MSN: New near-zero-temperature atomic clock aims to redefine how precisely we measure time
Scientists in Toronto have unveiled a chilling breakthrough, a laser-regulated atomic clock cooled to just five degrees above absolute zero, promising a leap in timekeeping accuracy unlike anything ...
New near-zero-temperature atomic clock aims to redefine how precisely we measure time
Each instantiation and full specialization of the std::atomic template defines an atomic type. If one thread writes to an atomic object while another thread reads from it, the behavior is well-defined (see memory model for details on data races). In addition, accesses to atomic objects may establish inter-thread synchronization and order non-atomic memory accesses as specified by std::memory ...
Constructs a new atomic variable. ... 2) Initializes the underlying object with desired. The initialization is not atomic. 3) Atomic variables are not CopyConstructible.
Explanation Objects of atomic types are the only objects that are free from data races; that is, they may be modified by two threads concurrently or modified by one and read by another. Each atomic object has its own associated modification order, which is a total order of modifications made to that object.
Standard library header
Usage atomic type specifier and qualifier (since C11) Support us Recent changes FAQ Offline version What links here Related changes Upload file Special pages Printable version Permanent link Page information In other languages
It is deprecated if std::atomic