<is_matrix<T>::value || is_array_type<T>::value || 
                                 is_same_type<T,function_handle>::value>::type assign_to_matlab(
@@ -1117,6 +1110,22 @@ namespace mex_binding
     {
     }
 
+    template <typename T>
+    typename dlib::enable_if<is_array_type<T> >::type assign_to_matlab(
+        mxArray*& plhs,
+        const T& item
+    ) 
+    {
+        mwSize dims[1] = {item.size()};
+        plhs = mxCreateCellArray(1,dims);
+        for (unsigned long i = 0; i < item.size(); ++i)
+        {
+            mxArray* next = 0;
+            assign_to_matlab(next, item[i]);
+            mxSetCell(plhs, i, next);
+        }
+    }
+
 // ----------------------------------------------------------------------------------------
 
     template <typename T>