1 // RUN: %clang_cc1 -fsyntax-only -std=c++1y -DCXX1Y -Wc++98-compat-pedantic -verify %s -DCXX1Y2
2 // RUN: %clang_cc1 -fsyntax-only -std=c++1y -DCXX1Y -Wc++98-compat -Werror %s -DCXX1Y2
3 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat-pedantic -verify %s
4 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat -Werror %s
5 // RUN: %clang_cc1 -fsyntax-only -std=c++98 -Werror %s
6 
7 // RUN: %clang_cc1 -fsyntax-only -std=c++1y -Wc++98-compat-pedantic -verify %s -Wno-c++98-c++11-compat-pedantic -DCXX1Y2
8 
9 // -Wc++98-compat-pedantic warns on C++11 features which we accept without a
10 // warning in C++98 mode.
11 
12 #line 32767 // ok
13 #line 32768 // expected-warning {{#line number greater than 32767 is incompatible with C++98}}
14 
15 #define VA_MACRO(x, ...) x // expected-warning {{variadic macros are incompatible with C++98}}
16 VA_MACRO(,x) // expected-warning {{empty macro arguments are incompatible with C++98}}
17 
18 ; // expected-warning {{extra ';' outside of a function is incompatible with C++98}}
19 
20 enum Enum {
21   Enum_value, // expected-warning {{commas at the end of enumerator lists are incompatible with C++98}}
22 };
23 
24 template<typename T> struct InstantiationAfterSpecialization {};
25 template<> struct InstantiationAfterSpecialization<int> {}; // expected-note {{here}}
26 template struct InstantiationAfterSpecialization<int>; // expected-warning {{explicit instantiation of 'InstantiationAfterSpecialization<int>' that occurs after an explicit specialization is incompatible with C++98}}
27 
28 void *dlsym();
29 void (*FnPtr)() = (void(*)())dlsym(); // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}}
30 void *FnVoidPtr = (void*)&dlsym; // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}}
31 
32 struct ConvertToInt {
33   operator int();
34 };
35 int *ArraySizeConversion = new int[ConvertToInt()];
36 #ifdef CXX1Y2
37 // expected-warning@-2 {{implicit conversion from array size expression of type 'ConvertToInt' to integral type 'size_t' is incompatible with C++98}}
38 #else
39 // expected-warning@-4 {{implicit conversion from array size expression of type 'ConvertToInt' to integral type 'int' is incompatible with C++98}}
40 #endif
41 
42 template<typename T> class ExternTemplate {};
43 extern template class ExternTemplate<int>; // expected-warning {{extern templates are incompatible with C++98}}
44 
45 long long ll1 = // expected-warning {{'long long' is incompatible with C++98}}
46          -42LL; // expected-warning {{'long long' is incompatible with C++98}}
47 unsigned long long ull1 = // expected-warning {{'long long' is incompatible with C++98}}
48                    42ULL; // expected-warning {{'long long' is incompatible with C++98}}
49 
50 int k = 0b1001;
51 #ifdef CXX1Y
52 // expected-warning@-2 {{binary integer literals are incompatible with C++ standards before C++1y}}
53 #endif
54