c++ - What exactly is std::atomic? - Stack Overflow
7 Feb 2026 at 11:07am
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. In addition, accesses to atomic objects may establish inter-thread synchronization and order non-atomic memory accesses as specified by std::memory_order.
What does "atomic" mean in programming? - Stack Overflow
8 Feb 2026 at 10:05pm
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...
Is incrementing an int effectively atomic in specific cases?
9 Feb 2026 at 4:31am
The reason num++ appears to be atomic is because on x86 machines, incrementing a 32-bit integer is, in fact, atomic (assuming no memory retrieval takes place). But this is neither guaranteed by the c++ standard, nor is it likely to be the case on a machine that doesn't use the x86 instruction set.
What are atomic types in the C language? - Stack Overflow
6 Feb 2026 at 7:34am
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...
Is there a difference between the _Atomic type qualifier and type ...
31 Jan 2026 at 11:26pm
Why the standard make that difference? It seems as both designate, in the same way, an atomic type.
sql - What is atomicity in dbms - Stack Overflow
9 Feb 2026 at 4:13pm
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.
c++ - Cross-platform Support for 128-bit Atomic Operations in Clang ...
6 Feb 2026 at 8:56pm
2 We 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 the Windows API function InterlockedCompareExchange128, which performs an atomic compare-and-swap on 128-bit values. We?re trying to determine:
linux - Is rename () atomic? - Stack Overflow
9 Feb 2026 at 6:33am
But rename() is still atomic in a very important sense: if you use it to overwrite a file, then you will end up with either the old or the new version and nothing else. [update: but as @jonas-wielicki points out in the comments, you need to make sure the file you are renaming actually has up-to-date contents, using fsync() and friends.]
How do I use atomicMax on floating-point values in CUDA?
5 Feb 2026 at 6:09am
As you can see from the atomic function documentation, only integer arguments are supported for atomicMax and 64 bit integer arguments are only supported on compute capability 3.5 devices.
When to use AtomicReference in Java? - Stack Overflow
9 Feb 2026 at 1:57pm
When do we use AtomicReference? Is it needed to create objects in all multithreaded programs? Provide a simple example where AtomicReference should be used.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
7 Feb 2026 at 11:07am
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. In addition, accesses to atomic objects may establish inter-thread synchronization and order non-atomic memory accesses as specified by std::memory_order.
What does "atomic" mean in programming? - Stack Overflow
8 Feb 2026 at 10:05pm
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...
Is incrementing an int effectively atomic in specific cases?
9 Feb 2026 at 4:31am
The reason num++ appears to be atomic is because on x86 machines, incrementing a 32-bit integer is, in fact, atomic (assuming no memory retrieval takes place). But this is neither guaranteed by the c++ standard, nor is it likely to be the case on a machine that doesn't use the x86 instruction set.
What are atomic types in the C language? - Stack Overflow
6 Feb 2026 at 7:34am
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...
Is there a difference between the _Atomic type qualifier and type ...
31 Jan 2026 at 11:26pm
Why the standard make that difference? It seems as both designate, in the same way, an atomic type.
sql - What is atomicity in dbms - Stack Overflow
9 Feb 2026 at 4:13pm
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.
c++ - Cross-platform Support for 128-bit Atomic Operations in Clang ...
6 Feb 2026 at 8:56pm
2 We 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 the Windows API function InterlockedCompareExchange128, which performs an atomic compare-and-swap on 128-bit values. We?re trying to determine:
linux - Is rename () atomic? - Stack Overflow
9 Feb 2026 at 6:33am
But rename() is still atomic in a very important sense: if you use it to overwrite a file, then you will end up with either the old or the new version and nothing else. [update: but as @jonas-wielicki points out in the comments, you need to make sure the file you are renaming actually has up-to-date contents, using fsync() and friends.]
How do I use atomicMax on floating-point values in CUDA?
5 Feb 2026 at 6:09am
As you can see from the atomic function documentation, only integer arguments are supported for atomicMax and 64 bit integer arguments are only supported on compute capability 3.5 devices.
When to use AtomicReference in Java? - Stack Overflow
9 Feb 2026 at 1:57pm
When do we use AtomicReference? Is it needed to create objects in all multithreaded programs? Provide a simple example where AtomicReference should be used.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
