diff options
Diffstat (limited to 'libcxx/include/latch')
| -rw-r--r-- | libcxx/include/latch | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/libcxx/include/latch b/libcxx/include/latch index 2cc9222baadc..85936750b4c1 100644 --- a/libcxx/include/latch +++ b/libcxx/include/latch @@ -40,17 +40,19 @@ namespace std */ +#include <__assert> // all public C++ headers provide the assertion handler #include <__availability> #include <__config> #include <atomic> +#include <limits> #include <version> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header +# pragma GCC system_header #endif #ifdef _LIBCPP_HAS_NO_THREADS -# error <latch> is not supported on this single threaded system +# error "<latch> is not supported since libc++ has been configured without support for threads." #endif _LIBCPP_PUSH_MACROS @@ -91,10 +93,9 @@ public: inline _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void wait() const { - auto const __test_fn = [=]() -> bool { + __cxx_atomic_wait(&__a.__a_, [&]() -> bool { return try_wait(); - }; - __cxx_atomic_wait(&__a.__a_, __test_fn); + }); } inline _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void arrive_and_wait(ptrdiff_t __update = 1) |