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-rw-r--r--src/google/protobuf/message_lite.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/google/protobuf/message_lite.cc b/src/google/protobuf/message_lite.cc
index fe124c45..9d7b64f7 100644
--- a/src/google/protobuf/message_lite.cc
+++ b/src/google/protobuf/message_lite.cc
@@ -361,6 +361,11 @@ void GenericTypeHandler<MessageLite>::Merge(const MessageLite& from,
MessageLite* to) {
to->CheckTypeAndMergeFrom(from);
}
+template<>
+void GenericTypeHandler<string>::Merge(const string& from,
+ string* to) {
+ *to = from;
+}
} // namespace internal
} // namespace protobuf