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 -DCXX98 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++14}} 53 #endif 54 55 namespace CopyCtorIssues { 56 struct Private { 57 Private(); 58 private: 59 Private(const Private&); // expected-note {{declared private here}} 60 }; 61 struct NoViable { 62 NoViable(); 63 NoViable(NoViable&); // expected-note {{not viable}} 64 }; 65 struct Ambiguous { 66 Ambiguous(); 67 Ambiguous(const Ambiguous &, int = 0); // expected-note {{candidate}} 68 Ambiguous(const Ambiguous &, double = 0); // expected-note {{candidate}} 69 }; 70 struct Deleted { 71 Private p; // expected-note {{implicitly deleted}} 72 }; 73 74 const Private &a = Private(); // expected-warning {{copying variable of type 'CopyCtorIssues::Private' when binding a reference to a temporary would invoke an inaccessible constructor in C++98}} 75 const NoViable &b = NoViable(); // expected-warning {{copying variable of type 'CopyCtorIssues::NoViable' when binding a reference to a temporary would find no viable constructor in C++98}} 76 #if !CXX98 77 const Ambiguous &c = Ambiguous(); // expected-warning {{copying variable of type 'CopyCtorIssues::Ambiguous' when binding a reference to a temporary would find ambiguous constructors in C++98}} 78 #endif 79 const Deleted &d = Deleted(); // expected-warning {{copying variable of type 'CopyCtorIssues::Deleted' when binding a reference to a temporary would invoke a deleted constructor in C++98}} 80 } 81
