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add missing deduction guide for inplace_stop_callback #2289

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Merged
ericniebler merged 1 commit into from
Sep 28, 2026
+10 −0
Merged

add missing deduction guide for inplace_stop_callback #2289

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3 changes: 3 additions & 0 deletions include/stdexec/stop_token.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -259,6 +259,9 @@ STDEXEC_P2300_NAMESPACE_BEGIN()
STDEXEC_ATTRIBUTE(no_unique_address) _Fun __fun_;
};

template <class _Fun>
inplace_stop_callback(inplace_stop_token, _Fun) -> inplace_stop_callback<_Fun>;

inline inplace_stop_source::~inplace_stop_source()
{
STDEXEC_ASSERT((__state_.load(STDEXEC::__std::memory_order_relaxed) & __locked_flag_) == 0);
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7 changes: 7 additions & 0 deletions test/stdexec/concepts/test_concepts_stop_tokens.cpp
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Expand Up @@ -50,4 +50,11 @@ namespace
std::stop_callback<on_stop_request>>);
#endif
}

TEST_CASE("inplace_stop_callback supports class template argument deduction", "[stop_token]")
{
::STDEXEC::inplace_stop_source source;
::STDEXEC::inplace_stop_callback cb{source.get_token(), on_stop_request{}};
STATIC_REQUIRE(std::is_same_v<decltype(cb), ::STDEXEC::inplace_stop_callback<on_stop_request>>);
}
} // namespace
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