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(* Check or-patterns *)
(* Non-interference with Numbers divisibility. *)
Reserved Notation "( p | q )" (at level 0).
Definition g x :=
match x with ((((1 as x),_) | (_,x)), ((_,(2 as y)) | (y,_))) => (x,y) end.
Check (refl_equal _ : g ((1,2),(3,4)) = (1,3)).
Check (refl_equal _ : g ((1,4),(3,2)) = (1,2)).
Fixpoint max (n m:nat) {struct m} : nat :=
match n, m with
| S n', S m' => S (max n' m')
| 0, p | p, 0 => p
end.
(* Check bug #1477 *)
Inductive I : Set :=
| A : nat -> nat -> I
| B : nat -> nat -> I.
Definition foo (x:I) : nat :=
match x with
| A a b | B b a => S b
end.
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