1 files changed, 5 insertions, 3 deletions

diff --git a/bank-eiffel/account.e b/bank-eiffel/account.e
index 7c127ec..fe9cc3b 100644
--- a/bank-eiffel/account.e
+++ b/bank-eiffel/account.e
@@ -23,13 +23,15 @@ feature -- Access
 
 feature {NONE} -- Implementation
 
-        creditline_range: TUPLE [min: like creditline; max: like creditline]
+        range: detachable TUPLE [min: REAL_64; max: REAL_64]
+
+        creditline_range: attached like range
                         -- min/max for creditline
 
-        interest_deposit_range: TUPLE [min: like interest_deposit; max: like interest_deposit]
+        interest_deposit_range: attached like range
                         -- min/max for interest_deposit
 
-        interest_debit_range: TUPLE [min: like interest_debit; max: like interest_debit]
+        interest_debit_range: attached like range
                         -- min/max for interest_debit
 
         authorized_signers: ARRAYED_SET [PERSON]