1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat-pedantic -verify %s 2 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat -Werror %s 3 // RUN: %clang_cc1 -fsyntax-only -std=c++98 -Werror %s 4 5 // -Wc++98-compat-pedantic warns on C++11 features which we accept without a 6 // warning in C++98 mode. 7 8 #line 32767 // ok 9 #line 32768 // expected-warning {{#line number greater than 32767 is incompatible with C++98}} 10 11 #define VA_MACRO(x, ...) x // expected-warning {{variadic macros are incompatible with C++98}} 12 VA_MACRO(,x) // expected-warning {{empty macro arguments are incompatible with C++98}} 13 14 ; // expected-warning {{extra ';' outside of a function is incompatible with C++98}} 15 16 enum Enum { 17 Enum_value, // expected-warning {{commas at the end of enumerator lists are incompatible with C++98}} 18 }; 19 20 template<typename T> struct InstantiationAfterSpecialization {}; 21 template<> struct InstantiationAfterSpecialization<int> {}; // expected-note {{here}} 22 template struct InstantiationAfterSpecialization<int>; // expected-warning {{explicit instantiation of 'InstantiationAfterSpecialization<int>' that occurs after an explicit specialization is incompatible with C++98}} 23 24 void *dlsym(); 25 void (*FnPtr)() = (void(*)())dlsym(); // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}} 26 void *FnVoidPtr = (void*)&dlsym; // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}} 27 28 struct ConvertToInt { 29 operator int(); 30 }; 31 int *ArraySizeConversion = new int[ConvertToInt()]; // expected-warning {{implicit conversion from array size expression of type 'ConvertToInt' to integral type 'int' is incompatible with C++98}} 32 33 template<typename T> class ExternTemplate {}; 34 extern template class ExternTemplate<int>; // expected-warning {{extern templates are incompatible with C++98}} 35