From 6623b3da7d6851ccf42186871c7e325abc5c250a Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Thu, 6 Jun 2019 15:35:31 +0200
Subject: [PATCH 1/1] we use tag 0 so let's not use a NonZero type

---
 ralf/_posts/2019-04-30-stacked-borrows-2.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ralf/_posts/2019-04-30-stacked-borrows-2.md b/ralf/_posts/2019-04-30-stacked-borrows-2.md
index 5731826..669d49d 100644
--- a/ralf/_posts/2019-04-30-stacked-borrows-2.md
+++ b/ralf/_posts/2019-04-30-stacked-borrows-2.md
@@ -80,7 +80,7 @@ pub struct Stack {
 {% endhighlight %}
 The *tag* is also simpler than it was before: there are no longer separate tags for mutable and shared references.
 {% highlight rust %}
-pub type PtrId = NonZeroU64;
+pub type PtrId = u64;
 pub enum Tag {
     Tagged(PtrId),
     Untagged,
-- 
2.30.2