std::latch::try_wait - cppreference.com (original) (raw)

| bool try_wait() const noexcept; | | (since C++20) | | -------------------------------- | | ------------- |

Returns true only if the internal counter has reached zero. This function may spuriously return false with very low probability even if the internal counter has reached zero.

[edit] Parameters

(none)

[edit] Return value

With very low probability false, otherwise cnt == 0, where cnt is the value of the internal counter.

[edit] Notes

The reason why a spurious result is permitted is to allow implementations to use a memory order more relaxed than std::memory_order_seq_cst.