Aug 13, 2015 · Objects of atomic types are the only C++ objects that are free from data races; that is, if one thread writes to an atomic object while another thread reads from it, the behavior is well-defined. …

Sep 24, 2010 · 5 Boolean primitive type is atomic for write and read operations, volatile guarantees the happens-before principle. So if you need a simple get () and set () then you don't need the …

Jun 19, 2025 · 2 We are currently evaluating 128-bit atomic operation support across platforms and compilers, and I wanted to confirm the level of support available in Clang specifically. Our reference …

Mar 26, 2022 · For simple copies, some types are naturally atomic (if their size is <= the processor width, or 4 bytes, for example, for most 32-bit MCUs), and you won't need to disable and re-enable …

Aug 18, 2021 · MongoInvalidArgumentError: Update document requires atomic operators Asked 4 years, 5 months ago Modified 3 years, 1 month ago Viewed 51k times

Jun 4, 2014 · The definition of atomic is hazy; a value that is atomic in one application could be non-atomic in another. For a general guideline, a value is non-atomic if the application deals with only a …

Jul 29, 2013 · There are two atomic CAS operations in C++11: atomic_compare_exchange_weak and atomic_compare_exchange_strong. According to cppreference: The weak forms of the functions are …

The reason num++ appears to be atomic is because on x86 machines, incrementing a 32-bit integer is, in fact, atomic (assuming no memory retrieval takes place). But this is neither guaranteed by the c++ …

Mar 21, 2016 · There are several questions on SO dealing with atomic, and other that deal with std::condition_variable. But my question if my use below is correct? Three threads, one ctrl thread …

Sep 18, 2023 · Fortunately, the value initializing constructor of an integral atomic is constexpr, so the above leads to constant initialization. Otherwise you'd want to make it -say- a static member of a …