1 // RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-17 -fexceptions -fcxx-exceptions -pedantic-errors 2 // RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 3 // RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 4 // RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 5 // RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx20,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 6 // RUN: %clang_cc1 -std=c++23 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx20,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 7 // RUN: %clang_cc1 -std=c++2c -triple x86_64-unknown-unknown %s -verify=expected,since-cxx20,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors 8 9 namespace cwg820 { // cwg820: 2.7 10 export template <class T> struct B {}; 11 // cxx98-17-warning@-1 {{exported templates are unsupported}} 12 // since-cxx20-error@-2 {{export declaration can only be used within a module purview}} 13 export template<typename T> void f() {} 14 // cxx98-17-warning@-1 {{exported templates are unsupported}} 15 // since-cxx20-error@-2 {{export declaration can only be used within a module purview}} 16 } // namespace cwg820 17 18 namespace cwg873 { // cwg873: 3.0 19 #if __cplusplus >= 201103L 20 template <typename T> void f(T &&); 21 template <> void f(int &) = delete; // #cwg873-lvalue-ref 22 template <> void f(int &&) = delete; // #cwg873-rvalue-ref 23 void g(int i) { 24 f(i); // calls f<int&>(int&) 25 // since-cxx11-error@-1 {{call to deleted function 'f'}} 26 // since-cxx11-note@#cwg873-lvalue-ref {{candidate function [with T = int &] has been implicitly deleted}} 27 f(0); // calls f<int>(int&&) 28 // since-cxx11-error@-1 {{call to deleted function 'f'}} 29 // since-cxx11-note@#cwg873-rvalue-ref {{candidate function [with T = int] has been implicitly deleted}} 30 } 31 #endif 32 } // namespace cwg873 33 34 // cwg882: 3.5 35 #if __cplusplus >= 201103L 36 int main() = delete; 37 // since-cxx11-error@-1 {{'main' is not allowed to be deleted}} 38 #endif 39