clang/test/SemaCXX/attr-extension-diags.cpp

   1 // RUN: %clang_cc1 -std=c++11 -verify=ext -fsyntax-only -Wfuture-attribute-extensions %s
   2 // RUN: %clang_cc1 -std=c++11 -verify -fsyntax-only -Wno-future-attribute-extensions %s
   3 // RUN: %clang_cc1 -std=c++11 -verify -fsyntax-only -Wno-c++14-attribute-extensions -Wno-c++17-attribute-extensions -Wno-c++20-attribute-extensions %s
   4
   5 // expected-no-diagnostics
   6
   7 [[deprecated]] int func1(); // ext-warning {{use of the 'deprecated' attribute is a C++14 extension}}
   8 [[deprecated("msg")]] int func2(); // ext-warning {{use of the 'deprecated' attribute is a C++14 extension}}
   9
  10 [[nodiscard]] int func3(); // ext-warning {{use of the 'nodiscard' attribute is a C++17 extension}}
  11 [[nodiscard("msg")]] int func4(); // ext-warning {{use of the 'nodiscard' attribute is a C++20 extension}}
  12
  13 void func5() {
  14   if (true) [[likely]]; // ext-warning {{use of the 'likely' attribute is a C++20 extension}}
  15 }