stdexec::stoppable_token & ::stop_token_for_t: Support std::stop_token #1726
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Both the stdexec::stoppable_token concept and the stdexec:: stop_token_for_t template type alias depend on the stop token type having a unary member template named callback_type. While P2300 added the aforementioned member template to std::stop_token that means that before C++26 the aforementioned utilities don't work therewith. Special cased: - stdexec::stoppable_token to allow std::stop_token without checking for the above-mentioned member template, and - stdexec::stop_token_t to resolve to std::stop_callback<Callback> when its first template argument is std::stop_token
RobertLeahy
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ericniebler
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Dec 31, 2025
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/ok to test 89f1e58 |
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Both the stdexec::stoppable_token concept and the stdexec::stop_token_for_t template type alias depend on the stop token type having a unary member template named callback_type. While P2300 added the aforementioned member template to std::stop_token that means that before C++26 the aforementioned utilities don't work therewith.
Special cased: