From 784d82dc1a709c4c262665a4cd4eb0b1bd1487a0 Mon Sep 17 00:00:00 2001
From: Matthieu Sozeau
Date: Mon, 13 Jun 2016 18:36:58 +0200
Subject: Univs: fix for part #2 of bug #4816.

Check that the polymorphic status of everything that
is parameterized in nested sections is coherent.
---
 test-suite/bugs/closed/4816.v | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 test-suite/bugs/closed/4816.v

(limited to 'test-suite/bugs')

diff --git a/test-suite/bugs/closed/4816.v b/test-suite/bugs/closed/4816.v
new file mode 100644
index 0000000000..ef79b9869b
--- /dev/null
+++ b/test-suite/bugs/closed/4816.v
@@ -0,0 +1,18 @@
+Section foo.
+Polymorphic Universes A B.
+Constraint A <= B.
+End foo.
+(* gives an anomaly Universe undefined *)
+
+or even, a refinement of #4503:
+Require Coq.Classes.RelationClasses.
+
+Class PreOrder (A : Type) (r : A -> A -> Type) : Type :=
+{ refl : forall x, r x x }.
+
+Section foo.
+  Polymorphic Universes A.
+  Section bar.
+    Context {A : Type@{A}} {rA : A -> A -> Prop} {PO : PreOrder A rA}.
+  End bar.
+End foo.
\ No newline at end of file
-- 
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