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-rw-r--r--boost/accumulators/statistics/sum.hpp7
1 files changed, 6 insertions, 1 deletions
diff --git a/boost/accumulators/statistics/sum.hpp b/boost/accumulators/statistics/sum.hpp
index 126ce244fd..7e507ccc26 100644
--- a/boost/accumulators/statistics/sum.hpp
+++ b/boost/accumulators/statistics/sum.hpp
@@ -51,8 +51,13 @@ namespace impl
return this->sum;
}
- private:
+ template<class Archive>
+ void serialize(Archive & ar, const unsigned int file_version)
+ {
+ ar & sum;
+ }
+ private:
Sample sum;
};