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What are atomic operations for newbies? - Stack Overflow 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 computer can be free to do other things as long as they don't affect (or are affected by) the result of what upsert is trying to do
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++ - 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
When do I need to use AtomicBoolean in Java? - Stack Overflow The java util concurrent atomic package overview gives you a good high-level description of what the classes in this package do and when to use them I'd also recommend the book Java Concurrency in Practice by Brian Goetz
When do I really need to use atomic lt;bool gt; instead of bool? 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 your program contains race-conditions, the behavior is undefined
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
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