May 8, 2015 · In the Effective Java book, it states: The language specification guarantees that reading or writing a variable is atomic unless the variable is of type long or double [JLS, 17.4.7]. What do...

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. …

Jan 23, 2025 · At least atomic<shared_ptr<T>> gives you per-object locking, instead of a single lock for the whole stack. So multiple threads can be waiting for different locks if multiple pops start in parallel.

Apr 30, 2016 · I remember I came across certain types in the C language called atomic types, but we have never studied them. So, how do they differ from regular types like int,float,double,long etc., and …

Oct 20, 2014 · Why the standard make that difference? It seems as both designate, in the same way, an atomic type.

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 …

reference assignment is atomic so why is Interlocked.Exchange (ref Object, Object) needed? Reference assignment is atomic. Interlocked.Exchange does not do only reference assignment. It does a read …

Nov 22, 2023 · A std::atomic<int> is not an int, and it isn't required to contain one. Even in the likely case that the object representations of them are the same, it is a strict aliasing violation to reinterpret_cast …

Aug 7, 2014 · i++ is probably not atomic in Java because atomicity is a special requirement which is not present in the majority of the uses of i++. That requirement has a significant overhead: there is a …

When is_lock_free returns false, it means that atomic has a lock, and equivalent performance with code with locks. This does not mean that you should always use atomic instead of mutex-based approach, …