From da6371b5b2f086f59e90db4ecd34e7e6f6095b68 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 11 Jan 2021 13:29:16 +0800
Subject: [PATCH] [TD-225]fix compiler error.

---
 src/os/src/detail/osString.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/os/src/detail/osString.c b/src/os/src/detail/osString.c
index 04c81cda3f..59f47b4815 100644
--- a/src/os/src/detail/osString.c
+++ b/src/os/src/detail/osString.c
@@ -58,7 +58,7 @@ bool taosMbsToUcs4(char *mbs, size_t mbsLength, char *ucs4, int32_t ucs4_max_len
 
   iconv_close(cd);
   if (len != NULL) {
-    *len = ucs4_max_len - outLeft;
+    *len = (int32_t)(ucs4_max_len - outLeft);
   }
 
   return true;
-- 
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