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c++ - Are +=, |=, &= etc atomic? - Stack Overflow
2 ++ might be atomic on your compiler/platform, but in the c++ specs it is not defined to be atomic. If you want to make sure to modify a value in an atomic way, you should use the appropiate methods, like Interlocked* on windows. Same for all the other routines. If you want atomic operations, you should use the appropiate calls, not the ...
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...
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.
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++ - What exactly is std::atomic? - Stack Overflow
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 object atomic? For example if
atomic operations and atomic transactions - Stack Overflow
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?
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...
Is there a difference between the _Atomic type qualifier and type ...
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), where T is a type, as a type specifier equivalent to _Atomic T. Thus, _Atomic(T) x, y; declares x and y with the same type, even if T is a pointer type. This allows for trivial C++0x compatibility with a C++ only ...
How to Use std::atomic_bool or std::atomic_flag? - Stack Overflow
why ? std::atomic_flag has a harder interface, it is designed as a building block for mutexes and spinlocks. for an atomic bool you should use std::atomic_bool. and before C++20 you couldn't even read or set std::atomic_flag without doing an RMW with test_and_set which is a slow operation, which made std::atomic_flag slower than std::atomic ...
In C#, what does "atomic" mean? - Stack Overflow
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?
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