Fortunately, the value initializing constructor of an integral atomic is constexpr, so the above leads to constant initialization 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] 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.
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? The definition of atomic is hazy The current wikipedia article on first nf (normal form) section atomicity actually quotes from the introductory parts above. Why the standard make that difference It seems as both designate, in the same way, an atomic type.
Meaning that as long as you don't mutate the shared_ptr across multiple threads, you are ok Do note that copying a shared_ptr only mutates the control block, and not the shared_ptr itself. 0 since std::atomic_init has been deprecated in c++20, here is a reimplementation which does not raise deprecation warnings, if you for some reason want to keep doing this. 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
If you are writing your own setter/getters, atomic/nonatomic.
OPEN
