T fetch_add(T arg,std::memory_orderorder= std::memory_order_seq_cst)volatilenoexcept; (2)(since C++11) member only ofatomic<T*>partial specialization T*fetch_add(std::ptrdiff_targ, std::memory_orderorder= std::
fetch_add(1, std::memory_order_relaxed); } int main() { std::thread th1(do_work); std::thread th2(do_work); std::thread th3(do_work); std::thread th4(do_work); std::thread th5(do_work); th1.join(); th2.join(); th3.join(); th4.join(); th5.join(); std::cout...
C atomic_fetch_add( volatile A* obj, M arg ); (1) (since C11) C atomic_fetch_add_explicit( volatile A* obj, M arg, memory_order order ); (2) (since C11) Atomically replaces the value pointed by obj with the result of addition of arg to the old value of obj, and returns ...
若为访问实际函数压制宏定义(例如像 (atomic_fetch_add)(...) 这样加括号),或程序定义拥有泛型函数名的外部标识符,则行为未定义。 对于有符号整数类型,定义算术为使用补码表示。无未定义结果。对于指针类型,结果可能是未定义地址,但运算不会另有未定义行为。
问std::memory_order_relaxed示例在cppreference.com中EN在 C++ 编程中，有时候我们需要在不进行拷贝的...
First, an internal commit is performed on the METADATA CP group every time you fetch a proxy from this interface. Hence, callers should cache the returned proxy objects. Second, if you call DistributedObject::destroy() on a CP data structure proxy, that data structure is terminated on the ...
返回值 obj 所指向的原子对象先前保有的值。 引用 C11 standard (ISO/IEC 9899:2011): 7.17.7.5 The atomic_fetch and modify generic functions (p: 284-285) 参阅 atomic_fetch_addatomic_fetch_add_explicit(C11) 原子加法(函数) atomic_fetch_sub, atomic_fetch_sub_explicit 的 C++ 文档 ...
fetch_add (C++11) atomar fügt das Argument zu dem Wert in dem atomaren Objekt gespeichert und erhält den Wert gehalten zuvor Original: atomically adds the argument to the value stored in the atomic object and obtains the value held previously The text has been machine-translated via ...
cppreference.com Create account Page Discussion Standard revision:DiffC++98/03C++11C++14C++17C++20C++23C++26 View Edit History Build your website for just $3.88/mth. More value and performance with Namecheap.ads via Carbon std::atomic_ref<T>::fetch_add ...
atomic_fetch_addatomic_fetch_add_explicit (C++11)(C++11) 将非原子值加到原子对象上,并获得原子对象的先前值 (函数模板) atomic_fetch_subatomic_fetch_sub_explicit (C++11)(C++11) 从原子对象中减去非原子值,并获得原子对象的先前值 (函数模板) ...