diff options
author | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2009-10-30 14:18:34 +0000 |
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committer | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2009-10-30 14:18:34 +0000 |
commit | b8018319137599b5809bcce0aafca2ecf96b4bf9 (patch) | |
tree | 0f1c2671bca0eaa189354b8b845db5c98f0c0a1d /test-suite/success/evars.v | |
parent | 4da1d9ee92f6764e8dee236730652391323a2ec5 (diff) |
Attempt to capture on time unification errors for "with" bindings.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12450 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'test-suite/success/evars.v')
-rw-r--r-- | test-suite/success/evars.v | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/test-suite/success/evars.v b/test-suite/success/evars.v index 3d3b3b9ef..6423ad14e 100644 --- a/test-suite/success/evars.v +++ b/test-suite/success/evars.v @@ -213,10 +213,11 @@ Goal True. set (p:=fun j => j (or_intror _ (fun a:True => j (or_introl _ a)))) || idtac. Abort. -(* remark: the following example does not succeed any longer in 8.2 because, - the algorithm is more general and does exclude a solution that it should - exclude for typing reason. Handling of types and backtracking is still to - be done +(* Remark: the following example stopped succeeding at some time in + the development of 8.2 but it works again (this was because 8.2 + algorithm was more general and did not exclude a solution that it + should have excluded for typing reason; handling of types and + backtracking is still to be done) *) Section S. Variables A B : nat -> Prop. @@ -224,4 +225,16 @@ Goal forall x : nat, A x -> B x. refine (fun x H => proj2 (_ x H) _). Abort. End S. -*) + +(* Check that constraints are taken into account by tactics that instantiate *) + +Lemma inj : forall n m, S n = S m -> n = m. +intros n m H. +eapply f_equal with (* should fail because ill-typed *) + (f := fun n => + match n return match n with S _ => nat | _ => unit end with + | S n => n + | _ => tt + end) in H +|| injection H. +Abort. |