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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
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
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
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
Whats the difference between the atomic and nonatomic attributes? The last two are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a keyword in recent versions of llvm clang) Assuming that you are @synthesizing the method implementations, atomic vs non-atomic changes the generated code If you are writing your own setter getters, atomic nonatomic
R Error in x$ed : $ operator is invalid for atomic vectors Because $ does not work on atomic vectors Use [ or [[ instead From the help file for $: The default methods work somewhat differently for atomic vectors, matrices arrays and for recursive (list-like, see is recursive) objects $ is only valid for recursive objects, and is only discussed in the section below on recursive objects x[["ed"]] will work