1 files changed, 2 insertions, 1 deletions
diff --git a/ext/fts3/fts3_snippet.c b/ext/fts3/fts3_snippet.c
index d54a787..aa8779f 100644
--- a/ext/fts3/fts3_snippet.c
+++ b/ext/fts3/fts3_snippet.c
@@ -128,7 +128,7 @@ struct StrBuffer {
 */
 static void fts3GetDeltaPosition(char **pp, int *piPos){
   int iVal;
-  *pp += sqlite3Fts3GetVarint32(*pp, &iVal);
+  *pp += fts3GetVarint32(*pp, &iVal);
   *piPos += (iVal-2);
 }
 
@@ -504,6 +504,7 @@ static int fts3StringAppend(
     pStr->z = zNew;
     pStr->nAlloc = nAlloc;
   }
+  assert( pStr->z!=0 && (pStr->nAlloc >= pStr->n+nAppend+1) );
 
   /* Append the data to the string buffer. */
   memcpy(&pStr->z[pStr->n], zAppend, nAppend);