ARROW-8242: [C++] Flight fails to compile on GCC 4.8

The error has occured in the manylinux1 builds. Closes #6739 from kszucs/ARROW-8242 Authored-by: Krisztián Szűcs <szucs.krisztian@gmail.com> Signed-off-by: Wes McKinney <wesm+git@apache.org>
apache · Mar 27, 2020 · 26bd82f · 26bd82f
1 parent 0f512af
commit 26bd82f
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Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/cpp/src/arrow/flight/client.cc b/cpp/src/arrow/flight/client.cc
@@ -325,10 +325,11 @@ Status GrpcStreamReader::Open(std::unique_ptr<ClientRpc> rpc,
                               std::unique_ptr<GrpcStreamReader>* out) {
   *out = std::unique_ptr<GrpcStreamReader>(new GrpcStreamReader);
   out->get()->rpc_ = std::move(rpc);
-  std::unique_ptr<GrpcIpcMessageReader> message_reader(
+  auto reader = std::unique_ptr<ipc::MessageReader>(
       new GrpcIpcMessageReader(out->get(), out->get()->rpc_, std::move(stream)));
-  return (ipc::RecordBatchStreamReader::Open(std::move(message_reader))
-              .Value(&(*out)->batch_reader_));
+  ARROW_ASSIGN_OR_RAISE((*out)->batch_reader_,
+                        ipc::RecordBatchStreamReader::Open(std::move(reader)));
+  return Status::OK();
 }
 
 std::shared_ptr<Schema> GrpcStreamReader::schema() const {

diff --git a/cpp/src/arrow/flight/internal.cc b/cpp/src/arrow/flight/internal.cc
@@ -89,7 +89,7 @@ static Status FromGrpcContext(const grpc::ClientContext& ctx, Status* status) {
   }
 
   const grpc::string_ref code_ref = (*code_val).second;
-  StatusCode code;
+  StatusCode code = {};
   RETURN_NOT_OK(StatusCodeFromString(code_ref, &code));
 
   const auto message_val = trailers.find(kGrpcStatusMessageHeader);