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c++ - What exactly is std::atomic? - Stack Overflow 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 In addition, accesses to atomic objects may establish inter-thread synchronization and order non-atomic memory accesses as specified by std::memory_order
c++ - How to implement an atomic counter - Stack Overflow 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 class that is wrapping this and put the initialization somewhere else
What does atomic mean in programming? - Stack Overflow 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
c++ - How to use std::atomic efficiently - Stack Overflow 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
sql - What is atomicity in dbms - Stack Overflow 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 part of the value Eg: The current Wikipedia article on First NF (Normal Form) section Atomicity actually quotes from the introductory parts above
What operations in Java are considered atomic? - Stack Overflow 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, when we have multithreaded applications, the read and write operations are thread-safe and need not be made synchronized For example, the following code is thread