std::stoppable_token
Defined in header <stop_token> | ||
|---|---|---|
template< class Token >
concept stoppable_token =
requires (const Token tok) {
typename /*check-type-alias-exists*/<Token::template callback_type>;
{ tok.stop_requested() } noexcept -> std::same_as<bool>;
{ tok.stop_possible() } noexcept -> std::same_as<bool>;
{ Token(tok) } noexcept; // see implicit expression variations
} &&
std::copyable<Token> &&
std::equality_comparable<Token>;
| (since C++26) | |
| Helper templates | ||
template< template<class> class > struct /*check-type-alias-exists*/; // not defined | (exposition only*) |
The concept stoppable_token<Token> specifies the basic interface of a stop token that is copyable and equality_comparable and allows polling to see if the stop request is possible and whether the request has been made.
Semantic requirements
See also
|
(C++26) | specifies a stop token that does not allow stopping (concept) |
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