diff options
Diffstat (limited to 'libcxx/src/ios.cpp')
| -rw-r--r-- | libcxx/src/ios.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libcxx/src/ios.cpp b/libcxx/src/ios.cpp index d58827fa1255..a727855c4655 100644 --- a/libcxx/src/ios.cpp +++ b/libcxx/src/ios.cpp @@ -195,6 +195,10 @@ void ios_base::register_callback(event_callback fn, int index) { } ios_base::~ios_base() { + // Avoid UB when not properly initialized. See ios_base::ios_base for + // more information. + if (!__loc_) + return; __call_callbacks(erase_event); locale& loc_storage = *reinterpret_cast<locale*>(&__loc_); loc_storage.~locale(); |