19 lines
614 B
C++
19 lines
614 B
C++
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// This file contains references to sections of the Coroutines TS, which can be
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// found at http://wg21.link/coroutines.
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// RUN: %clang_cc1 -std=c++20 -verify %s -fcxx-exceptions -fexceptions -Wunused-result
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namespace std {
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template<typename ...T>
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struct coroutine_traits {
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struct promise_type {};
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};
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template <> struct coroutine_traits<void>; // expected-note {{forward declaration of 'std::coroutine_traits<void>'}}
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} // namespace std
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void uses_forward_declaration() {
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co_return; // expected-error {{this function cannot be a coroutine: missing definition of specialization 'coroutine_traits<void>'}}
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}
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