http://www.bing.com:80/search?q=Atomic+Model+LabSearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Atomic+Model+LabCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://stackoverflow.com/questions/15054086/what-does-atomic-mean-in-programming22 Atomic vs. Non-Atomic Operations "An operation acting on shared memory is atomic if it completes in a single step relative to other threads. When an atomic store is performed on a shared memory, no other thread can observe the modification half-complete.Thu, 02 Apr 2026 09:06:00 GMThttps://stackoverflow.com/questions/31978324/what-exactly-is-stdatomicObjects 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. In addition, accesses to atomic objects may establish inter-thread synchronization and order non-atomic memory accesses as specified by std::memory_order.Tue, 31 Mar 2026 21:40:00 GMThttps://stackoverflow.com/questions/71866535/which-types-on-a-64-bit-computer-are-naturally-atomic-in-gnu-c-and-gnu-c-mI had a 25-hr debugging marathon in < 2 days and then wrote this answer here. See also the bottom of this question for more info. and documentation on 8-bit variables having naturally atomic writes and naturally atomic reads for AVR 8-bit microcontrollers when compiled with the gcc compiler which uses the AVR-libc library.Mon, 30 Mar 2026 17:16:00 GMThttps://stackoverflow.com/questions/36955884/what-are-atomic-types-in-the-c-languageI 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...Thu, 02 Apr 2026 09:20:00 GMThttps://stackoverflow.com/questions/79381627/the-gist-behind-atomic-shared-pointerAt least atomic<shared_ptr<T>> gives you per-object locking, instead of a single lock for the whole stack. So multiple threads can be waiting for different locks if multiple pops start in parallel.Thu, 02 Apr 2026 20:33:00 GMThttps://stackoverflow.com/questions/79671752/cross-platform-support-for-128-bit-atomic-operations-in-clang-compare-and-swapWe are currently evaluating 128-bit atomic operation support across platforms and compilers, and I wanted to confirm the level of support available in Clang specifically. Our reference point is theWed, 01 Apr 2026 01:29:00 GMThttps://stackoverflow.com/questions/25199838/understanding-stdatomiccompare-exchange-weak-in-c11In addition (and more importantly), note that std::atomic must support all operations for all possible data types, so even if you declare a ten million byte struct, you can use compare_exchange on this.Wed, 01 Apr 2026 10:04:00 GMThttps://stackoverflow.com/questions/4944771/stdatomic-compare-exchange-weak-vs-compare-exchange-strong@CygnusX1 yes, that is covered in the C++ standard by the rest of the note, which OP left out of the quote: "When a compare-and-exchange is in a loop, the weak version will yield better performance on some platforms. When a weak compare-and-exchange would require a loop and a strong one would not, the strong one is preferable." The corollary is that when you're going to loop anyway, there's no ...Tue, 31 Mar 2026 07:14:00 GMThttps://stackoverflow.com/questions/63810298/what-is-the-difference-between-load-store-relaxed-atomic-and-normal-variable11 The difference is that a normal load/store is not guaranteed to be tear-free, whereas a relaxed atomic read/write is. Also, the atomic guarantees that the compiler doesn't rearrange or optimise-out memory accesses in a similar fashion to what volatile guarantees. (Pre-C++11, volatile was an essential part of rolling your own atomics.Sun, 29 Mar 2026 09:39:00 GMThttps://stackoverflow.com/questions/16320838/when-do-i-really-need-to-use-atomicbool-instead-of-boolYou need atomic<bool> to avoid race-conditions. A race-condition occurs if two threads access the same memory location, and at least one of them is a write operation. If your program contains race-conditions, the behavior is undefined.Thu, 02 Apr 2026 07:12:00 GMT