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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
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 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
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
difference between standards atomic bool and atomic flag The primary difference besides the lock-free guarantee is: std::atomic_flag does not provide load or store operations and when should I use which? Usually, you will want to use std::atomic<bool> when you need an atomic boolean variable std::atomic_flag is a low level structure that can be used to implement custom atomic structures
How are atomic operations implemented at a hardware level? There are a few low level instructions used locking and atomic operations These are used at the OS level to manipulate small chunks of memory to create things like mutexes and semaphores, these are literally one or two bytes of memory that need to have atomic, synchronized operations performed on them
c++ - What exactly is std::atomic? - Stack Overflow I understand that std::atomic lt; gt; 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