sxtrdb_resetcur() added;

include/sxt/rdb.h

@@ -142,6 +142,9 @@ void sxtrdb_setflags(sxtrdb_t *, int);
 /* exchange flags for raw buff */
 void sxtrdb_exflags(sxtrdb_t *, int);
 
+/* reset current pointer */
+void sxtrdb_resetcur(sxtrdb_t *);
+
 /* reset all the flags */
 #define sxtrdb_flagsreset(a) sxtrdb_exflags((a), 0)
 

sxt/rdb.c

@@ -662,6 +662,15 @@ void *sxtrdb_rdatacur(sxtrdb_t *b)
   return (void *)(b->raw + b->curr);
 }
 
+/* reset current pointer */
+void sxtrdb_resetcur(sxtrdb_t *b)
+{
+  if(!b || b->raw) return;
+  else b->curr = 0;
+
+  return;
+}
+
 /* set flags to the raw buffer */
 void sxtrdb_setflags(sxtrdb_t *b, int af)
 {