diff options
Diffstat (limited to 'frontend/utilities.dcl')
| -rw-r--r-- | frontend/utilities.dcl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/frontend/utilities.dcl b/frontend/utilities.dcl index 664375b..a513a36 100644 --- a/frontend/utilities.dcl +++ b/frontend/utilities.dcl @@ -89,6 +89,14 @@ where fold_st2 xs [] st = abort ("fold_st2: first argument list contains more elements") +unsafeFold2St op l1 l2 st + :== ufold_st2 l1 l2 st +where + ufold_st2 [x : xs] [y : ys] st + = op x y (ufold_st2 xs ys st) + ufold_st2 _ _ st + = st + // foldSt :: !(.a -> .(.st -> .st)) ![.a] !.st -> .st foldSt op l st :== fold_st l st |