Fix Windows try_lock implementation

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292011 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-14 10:27:12 +00:00
parent 78463e748d
commit 30d12e372a
3 changed files with 15 additions and 14 deletions
--- a/src/mutex.cpp
+++ b/src/mutex.cpp
@@ -37,7 +37,7 @@ mutex::lock()
 bool
 mutex::try_lock() _NOEXCEPT
 {
-    return __libcpp_mutex_trylock(&__m_) == 0;
+    return __libcpp_mutex_trylock(&__m_);
 }

 void
@@ -83,7 +83,7 @@ recursive_mutex::unlock() _NOEXCEPT
 bool
 recursive_mutex::try_lock() _NOEXCEPT
 {
-    return __libcpp_recursive_mutex_trylock(&__m_) == 0;
+    return __libcpp_recursive_mutex_trylock(&__m_);
 }

 // timed_mutex