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

    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...

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

    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. …

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

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

  4. 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 we have a buff...

  5. 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 member of a …

  6. 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 with only a …

  7. When should std::atomic_compare_exchange_strong be used?

    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 …

  8. atomic operations and atomic transactions - Stack Overflow

    Mar 27, 2013 · Can someone explain to me, whats the difference between atomic operations and atomic transactions? Its seems to me that these two are the same thing.Is that correct?

  9. What operations in Java are considered atomic? - Stack Overflow

    Jan 21, 2011 · In Java, the reading and writing of 32-bit or smaller quantities are guaranteed to be atomic. By atomic, we mean each action takes place in one step and cannot be interrupted. Thus, …

  10. In C#, what does "atomic" mean? - Stack Overflow

    Aug 2, 2016 · I read this in the book C# 6.0 and the .NET 4.6 framework: “assignments and simple arithmetic operations are not atomic”. So, what does it exactly mean?