commit 11eb4b3e19d545162e90d2f89026cb8d45c564cb
author Arthur O'Dwyer <arthur.j.odwyer@gmail.com> Tue Apr 20 11:25:37 2021 -0400
committer Copybara-Service <copybara-worker@google.com> Fri Apr 23 15:25:36 2021 -0700
tree e7c53fbcf5782d978b78c91a7eb333ea8fc231fc
parent 36f0ad0c6e5e51ce87c84bda18b6abf1378f5c7f

Implement N3644 "Null Forward Pointers" in _LIBCPP_DEBUG mode.

This functionality is tested in std/containers/sequences/vector/iterators.pass.cpp
(and similarly for all containers, but vector is the only one to be tested that
uses debug iterators).

Differential Revision: https://reviews.llvm.org/D100881

GitOrigin-RevId: bbc6893b11cd85147543e84351176da7c3869cc4

src/debug.cpp

diff --git a/src/debug.cpp b/src/debug.cpp
index 20055fc..dd5963f 100644
--- a/src/debug.cpp
+++ b/src/debug.cpp
@@ -438,7 +438,7 @@
     __i_node* j = __find_iterator(__j);
     __c_node* ci = i != nullptr ? i->__c_ : nullptr;
     __c_node* cj = j != nullptr ? j->__c_ : nullptr;
-    return ci != nullptr && ci == cj;
+    return ci == cj;
 }
 
 void