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  1. c++ - How to implement an atomic counter - Stack Overflow

    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 …

  2. What does "atomic" mean in programming? - Stack Overflow

    May 8, 2015 · 21 Atomic vs. Non-Atomic Operations "An operation acting on shared memory is atomic if it completes in a single step relative to other threads. When an atomic store is …

  3. c++ - What exactly is std::atomic? - Stack Overflow

    Aug 13, 2015 · I understand that std::atomic<> is an atomic object. But atomic to what extent? To my understanding an operation can be atomic. What exactly is meant by making an …

  4. Is there a difference between the _Atomic type qualifier and type ...

    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 …

  5. When do I really need to use atomic<bool> instead of bool?

    May 1, 2013 · You need atomic<bool> to avoid race-conditions. A race-condition occurs if two threads access the same memory location, and at least one of them is a write operation. If …

  6. c++ - How to use std::atomic efficiently - Stack Overflow

    Jan 6, 2012 · std::atomic is new feature introduced by c++11 but I can't find much tutorial on how to use it correctly. So are the following practice common and efficient? One practice I used is …

  7. sql - What is atomicity in dbms - Stack Overflow

    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 …

  8. What are atomic operations for newbies? - Stack Overflow

    Sep 6, 2018 · Everything works. Note that "atomic" is contextual: in this case, the upsert operation only needs to be atomic with respect to operations on the answers table in the database; the …

  9. What are atomic types in the C language? - Stack Overflow

    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 …

  10. What's the difference between the atomic and nonatomic attributes?

    Feb 26, 2009 · The last two are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a …