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std::suspend_always(3) C++ Standard Libary std::suspend_always(3)

NAME

std::suspend_always - std::suspend_always

Synopsis


Defined in header <coroutine>
struct suspend_always; (since C++20)


suspend_always is an empty class which can be used to indicate that an await
expression always suspends and does not produce a value.

Member functions


await_ready indicates that an await expression always suspends
(C++20) (public member function)
await_suspend no-op
(C++20) (public member function)
await_resume no-op
(C++20) (public member function)

std::suspend_always::await_ready


constexpr bool await_ready() const noexcept { return false; } (since C++20)


Always returns false, indicating that an await expression always suspends.

std::suspend_always::await_suspend


constexpr void await_suspend( std::coroutine_handle<> ) const (since C++20)
noexcept {}


Does nothing.

std::suspend_always::await_resume


constexpr void await_resume() const noexcept {} (since C++20)


Does nothing. An await expression does not produce a value if suspend_always is
used.

Example


This section is incomplete
Reason: no example

See also


suspend_never indicates that an await-expression should never suspend
(C++20) (class)

Category:


* Todo no example

2024.06.10 http://cppreference.com