From bfb4d830b299feb14da189b775700b5fa41950d5 Mon Sep 17 00:00:00 2001
From: Sergey Ponomarev <stokito@gmail.com>
Date: Wed, 18 Sep 2019 09:21:00 +0300
Subject: [PATCH] FIO_determineDstName: extract dstFileNameEndPos variable

---
 programs/fileio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/programs/fileio.c b/programs/fileio.c
index f7e3b2349..96170b14a 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -2210,8 +2210,9 @@ FIO_determineDstName(const char* srcFileName)
 
     /* return dst name == src name truncated from suffix */
     assert(dstFileNameBuffer != NULL);
-    memcpy(dstFileNameBuffer, srcFileName, sfnSize - suffixSize);
-    dstFileNameBuffer[sfnSize-suffixSize] = '\0';
+    size_t dstFileNameEndPos = sfnSize - suffixSize;
+    memcpy(dstFileNameBuffer, srcFileName, dstFileNameEndPos);
+    dstFileNameBuffer[dstFileNameEndPos] = '\0';
     return dstFileNameBuffer;
 
     /* note : dstFileNameBuffer memory is not going to be free */