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author | 2013-05-14 18:37:42 +0000 | |
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committer | 2013-05-14 18:37:42 +0000 | |
commit | a8377ede7e0e1e6d2e39d16050fbe6fddc8158d4 (patch) | |
tree | 40419ebae1c5be08874096f884ce709c61634e4b /test-suite/success | |
parent | 4150e9127fab042cb5096585e2da9cb6eeb57983 (diff) |
Fixing a regression in unification introduced in r16205 (error raised
by solve_candidates was not anymore handled at the expected time).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16524 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'test-suite/success')
-rw-r--r-- | test-suite/success/Case20.v | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test-suite/success/Case20.v b/test-suite/success/Case20.v new file mode 100644 index 000000000..67eebf723 --- /dev/null +++ b/test-suite/success/Case20.v @@ -0,0 +1,35 @@ +(* Example taken from RelationAlgebra *) +(* Was failing from r16205 up to now *) + +Require Import BinNums. + +Section A. + +Context (A:Type) {X: A} (tst:A->Type) (top:forall X, X). + +Inductive v: (positive -> A) -> Type := +| v_L: forall f', v f' +| v_N: forall f', + v (fun n => f' (xO n)) -> + (positive -> tst (f' xH)) -> + v (fun n => f' (xI n)) -> v f'. + +Fixpoint v_add f' (t: v f') n: (positive -> tst (f' n)) -> v f' := + match t in (v o) return ((positive -> (tst (o n))) -> v o) with + | v_L f' => + match n return ((positive -> (tst (f' n))) -> v f') with + | xH => fun x => v_N _ (v_L _) x (v_L _) + | xO n => fun x => v_N _ + (v_add (fun n => f' (xO n)) (v_L _) n x) (fun _ => top _) (v_L _) + | xI n => fun x => v_N _ + (v_L _) (fun _ => top _) (v_add (fun n => f' (xI n)) (v_L _) n x) + end + | v_N f' l y r => + match n with + | xH => fun x => v_N _ l x r + | xO n => fun x => v_N _ (v_add (fun n => f' (xO n)) l n x) y r + | xI n => fun x => v_N _ l y (v_add (fun n => f' (xI n)) r n x) + end + end. + +End A. |