LWG issue 2143: ios_base::xalloc should be thread-safe git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@192539 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/ios b/include/ios index 5c96a95..227e392 100644 --- a/include/ios +++ b/include/ios
@@ -216,6 +216,10 @@ #include <__locale> #include <system_error> +#if __has_feature(cxx_atomic) +#include <atomic> // for __xindex_ +#endif + #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #pragma GCC system_header #endif @@ -363,7 +367,11 @@ int* __index_; size_t __event_size_; size_t __event_cap_; +#if __has_feature(cxx_atomic) + static atomic<int> __xindex_; +#else static int __xindex_; +#endif long* __iarray_; size_t __iarray_size_; size_t __iarray_cap_;
