IPRT: Fixed unused variable warnings.

git-svn-id: https://www.virtualbox.org/svn/vbox/trunk@39032 cfe28804-0f27-0410-a406-dd0f0b0b656f

1 files changed, 5 insertions, 4 deletions

diff --git a/src/VBox/Runtime/common/string/RTStrCatP.cpp b/src/VBox/Runtime/common/string/RTStrCatP.cpp
index 33c049d46e3..3c98097ebb6 100644
--- a/src/VBox/Runtime/common/string/RTStrCatP.cpp
+++ b/src/VBox/Runtime/common/string/RTStrCatP.cpp
@@ -4,7 +4,7 @@
  */
 
 /*
- * Copyright (C) 2010 Oracle Corporation
+ * Copyright (C) 2010-2011 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
  * available from http://www.virtualbox.org. This file is free software;
@@ -38,11 +38,12 @@ RTDECL(int) RTStrCatP(char **ppszDst, size_t *pcbDst, const char *pszSrc)
      * Advance past the current string in the output buffer and turn this into
      * a copy operation.
      */
-    size_t  cbDst  = *pcbDst;
-    char   *pszDst = RTStrEnd(*ppszDst, *pcbDst);
+    char   *pszDstOrg = *ppszDst;
+    size_t  cbDst     = *pcbDst;
+    char   *pszDst    = RTStrEnd(pszDstOrg, cbDst);
     AssertReturn(pszDst, VERR_INVALID_PARAMETER);
-    *pcbDst -= pszDst - *ppszDst;
     *ppszDst = pszDst;
+    *pcbDst  = cbDst - (pszDst - pszDstOrg);
 
     return RTStrCopyP(ppszDst, pcbDst, pszSrc);
 }