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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.
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...
Is there a difference between the _Atomic type qualifier and type ...
Why the standard make that difference? It seems as both designate, in the same way, an atomic type.
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.
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 are atomic types in the C language? - Stack Overflow
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 what are...
When should std::atomic_compare_exchange_strong be used?
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 allowed to fail spurio...
.net - What operations are atomic in C#? - Stack Overflow
Is there a systematic way to know whether an operation in C# will be atomic or not? Or are there any general guidelines or rules of thumb?
Understanding std::atomic::compare_exchange_weak() in C++11
In addition (and more importantly), note that std::atomic must support all operations for all possible data types, so even if you declare a ten million byte struct, you can use compare_exchange on this.
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