commit 2e80d01fa7dc36c5f2533a363c6c0680f7896dc5
author Marshall Clow <mclow.lists@gmail.com> Wed Aug 14 20:54:56 2019 +0000
committer Marshall Clow <mclow.lists@gmail.com> Wed Aug 14 20:54:56 2019 +0000
tree ad3e9bc3d415559af00cb828da139cc9b85234e9
parent 376f64225288df2565e06e92d53d71f54cebf8c2

Fix thread comparison by making sure we never pass our special 'not a thread' value to the underlying implementation. Fixes PR#42918.

llvm-svn: 368916

libcxx/src/mutex.cpp

diff --git a/libcxx/src/mutex.cpp b/libcxx/src/mutex.cpp
index ddd36b4..1827857 100644
--- a/libcxx/src/mutex.cpp
+++ b/libcxx/src/mutex.cpp
@@ -181,7 +181,7 @@
     unique_lock<mutex> lk(__m_);
     if (--__count_ == 0)
     {
-        __id_.reset();
+        __id_.__reset();
         lk.unlock();
         __cv_.notify_one();
     }