From cppreference.com
classnever_stop_token;(since C++26)The never_stop_token class models
that provides static information that a stop is never possible nor requested. It is the default stop token type returned by std::get_stop_token if no other associated stop token is being provided in the queryable object.
Member alias templates
Type Definition callback_type<Callback>/*callback-type*/
where the type is defined as: struct/*callback-type*/{explicit/*callback-type*/(never_stop_token,auto&&)noexcept{}};(exposition only*)Member functions
stop_requested
[static]
indicates that a stop can never be requested
(public static member function)stop_possible
[static]
indicates that a stop is not possible
(public static member function)operator==
compares two never_stop_token objects
(public member function)std::never_stop_token::stop_requested
staticconstexprboolstop_requested()noexcept{returnfalse;}Always returns false, indicating that a stop can never be requested.
std::never_stop_token::stop_possible
staticconstexprboolstop_possible()noexcept{returnfalse;}Always returns false, indicating that a stop is not possible.
std::never_stop_token::operator==
booloperator==(constnever_stop_token&)const=default;Two never_stop_token objects always compare equal.
Example