1 files changed, 125 insertions, 0 deletions
diff --git a/ml/dlib/dlib/graph_utils/ordered_sample_pair.h b/ml/dlib/dlib/graph_utils/ordered_sample_pair.h
new file mode 100644
index 000000000..7d510e122
--- /dev/null
+++ b/ml/dlib/dlib/graph_utils/ordered_sample_pair.h
@@ -0,0 +1,125 @@
+// Copyright (C) 2012  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_ORDERED_SAMPLE_PaIR_Hh_
+#define DLIB_ORDERED_SAMPLE_PaIR_Hh_
+
+#include "ordered_sample_pair_abstract.h"
+#include <limits>
+#include "../serialize.h"
+
+namespace dlib
+{
+
+// ----------------------------------------------------------------------------------------
+
+    class ordered_sample_pair 
+    {
+    public:
+        ordered_sample_pair(
+        ) : 
+            _index1(0),
+            _index2(0)
+        {
+            _distance = 1;
+        }
+
+        ordered_sample_pair (
+            const unsigned long idx1,
+            const unsigned long idx2
+        )
+        {
+            _distance = 1;
+            _index1 = idx1;
+            _index2 = idx2;
+        }
+
+        ordered_sample_pair (
+            const unsigned long idx1,
+            const unsigned long idx2,
+            const double dist
+        )
+        {
+            _distance = dist;
+            _index1 = idx1;
+            _index2 = idx2;
+        }
+
+        const unsigned long& index1 (
+        ) const { return _index1; }
+
+        const unsigned long& index2 (
+        ) const { return _index2; }
+
+        const double& distance (
+        ) const { return _distance; }
+
+    private:
+        unsigned long _index1;
+        unsigned long _index2;
+        double _distance;
+    };
+
+// ----------------------------------------------------------------------------------------
+
+    inline bool operator == (
+        const ordered_sample_pair& a,
+        const ordered_sample_pair& b
+    ) 
+    {
+        return a.index1() == b.index1() && a.index2() == b.index2();
+    }
+
+    inline bool operator != (
+        const ordered_sample_pair& a,
+        const ordered_sample_pair& b
+    ) 
+    {
+        return !(a == b); 
+    }
+
+// ----------------------------------------------------------------------------------------
+
+    inline void serialize (
+        const ordered_sample_pair& item,
+        std::ostream& out
+    )
+    {
+        try
+        {
+            serialize(item.index1(),out);
+            serialize(item.index2(),out);
+            serialize(item.distance(),out);
+        }
+        catch (serialization_error& e)
+        { 
+            throw serialization_error(e.info + "\n   while serializing object of type ordered_sample_pair"); 
+        }
+    }
+
+    inline void deserialize (
+        ordered_sample_pair& item,
+        std::istream& in 
+    )
+    {
+        try
+        {
+            unsigned long idx1, idx2;
+            double dist;
+
+            deserialize(idx1,in);
+            deserialize(idx2,in);
+            deserialize(dist,in);
+            item = ordered_sample_pair(idx1, idx2, dist);
+        }
+        catch (serialization_error& e)
+        { 
+            throw serialization_error(e.info + "\n   while deserializing object of type ordered_sample_pair"); 
+        }
+    }
+
+// ----------------------------------------------------------------------------------------
+
+}
+
+#endif // DLIB_ORDERED_SAMPLE_PaIR_Hh_
+