From 3b2f521c4608fe07b4563de27c6d44fcad5dce6f Mon Sep 17 00:00:00 2001
From: Nathaniel Filardo <nwf20@cl.cam.ac.uk>
Date: Sat, 3 Aug 2019 22:51:22 +0100
Subject: [PATCH] allocstats: assert count doesn't go negative

---
 src/mem/allocstats.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mem/allocstats.h b/src/mem/allocstats.h
index 7b68ae7..19388f1 100644
--- a/src/mem/allocstats.h
+++ b/src/mem/allocstats.h
@@ -34,6 +34,7 @@ namespace snmalloc
 
       void dec()
       {
+        assert(current > 0);
         current--;
       }