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authorherbelin2009-07-08 12:30:19 +0000
committerherbelin2009-07-08 12:30:19 +0000
commitc221e1bebd5fabe7c5995c9306b96596026de047 (patch)
tree53280496702a666b4fc6f98dbf7499afccc80ab4 /test-suite
parentcb0a4dbc77da083e866e88523dc30244b1e25117 (diff)
Reactivation of pattern unification of evars in apply unification, in
agreement with wish #2117 (pattern unification of evars remained deactivated for 3 years because of incompatibilities with eauto [see commit 9234]; thanks to unification flags, it can be activated for apply w/o changing eauto). Also add test for bug #2123 (see commit 12228). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12229 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'test-suite')
-rw-r--r--test-suite/bugs/closed/shouldsucceed/2123.v11
-rw-r--r--test-suite/success/apply.v7
2 files changed, 18 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/shouldsucceed/2123.v b/test-suite/bugs/closed/shouldsucceed/2123.v
new file mode 100644
index 0000000000..422a2c126e
--- /dev/null
+++ b/test-suite/bugs/closed/shouldsucceed/2123.v
@@ -0,0 +1,11 @@
+(* About the detection of non-dependent metas by the refine tactic *)
+
+(* The following is a simplification of bug #2123 *)
+
+Parameter fset : nat -> Set.
+Parameter widen : forall (n : nat) (s : fset n), { x : fset (S n) | s=s }.
+Goal forall i, fset (S i).
+intro.
+refine (proj1_sig (widen i _)).
+
+
diff --git a/test-suite/success/apply.v b/test-suite/success/apply.v
index 4f47702c60..f95352b650 100644
--- a/test-suite/success/apply.v
+++ b/test-suite/success/apply.v
@@ -277,3 +277,10 @@ try eapply ex_intro.
trivial.
Qed.
+(* Check pattern-unification on evars in apply unification *)
+
+Lemma evar : exists f : nat -> nat, forall x, f x = 0 -> x = 0.
+Proof.
+eexists; intros x H.
+apply H.
+Qed.