std::execution::when_all C++ Execution Library Defined in header<execution> execution::senderautowhen_all(execution::senderauto...inputs); (since C++26) Parameters inputs-senders upon which the completion ofwhen
std::execution::seq,std::execution::par,std::execution::par_unseq,std::execution::unseq C++ Algorithm library Constrained algorithms, e.g.ranges::copy,ranges::sort, ... Defined in header<execution> inlineconstexpr std::execution::sequenced_policyseq{/* unspecified */}; ...
std::execution::seq、 std::execution::par、 std::execution::par_unseq 及std::execution::unseq 分别是执行策略类型 std::execution::sequenced_policy、 std::execution::parallel_policy、 std::execution::parallel_unsequenced_policy 与std::execution::unsequenced_policy 的实例。它们用于指定并行算法的执行...
中断std::condition_variable_any的等待函数, 实施execution::connect创建的异步操作的停止完成, (C++26 起) 用于自定义的线程管理实现。 实际上它们甚至不需要用于“停止”任何操作,例如可以用作线程安全的一次性函数调用触发器。 在标头<stop_token>定义
Execution policies(C++17) Constrained algorithms(C++20) Strings library basic_string−char_traits basic_string_view(C++17) Text processing library Primitive numeric conversions(C++17) Formatting(C++20)−Localization text_encoding(C++26) Regular expressions(C++11) ...
but does not spawn a new thread of execution. Instead,lazy evaluationis performed: the first call to a non-timed wait function on thestd::futurethatasyncreturned to the caller will causef(args...)to be executed in the current thread. All further accesses to the samestd::futurewill return...
Execution policies(C++17) Constrained algorithms(C++20) Strings library basic_string−char_traits basic_string_view(C++17) Text processing library Primitive numeric conversions(C++17) Formatting(C++20)−Localization text_encoding(C++26) Regular expressions(C++11) ...
Execution policies(C++17) Constrained algorithms(C++20) Strings library basic_string−char_traits basic_string_view(C++17) Text processing library Primitive numeric conversions(C++17) Formatting(C++20)−Localization text_encoding(C++26) Regular expressions(C++11) ...
Execution policies(C++17) Constrained algorithms(C++20) Strings library basic_string−char_traits basic_string_view(C++17) Text processing library Primitive numeric conversions(C++17) Formatting(C++20)−Localization text_encoding(C++26) Regular expressions(C++11) ...
Execution policies(C++17) Constrained algorithms(C++20) Strings library basic_string−char_traits basic_string_view(C++17) Text processing library Primitive numeric conversions(C++17) Formatting(C++20)−Localization text_encoding(C++26) Regular expressions(C++11) ...