C语言 C++ 网站转手C++ 参考手册 C++11 C++14 C++17 C++20 C++ 编译器支持情况表 独立与宿主实现 C++ 语言 C++ 关键词 预处理器 C++ 标准库头文件 具名要求 功能特性测试 (C++20) 工具库 std::apply 库特性测试宏 (C++20) 程序支持工具 std::initializer_list 函数对象 std::hash std::pair std::tuple...
8 EXPORT_STDtemplate<class_Ty,class_Other = _Ty> _CONSTEXPR20 _Ty exchange(_Ty& _Val, _Other&& _New_val)noexcept( conjunction_v<is_nothrow_move_constructible<_Ty>, is_nothrow_assignable<_Ty&, _Other>>) {// assign _New_val to _Val, return previous _Val_Ty _Old_val =static_cast...
if(!x.compare_exchange_strong(0,10)){constautocurrent_x=x;// x.load()// ...} compare_ex...
根据 order 的值影响内存。 参数 desired - 要赋值的值 order - 要强加的内存顺序制约 返回值 调用前原子对象的值。 参阅 atomic_exchangeatomic_exchange_explicit (C++11)(C++11) 原子地以非原子实参的值替换原子对象的值,并返回该原子对象的旧值 (函数模板) C语言 | C++中文网 ...
比较并交换:a.compare_exchange_strong(b, c)或者a.compare_exchange_weak(b, c),如果a的值等于b,则将a设置为c,返回true,否则返回false。 尽管原子变量是多线程编程中非常重要的同步机制,但是它也存在一些局限性。具体来说,原子变量只能保证单个变量的原子性操作,而不能保证多个变量之间的同步。此外,原子变量也...
compare_exchange_weakis allowed to fail spuriously, that is, acts as if*this!=expectedeven if they are equal. When a compare-and-exchange is in a loop,compare_exchange_weakwill yield better performance on some platforms. Whencompare_exchange_weakwould require a loop andcompare_exchange_strongwo...
__gnu_cxx::__exchange_and_add_dispatch分析; _S_refcount定义 // 27.4.2.1.6 Class ios_base::...
Various aspects of the invention provide systems and methods for improving the privacy-protection of the exchange of STD's test results and the utility of STD test results. One aspect of the invention provides a computer-implemented method of improving privacy-protection during the exchange of STD...
Various aspects of the invention provide systems and methods for improving the privacy-protection of the exchange of STD's test results and the utility of STD test results. One aspect of the invention provides a computer-implemented method of improving privacy-protection during the exchange of STD...
Effective Exchange of Real-Time Location Information Packets in an Integrated Voice/Data Ad-hoc Network Based on the MIL-STD-188-220C. Sung Soo Cho,Chong Woon Lyu. Military Communications Conference . 2007S.S. Cho, C. W. Lyu, B. C. Jung, D K. Sung, "Effective exchange of real-time...