std::unstoppable_token

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Concurrency support library

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inplace_stop_callback (C++26)
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stoppable_token (C++26)
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Free functions for atomic flags
atomic_flag_test_and_setatomic_flag_test_and_set_explicit (C++11)(C++11)
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atomic_flag_waitatomic_flag_wait_explicit (C++20)(C++20)
atomic_flag_notify_one (C++20)
atomic_flag_notify_all (C++20)

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Defined in header`<stop_token>`
template<class Token> concept unstoppable_token= std::stoppable_token<Token>&& requires(const Token tok){ requiresstd::bool_constant<(!tok.stop_possible())>::value; };		(since C++26)

The conceptunstoppable_token<Token> specifies an additional requirement for astoppable_token where the type does not allow stopping. That is, the expressiontok.stop_possible() must be usable in constant expression and returnsfalse.

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