clang/test/Lexer/cxx2a_keyword_as_cxx17.cpp

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only -Wc++20-compat -std=c++17
   2
   3 #define concept constexpr bool
   4 template<typename T>
   5 concept x = 0;
   6 #undef concept
   7
   8 int co_await = 0; // expected-warning {{'co_await' is a keyword in C++20}}
   9 int co_return = 0; // expected-warning {{'co_return' is a keyword in C++20}}
  10 int co_yield = 0; // expected-warning {{'co_yield' is a keyword in C++20}}
  11 int char8_t = 0; // expected-warning {{'char8_t' is a keyword in C++20}}
  12 int concept = 0; // expected-warning {{'concept' is a keyword in C++20}}
  13 int requires = 0; // expected-warning {{'requires' is a keyword in C++20}}
  14 int consteval = 0; // expected-warning {{'consteval' is a keyword in C++20}}
  15 int constinit = 0; // expected-warning {{'constinit' is a keyword in C++20}}