Minor change to avoid compiler error in visual studio.

6660ec1b · Davis King · d1cf19fc · 6660ec1b
Commit 6660ec1b authored May 14, 2013 by Davis King
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dlib/timing.h dlib/timing.h +1 -1

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--- a/dlib/timing.h
+++ b/dlib/timing.h
@@ -133,7 +133,7 @@ namespace dlib
                    name = name_buf(i,"");
                else 
                    name = cast_to_string(i);
-                max_name_length = std::max(max_name_length, name.size());
+                max_name_length = std::max<unsigned long>(max_name_length, name.size());
            }
            for (int i = 0; i < TIME_SLOTS; ++i)