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[hcoop/zz_old/portal.git] / balance.sig

diff --git a/balance.sig b/balance.sig
index 6eb3349..2ce2b47 100644 (file)
--- a/balance.sig
+++ b/balance.sig
@@ -8,8 +8,13 @@ sig
     val deleteBalance : int -> unit
     val listBalances : unit -> balance list
     val listOwnedBalances : unit -> balance list
+    val listUnownedBalances : unit -> balance list
     val listBalanceUsers : int -> Init.user list
+    val listNegativeOwnedBalances : unit -> balance list
 
     val validBalanceName : string -> bool
     val balanceNameToId : string -> int option
+
+    val sumOwnedBalances : unit -> real
+    val isNegative : balance -> bool
 end