From 9e51691285d08cd7184bb6ad072c097431a49acc Mon Sep 17 00:00:00 2001
From: Nikolaj Bjorner <nbjorner@microsoft.com>
Date: Mon, 29 Nov 2021 20:02:12 -0800
Subject: [PATCH] add virtual destructor

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
---
 src/tactic/user_propagator_base.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/tactic/user_propagator_base.h b/src/tactic/user_propagator_base.h
index dd09efa03..ba3768921 100644
--- a/src/tactic/user_propagator_base.h
+++ b/src/tactic/user_propagator_base.h
@@ -26,6 +26,8 @@ namespace user_propagator {
 
     class core {
     public:
+
+        virtual ~core() {}
         
         virtual void user_propagate_init(
             void* ctx,