Fixed compiler warning

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402715

dlib/matrix/matrix.h

@@ -1463,10 +1463,10 @@ namespace dlib
             }
 
 
-            bool is_copy;
             matrix* m;
             mutable long r;
             mutable long c;
+            bool is_copy;
         };
 
     public:

dlib/test/matrix.cpp

@@ -1825,6 +1825,31 @@ namespace
             DLIB_CASSERT(( uniform_matrix<double,303,303>(3)*identity_matrix<double,303>() == uniform_matrix<double,303,303>(3) ), "");
         }
 
+        {
+            matrix<double> m(2,3);
+            m << 1,2,3,
+                 5,6,7;
+
+            DLIB_CASSERT(m(0,0) == 1 && m(0,1) == 2 && m(0,2) == 3 &&
+                         m(1,0) == 5 && m(1,1) == 6 && m(1,2) == 7,"");
+
+            matrix<double,2,3> m2;
+            m2 << 1,2,3,
+                  5,6,7;
+            DLIB_CASSERT(m2(0,0) == 1 && m2(0,1) == 2 && m2(0,2) == 3 &&
+                         m2(1,0) == 5 && m2(1,1) == 6 && m2(1,2) == 7,"");
+
+            matrix<double,2,1> m3;
+            m3 << 1,
+                  5;
+            DLIB_CASSERT(m3(0) == 1 && m3(1) == 5 ,"");
+
+            matrix<double,1,2> m4;
+            m4 << 1, 5;
+            DLIB_CASSERT(m3(0) == 1 && m3(1) == 5 ,"");
+        }
+
+
     }