From afc986f741ffa937f318c2ed536f979ffa8651c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Steven=20Dee=20=28J=C5=8Dshin=29?= <git@wholezero.org>
Date: Tue, 25 Mar 2025 01:49:34 -0400
Subject: [PATCH] Fix shared_ptr<T>::owner_before (#1390)

`!(a < b)` is not the same as `b < a`.

I think I originally wrote it this way to avoid making weak_ptr a friend
of shared_ptr, but weak_ptr already is a friend.
---
 ctl/shared_ptr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ctl/shared_ptr.h b/ctl/shared_ptr.h
index df3865377..c387f2198 100644
--- a/ctl/shared_ptr.h
+++ b/ctl/shared_ptr.h
@@ -349,7 +349,7 @@ class shared_ptr
     template<typename U>
     bool owner_before(const weak_ptr<U>& r) const noexcept
     {
-        return !r.owner_before(*this);
+        return rc < r.rc;
     }
 
   private: