From 42f0842f3521add9d057818979a53f99107dcbff Mon Sep 17 00:00:00 2001
From: Ralf Jung <jung@mpi-sws.org>
Date: Mon, 25 Jun 2018 14:02:15 +0200
Subject: [PATCH] bump std++; test that we don't break setoid_rewrite
---
opam | 2 +-
tests/algebra.v | 16 ++++++++++++++++
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/opam b/opam
index 8d3353de4..1b429b576 100644
--- a/opam
+++ b/opam
@@ -11,5 +11,5 @@ install: [make "install"]
remove: ["rm" "-rf" "%{lib}%/coq/user-contrib/iris"]
depends: [
"coq" { (>= "8.7.1" & < "8.9~") | (= "dev") }
- "coq-stdpp" { (= "dev.2018-06-20.0.b2ca5d48") | (= "dev") }
+ "coq-stdpp" { (= "dev.2018-06-25.1.0eb9a89b") | (= "dev") }
]
diff --git a/tests/algebra.v b/tests/algebra.v
index 8505ef201..0ec719eac 100644
--- a/tests/algebra.v
+++ b/tests/algebra.v
@@ -8,3 +8,19 @@ Section tests.
Solve Obligations with solve_proper.
End tests.
+
+(** Check that [@Reflexive Prop ?r] picks the instance setoid_rewrite needs.
+ Really, we want to set [Hint Mode Reflexive] in a way that this fails, but
+ we cannot [1]. So at least we try to make sure the first solution found
+ is the right one, to not pay performance in the success case [2].
+
+ [1] https://github.com/coq/coq/issues/7916
+ [2] https://gitlab.mpi-sws.org/robbertkrebbers/coq-stdpp/merge_requests/38
+*)
+Lemma test_setoid_rewrite :
+ exists R, @Reflexive Prop R /\ R = iff.
+Proof.
+ eexists. split.
+ - apply _.
+ - reflexivity.
+Qed.
--
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