Fix 2 more unused reference errors VS2017

Summary: As in facebook#3425 Closes facebook#3497 Differential Revision: D6979588 Pulled By: gfosco fbshipit-source-id: e9fb32d04ad45575dfe9de1d79348d158e474197
dmitrip · Feb 14, 2018 · ba6ee1f · ba6ee1f
1 parent b3c5351
commit ba6ee1f
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/db/memtable.cc b/db/memtable.cc
@@ -834,7 +834,8 @@ void MemTable::Update(SequenceNumber seq,
   }
 
   // key doesn't exist
-  bool add_res __attribute__((__unused__)) = Add(seq, kTypeValue, key, value);
+  bool add_res __attribute__((__unused__));
+  add_res = Add(seq, kTypeValue, key, value);
   // We already checked unused != seq above. In that case, Add should not fail.
   assert(add_res);
 }

diff --git a/db/write_batch.cc b/db/write_batch.cc
@@ -1199,13 +1199,15 @@ class MemTableInserter : public WriteBatch::Handler {
                                                  value, &merged_value);
         if (status == UpdateStatus::UPDATED_INPLACE) {
           // prev_value is updated in-place with final value.
-          bool mem_res __attribute__((__unused__)) = mem->Add(
+          bool mem_res __attribute__((__unused__));
+          mem_res = mem->Add(
               sequence_, value_type, key, Slice(prev_buffer, prev_size));
           assert(mem_res);
           RecordTick(moptions->statistics, NUMBER_KEYS_WRITTEN);
         } else if (status == UpdateStatus::UPDATED) {
           // merged_value contains the final value.
-          bool mem_res __attribute__((__unused__)) =
+          bool mem_res __attribute__((__unused__));
+          mem_res =
               mem->Add(sequence_, value_type, key, Slice(merged_value));
           assert(mem_res);
           RecordTick(moptions->statistics, NUMBER_KEYS_WRITTEN);