diff options
Diffstat (limited to 'theories/Classes/Init.v')
| -rw-r--r-- | theories/Classes/Init.v | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/theories/Classes/Init.v b/theories/Classes/Init.v index e5f951d0..5df7a4ed 100644 --- a/theories/Classes/Init.v +++ b/theories/Classes/Init.v @@ -13,12 +13,18 @@ Institution: LRI, CNRS UMR 8623 - UniversitĂcopyright Paris Sud 91405 Orsay, France *) -(* $Id: Init.v 11282 2008-07-28 11:51:53Z msozeau $ *) +(* $Id: Init.v 11709 2008-12-20 11:42:15Z msozeau $ *) (* Ltac typeclass_instantiation := typeclasses eauto || eauto. *) Tactic Notation "clapply" ident(c) := - eapply @c ; eauto with typeclass_instances. + eapply @c ; typeclasses eauto. + +(** Hints for the proof search: these combinators should be considered rigid. *) + +Require Import Coq.Program.Basics. + +Typeclasses Opaque id const flip compose arrow impl iff. (** The unconvertible typeclass, to test that two objects of the same type are actually different. *) @@ -27,8 +33,8 @@ Class Unconvertible (A : Type) (a b : A). Ltac unconvertible := match goal with - | |- @Unconvertible _ ?x ?y => conv x y ; fail 1 "Convertible" - | |- _ => apply Build_Unconvertible + | |- @Unconvertible _ ?x ?y => unify x y with typeclass_instances ; fail 1 "Convertible" + | |- _ => eapply Build_Unconvertible end. Hint Extern 0 (@Unconvertible _ _ _) => unconvertible : typeclass_instances.
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