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[ceph.git] / ceph / src / boost / boost / accumulators / statistics / mean.hpp

diff --git a/ceph/src/boost/boost/accumulators/statistics/mean.hpp b/ceph/src/boost/boost/accumulators/statistics/mean.hpp
index 47888371843adae3474b97b6ac8b72185ea27971..c6df176b78db36d1e70583649962c2d71a486276 100644 (file)
--- a/ceph/src/boost/boost/accumulators/statistics/mean.hpp
+++ b/ceph/src/boost/boost/accumulators/statistics/mean.hpp
@@ -41,6 +41,10 @@ namespace impl
             extractor<SumFeature> sum;
             return numeric::fdiv(sum(args), count(args));
         }
+
+        // serialization is done by accumulators it depends on
+        template<class Archive>
+        void serialize(Archive & ar, const unsigned int file_version) {}
     };
 
     template<typename Sample, typename Tag>
@@ -71,6 +75,12 @@ namespace impl
             return this->mean;
         }
 
+        template<class Archive>
+        void serialize(Archive & ar, const unsigned int file_version)
+        { 
+            ar & mean;
+        }
+
     private:
         result_type mean;
     };