Fixes for g++ 4.9.2 compatibility (facebook#6053)

Summary: Taken from merryChris in facebook#6043 Stackoverflow ref on {{}} vs. {}: https://stackoverflow.com/questions/26947704/implicit-conversion-failure-from-initializer-list Note to reader: .clear() does not empty out an ostringstream, but .str("") suffices because we don't have to worry about clearing error flags. Pull Request resolved: facebook#6053 Test Plan: make check, manual run of filter_bench Differential Revision: D18602259 Pulled By: pdillinger fbshipit-source-id: f6190f83b8eab4e80e7c107348839edabe727841
wolfkdy · Nov 19, 2019 · c8e85d9 · c8e85d9
1 parent e213dd4
commit c8e85d9
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/db/compaction/compaction_iterator_test.cc b/db/compaction/compaction_iterator_test.cc
@@ -184,7 +184,7 @@ class TestSnapshotChecker : public SnapshotChecker {
  public:
   explicit TestSnapshotChecker(
       SequenceNumber last_committed_sequence,
-      const std::unordered_map<SequenceNumber, SequenceNumber>& snapshots = {})
+      const std::unordered_map<SequenceNumber, SequenceNumber>& snapshots = {{}})
       : last_committed_sequence_(last_committed_sequence),
         snapshots_(snapshots) {}
 

diff --git a/util/filter_bench.cc b/util/filter_bench.cc
@@ -606,7 +606,7 @@ double FilterBench::RandomQueryTest(uint32_t inside_threshold, bool dry_run,
   }
 
   if (!dry_run) {
-    fp_rate_report_ = std::ostringstream();
+    fp_rate_report_.str("");
     uint64_t q = 0;
     uint64_t fp = 0;
     double worst_fp_rate = 0.0;