T fetch_add( T arg, std::memory_order order = std::memory_order_seq_cst ) volatile; (2) (since C++11) (member only of atomic<T*> template specialization) T* fetch_add( std::ptrdiff_t arg, std::memory_order order = std::memory_order_seq_cst ); ...
std::atomic_fetch_add,std::atomic_fetch_add_explicit C++ Concurrency support library Defined in header<atomic> template<classT> T atomic_fetch_add(std::atomic<T>*obj, typenamestd::atomic<T>::difference_typearg)noexcept; (1)(since C++11) ...
T fetch_add( T arg, std::memory_order order = std::memory_order_seq_cst ) noexcept; T fetch_add( T arg, std::memory_order order = std::memory_order_seq_cst ) volatile noexcept; 仅为atomic<T*> 模板特化的成员 (2) T* fetch_add( std::ptrdiff_t arg, std::memory_order or...
#include <iostream> #include <thread> #include <atomic> std::atomic<long long> data; void do_work() { data.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::atomic<T>::fetch_add C++ Concurrency support library std::atomic member only ofatomic<Integral >specializations andatomic<Floating >specializations(since C++20) T fetch_add(T arg,std::memory_orderorder= std::memory_order_seq_cst)noexcept; ...
其实__iob_func和__iob都是用来定义stdin,stdout,stderr，只是不同的VC版本实现方式不同。 下面...
def atomic_add_fetch (item, addendum): return atomic_fetch_add (item, addendum) + addendum Run Code Online (Sandbox Code Playgroud) 是操作的伪代码atomic_add_fetch. Cub*_*bbi 4 std::atomic<T>如果T是整型,则有一个operator+=执行相同操作的成员。它与所有其他原子复合赋值运算符一起在\xc2\...
std::atomic_fetch_add,std::atomic_fetch_add_explicit 定义于头文件<atomic> (1) template<classT> T atomic_fetch_add(std::atomic<T>*obj, typenamestd::atomic<T>::difference_typearg)noexcept; template<classT> T atomic_fetch_add(volatilestd::atomic<T>*obj, ...
T atomic_fetch_add_explicit( std::atomic<T>* obj, typename std::atomic<T>::difference_type arg, std::memory_order order ) noexcept; template< class T > T atomic_fetch_add_explicit( volatile std::atomic<T>* obj, typename std::atomic<T>::difference_type arg, std::memory_order ...
T atomic_fetch_add_explicit( volatile std::atomic<T>* obj, typename std::atomic<T>::difference_type arg, std::memory_order order ) noexcept;进行原子加法。 原子地加 arg 到obj 所指向的值,并返回 obj 先前保有的值。如同执行下列内容一般进行运算: 1...