From eb478f8922e2cb0784b3ed693a1aa72f0136bbb7 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 29 Aug 2023 21:04:48 -0700
Subject: [PATCH] Fix zero sizing of Iter<T>

    ---- test_iter stdout ----
    thread 'test_iter' panicked at tests/test.rs:7:5:
    assertion `left == right` failed
      left: 0
     right: 8
    note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

    failures:
        test_iter
---
 src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lib.rs b/src/lib.rs
index 1953577..5efba3e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -246,6 +246,7 @@ document_iter! {
 mod void_iter {
     enum Void {}
 
+    #[repr(C, packed)]
     pub struct Iter<T>([*const T; 0], Void);
 
     unsafe impl<T> Send for Iter<T> {}