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] But atomic to what extent To my understanding an operation can be atomic What exactly is meant by making an object atomic The definition of atomic is hazy The current wikipedia article on first nf (normal form) section atomicity actually quotes from the introductory parts above.
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. You can declare an atomic integer like this The _atomic keyword can be used in the form _atomic(t), where t is a type, as a type specifier equivalent to _atomic t
This allows for trivial c++0x compatibility with a c++ only. 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. 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.
The last two are identical Atomic is the default behavior (note that it is not actually a keyword Assuming that you are @synthesizing the method implementations, atomic vs 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?
OPEN
