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. …

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 · Atomic type specifiers :-:) Syntax: _Atomic ( type-name ); You can declare an atomic integer like this: _Atomic(int) counter; The _Atomic keyword can be used in the form _Atomic(T), …

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.

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 …

@CygnusX1 yes, that is covered in the C++ standard by the rest of the note, which OP left out of the quote: "When a compare-and-exchange is in a loop, the weak version will yield better performance …

Oct 8, 2012 · On all modern processors, you can assume that reads and writes of naturally aligned native types are atomic. As long as the memory bus is at least as wide as the type being read or …

Sep 13, 2017 · atomic integer is a user mode object there for it's much more efficient than a mutex which runs in kernel mode. The scope of atomic integer is a single application while the scope of the …

Jul 11, 2011 · SQL transactions, like transactions on all database platforms, put the data in isolation to cover the entire ACID acronym (atomic, consistent, isolated and durable).