| // RUN: %clang_cc1 -fsyntax-only -std=c++98 -Wc++11-compat-pedantic -verify %s |
| // RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wc++11-compat-pedantic -verify %s |
| |
| #if __cplusplus < 201103L |
| |
| namespace N { |
| template<typename T> void f(T) {} // expected-note 2{{here}} |
| namespace M { |
| template void ::N::f<int>(int); // expected-warning {{explicit instantiation of 'f' not in a namespace enclosing 'N'}} |
| } |
| } |
| using namespace N; |
| template void f<char>(char); // expected-warning {{explicit instantiation of 'N::f' must occur in namespace 'N'}} |
| |
| template<typename T> void g(T) {} // expected-note 2{{here}} |
| namespace M { |
| template void g<int>(int); // expected-warning {{explicit instantiation of 'g' must occur at global scope}} |
| template void ::g<char>(char); // expected-warning {{explicit instantiation of 'g' must occur at global scope}} |
| } |
| |
| template inline void g<double>(double); // expected-warning {{explicit instantiation cannot be 'inline'}} |
| |
| void g() { |
| auto int n = 0; // expected-warning {{'auto' storage class specifier is redundant and incompatible with C++11}} |
| } |
| |
| int n; |
| struct S { |
| char c; |
| } |
| s = { n }, // expected-warning {{non-constant-expression cannot be narrowed from type 'int' to 'char' in initializer list in C++11}} expected-note {{explicit cast}} |
| t = { 1234 }; // expected-warning {{constant expression evaluates to 1234 which cannot be narrowed to type 'char' in C++11}} expected-warning {{changes value}} expected-note {{explicit cast}} |
| |
| #define PRIuS "uS" |
| int printf(const char *, ...); |
| typedef __typeof(sizeof(int)) size_t; |
| void h(size_t foo, size_t bar) { |
| printf("foo is %"PRIuS", bar is %"PRIuS, foo, bar); // expected-warning 2{{identifier after literal will be treated as a reserved user-defined literal suffix in C++11}} |
| } |
| |
| #define _x + 1 |
| char c = 'x'_x; // expected-warning {{will be treated as a user-defined literal suffix}} |
| |
| template<int ...N> int f() { // expected-warning {{C++11 extension}} |
| return (N + ...); // expected-warning {{C++17 extension}} |
| } |
| |
| #else |
| |
| decltype(auto) x = 0; // expected-warning {{'decltype(auto)' type specifier is incompatible}} |
| |
| auto init_capture = [a(0)] {}; // expected-warning {{initialized lambda captures are incompatible with C++ standards before C++14}} |
| |
| auto generic_lambda = |
| []( |
| auto // expected-warning {{generic lambdas are incompatible}} |
| *a) {}; |
| |
| auto deduced_return_type(); // expected-warning {{incompatible with C++ standards before C++14}} |
| auto *another_deduced_return_type(); // expected-warning {{incompatible with C++ standards before C++14}} |
| decltype(auto) also_deduced_return_type(); // expected-warning {{return type deduction}} expected-warning {{'decltype(auto)' type specifier is incompatible}} |
| int f(); |
| auto (*not_deduced_return_type)() = f; |
| |
| auto deduced_lambda_return_type = []() -> |
| auto // expected-warning {{return type deduction is incompatible}} |
| {}; |
| |
| auto trailing_non_deduced_return_type() -> int; |
| auto trailing_deduced_return_type() -> auto; // expected-warning {{incompatible with C++ standards before C++14}} |
| |
| struct A { |
| operator auto(); // expected-warning {{return type deduction is incompatible}} |
| }; |
| |
| #endif |