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// RUN: %clang_cc1 %s -verify -fsyntax-only -Wc++2a-compat -std=c++17
#define concept constexpr bool
template<typename T>
concept x = 0;
#undef concept
int co_await = 0; // expected-warning {{'co_await' is a keyword in C++2a}}
int co_return = 0; // expected-warning {{'co_return' is a keyword in C++2a}}
int co_yield = 0; // expected-warning {{'co_yield' is a keyword in C++2a}}
int char8_t = 0; // expected-warning {{'char8_t' is a keyword in C++2a}}
int concept = 0; // expected-warning {{'concept' is a keyword in C++2a}}
int requires = 0; // expected-warning {{'requires' is a keyword in C++2a}}
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