From b271f956c2b1b429ae403a94f8a80d2a7b8d7a75 Mon Sep 17 00:00:00 2001
From: Yanqin Jin <yanqin@fb.com>
Date: Thu, 9 Aug 2018 19:37:47 -0700
Subject: [PATCH] Fix a TSAN failure (#4250)

Summary:
TSAN fails due to comparison between signed int and unsigned long. Fix it by
static_casting.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4250

Differential Revision: D9256535

Pulled By: riversand963

fbshipit-source-id: c6bad23ff70c6d0ec58e2e85c401ce0ad45de609
---
 tools/sst_dump_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/sst_dump_test.cc b/tools/sst_dump_test.cc
index 88e6260e6..17b59fd77 100644
--- a/tools/sst_dump_test.cc
+++ b/tools/sst_dump_test.cc
@@ -110,7 +110,7 @@ public:
   template<std::size_t N>
   void PopulateCommandArgs(const std::string& file_path, const char* command,
     char* (&usage)[N]) const {
-    for (int i = 0; i < N; ++i) {
+    for (int i = 0; i < static_cast<int>(N); ++i) {
       usage[i] = new char[optLength];
     }
     snprintf(usage[0], optLength, "./sst_dump");