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-rw-r--r--utils/sparse_vector.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/utils/sparse_vector.h b/utils/sparse_vector.h
index c5e18b96..cce6c8a4 100644
--- a/utils/sparse_vector.h
+++ b/utils/sparse_vector.h
@@ -525,7 +525,7 @@ private:
if (values_.find(0) != values_.end()) { ++it; --eff_size; }
ar & eff_size;
while (it != this->end()) {
- const std::pair<std::string, T> wire_pair(FD::Convert(it->first), it->second);
+ const std::pair<const std::string&, const T&> wire_pair(FD::Convert(it->first), it->second);
ar & wire_pair;
++it;
}
@@ -545,6 +545,10 @@ private:
#endif
};
+#if HAVE_BOOST_ARCHIVE_TEXT_OARCHIVE_HPP
+BOOST_CLASS_TRACKING(SparseVector<double>,track_never)
+#endif
+
template <class T>
inline void swap(SparseVector<T> &a,SparseVector<T> &b) {
a.swap(b);