Tutorial by Topics: atomic

std::atomic<T> std::atomic_flag std::atomic allows atomic access to a TriviallyCopyable type, it is implementation-dependent if this is done via atomic operations or by using locks. The only guaranteed lock-free atomic type is std::atomic_flag.

#ifdef __STDC_NO_ATOMICS__ # error this implementation needs atomics #endif #include <stdatomic.h> unsigned _Atomic counter = ATOMIC_VAR_INIT(0); Atomics as part of the C language are an optional feature that is available since C11. Their purpose is to ensure race-free access to ...

Java Atomic Types are simple mutable types that provide basic operations that are thread-safe and atomic without resorting to locking. They are intended for use in cases where locking would be a concurrency bottleneck, or where there is risk of deadlock or livelock. ParameterDescriptionsetVola...

int atomic_add ( volatile __global int *p , int val) unsigned int atomic_add ( volatile __global unsigned int *p , unsigned int val) int atomic_add ( volatile __local int *p , int val) unsigned int atomic_add ( volatile __local unsigned int *p ,unsigned int val) ...

Regular non-capturing groups allow the engine to re-enter the group and attempt to match something different (such as a different alternation, or match fewer characters when a quantifier is used). Atomic groups differ from regular non-capturing groups in that backtracking is forbidden. Once the gro...