1 files changed, 3 insertions, 0 deletions
diff --git a/vmstk.h b/vmstk.h
index 30bb9009..206c7070 100644
--- a/vmstk.h
+++ b/vmstk.h
@@ -41,6 +41,9 @@ BEGINinterface(vmstk) /* name must also be changed in ENDinterface macro! */
 	rsRetVal (*Destruct)(vmstk_t **ppThis);
 	rsRetVal (*Push)(vmstk_t *pThis, var_t *pVar);
 	rsRetVal (*Pop)(vmstk_t *pThis, var_t **ppVar);
+	rsRetVal (*PopBool)(vmstk_t *pThis, var_t **ppVar);
+	rsRetVal (*PopNumber)(vmstk_t *pThis, var_t **ppVar);
+	rsRetVal (*PopString)(vmstk_t *pThis, var_t **ppVar);
 ENDinterface(vmstk)
 #define vmstkCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */