1 files changed, 10 insertions, 1 deletions
diff --git a/stringbuf.h b/stringbuf.h
index c8359ab8..5f9a0879 100755
--- a/stringbuf.h
+++ b/stringbuf.h
@@ -72,13 +72,22 @@ rsRetVal rsCStrTruncate(rsCStrObj *pThis, int nTrunc);
 rsRetVal rsCStrTrimTrailingWhiteSpace(rsCStrObj *pThis);
 
 /**
- * Append a string to the buffer.
+ * Append a string to the buffer. For performance reasons,
+ * use rsCStrAppenStrWithLen() if you know the length.
  *
  * \param psz pointer to string to be appended. Must not be NULL.
  */
 rsRetVal rsCStrAppendStr(rsCStrObj *pThis, char* psz);
 
 /**
+ * Append a string to the buffer.
+ *
+ * \param psz pointer to string to be appended. Must not be NULL.
+ * \param iStrLen the length of the string pointed to by psz
+ */
+rsRetVal rsCStrAppendStrWithLen(rsCStrObj *pThis, char* psz, size_t iStrLen);
+
+/**
  * Set a new allocation incremet. This will influence
  * the allocation the next time the string will be expanded.
  * It can be set and changed at any time. If done immediately