# std::suspend_never

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< cpp‎ | coroutine

Defined in header `<coroutine>` |  |
struct suspend_never; |  | (since C++20)

`suspend_never` is an empty class which can be used to indicate that an await expression never suspends and does not produce a value.

### Member functions

await_ready | indicates that an await expression never suspends (public member function)
await_suspend | no-op (public member function)
await_resume | no-op (public member function)

## std::suspend_never::await_ready

constexpr bool await_ready() const noexcept { return true; } |  |

Always returns true, indicating that an await expression never suspends.

## std::suspend_never::await_suspend

constexpr void await_suspend( std::coroutine_handle <> ) const noexcept {} |  |

Does nothing.

## std::suspend_never::await_resume

constexpr void await_resume() const noexcept {} |  |

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

### Example

| This section is incomplete Reason: no example

### See also

suspend_always (C++20) | indicates that an await-expression should always suspend (class)

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