Fix incorrect usage of __libcpp_mutex_trylock. Patch from Andrey Khalyavin

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302129 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-04 07:45:09 +00:00
parent b8577430ea
commit 474dfc389d
1 changed files with 1 additions and 1 deletions
--- a/src/memory.cpp
+++ b/src/memory.cpp
@@ -154,7 +154,7 @@ __sp_mut::lock() _NOEXCEPT
 {
    auto m = static_cast<__libcpp_mutex_t*>(__lx);
    unsigned count = 0;
-    while (__libcpp_mutex_trylock(m) != 0)
+    while (!__libcpp_mutex_trylock(m))
    {
        if (++count > 16)
        {