clang/test/CXX/over/over.oper/p7.cpp

   1 // RUN: %clang_cc1 -std=c++11 %s -verify=expected,cxx11
   2 // RUN: %clang_cc1 -std=c++23 %s -verify=expected,cxx23
   3 // RUN: %clang_cc1 -std=c++23 -Wpre-c++23-compat %s -verify=expected,precxx23
   4
   5
   6 struct Functor {
   7   static int operator()(int a, int b);
   8   static int operator[](int a1);
   9   // cxx11-warning@-2 {{declaring overloaded 'operator()' as 'static' is a C++23 extension}}
  10   // cxx11-warning@-2 {{declaring overloaded 'operator[]' as 'static' is a C++23 extension}}
  11   // precxx23-warning@-4 {{incompatible with C++ standards before C++23}}
  12   // precxx23-warning@-4 {{incompatible with C++ standards before C++23}}
  13 };
  14
  15 struct InvalidParsing1 {
  16   extern int operator()(int a, int b);  // expected-error {{storage class specified}}
  17   extern int operator[](int a1);  // expected-error {{storage class specified}}
  18 };
  19
  20 struct InvalidParsing2 {
  21   extern static int operator()(int a, int b);  // expected-error {{storage class specified}} // expected-error {{cannot combine with previous 'extern' declaration specifier}}
  22   extern static int operator[](int a);  // expected-error {{storage class specified}} // expected-error {{cannot combine with previous 'extern' declaration specifier}}
  23 };