c++ - What exactly is std::atomic? - Stack Overflow
Aug 13, 2015 · Objects of atomic types are the only C++ objects that are free from data races; that is, if one thread writes to an atomic object while another thread reads from it, the behavior is well-defined. …
Is there a difference between the _Atomic type qualifier and type ...
Oct 20, 2014 · Why the standard make that difference? It seems as both designate, in the same way, an atomic type.
c++ - How to use std::atomic efficiently - Stack Overflow
Jan 6, 2012 · 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...
language agnostic - Atomic Instruction - Stack Overflow
Mar 2, 2014 · Some machine instructions are intrinsically atomic - for example, reading and writing properly aligned values of the native processor word size is atomic on many architectures. This …
atomic operations and atomic transactions - Stack Overflow
Mar 27, 2013 · 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?
When should std::atomic_compare_exchange_strong be used?
Jul 29, 2013 · There are two atomic CAS operations in C++11: atomic_compare_exchange_weak and atomic_compare_exchange_strong. According to cppreference: The weak forms of the functions are …
How to Use std::atomic_bool or std::atomic_flag? - Stack Overflow
why ? std::atomic_flag has a harder interface, it is designed as a building block for mutexes and spinlocks. for an atomic bool you should use std::atomic_bool. and before C++20 you couldn't even …
What are atomic types in the C language? - Stack Overflow
Apr 30, 2016 · 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 operations in Java are considered atomic? - Stack Overflow
Jan 21, 2011 · 7 In Java, the reading and writing of 32-bit or smaller quantities are guaranteed to be atomic. By atomic, we mean each action takes place in one step and cannot be interrupted. Thus, …
Are volatile reads and writes atomic on Windows+VisualC?
Aug 10, 2011 · Yes they are atomic on windows/vc++ (Assuming you meet alignment requirements etc or course) However for a lock you would need an atomic test and set, or compare and exchange …