std:: suspend_always
From cppreference.com
C++
Utilities library
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Coroutine support
| Coroutine traits | ||||
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(C++20)
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| Coroutine handle | ||||
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(C++20)
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| No-op coroutines | ||||
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(C++20)
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(C++20)
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| Trivial awaitables | ||||
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(C++20)
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suspend_always
(C++20)
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| Range generators | ||||
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(C++23)
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Defined in header
<coroutine>
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struct
suspend_always
;
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(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
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await_ready
|
indicates that an await expression always suspends
(public member function) |
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await_suspend
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no-op
(public member function) |
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await_resume
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no-op
(public member function) |
std::suspend_always:: await_ready
|
constexpr
bool
await_ready
(
)
const
noexcept
{
return
false
;
}
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Always returns false , indicating that an await expression always suspends.
std::suspend_always:: await_suspend
|
constexpr
void
await_suspend
(
std::
coroutine_handle
<>
)
const
noexcept
{
}
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Does nothing.
std::suspend_always:: await_resume
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constexpr
void
await_resume
(
)
const
noexcept
{
}
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Does nothing. An await expression does not produce a value if
suspend_always
is used.
Example
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This section is incomplete
Reason: no example |
See also
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(C++20)
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indicates that an await-expression should never suspend
(class) |
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