keep constants

CPMpy · Jan 12, 2024 · d187b53 · d187b53
1 parent 2c66904
commit d187b53
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cpmpy/transformations/flatten_model.py b/cpmpy/transformations/flatten_model.py
@@ -354,7 +354,7 @@ def get_or_make_boolvar(expr):
     """
     isbool = is_boolexpr(expr)
     if __is_flat_var(expr):
-        if isbool:
+        if isbool or is_num(expr):
             return (expr, [])
         else:
             bv = _BoolVarImpl()