// RUN: %clang_cc1 -std=c++20 %s -verify -pedantic-errors // As amended by P2615R1 applied as a DR against C++20. export module p3; namespace A { int ns_mem; } // expected-note 2{{target}} // An exported declaration shall declare at least one name. export; // No diagnostic after P2615R1 DR export static_assert(true); // No diagnostic after P2615R1 DR export using namespace A; // No diagnostic after P2615R1 DR export { // No diagnostic after P2615R1 DR ; // No diagnostic after P2615R1 DR static_assert(true); // No diagnostic after P2615R1 DR using namespace A; // No diagnostic after P2615R1 DR } export struct {}; // expected-error {{must be class member}} expected-error {{GNU extension}} expected-error {{does not declare anything}} export struct {} struct_; export union {}; // expected-error {{must be declared 'static'}} expected-error {{does not declare anything}} export union {} union_; export enum {}; // expected-error {{does not declare anything}} export enum {} enum_; export enum E : int; export typedef int; // expected-error {{typedef requires a name}} export static union {}; // expected-error {{does not declare anything}} export asm(""); // No diagnostic after P2615R1 DR export namespace B = A; export using A::ns_mem; // expected-error {{using declaration referring to 'ns_mem' with module linkage cannot be exported}} namespace A { export using A::ns_mem; // expected-error {{using declaration referring to 'ns_mem' with module linkage cannot be exported}} } export using Int = int; export extern "C++" {} // No diagnostic after P2615R1 DR export extern "C++" { extern "C" {} } // No diagnostic after P2615R1 DR export extern "C++" { extern "C" int extern_c; } export { // No diagnostic after P2615R1 DR extern "C++" int extern_cxx; extern "C++" {} // No diagnostic after P2615R1 DR } export [[]]; // No diagnostic after P2615R1 DR export [[example::attr]]; // expected-warning {{unknown attribute 'attr'}} // [...] shall not declare a name with internal linkage export static int a; // expected-error {{declaration of 'a' with internal linkage cannot be exported}} export static int b(); // expected-error {{declaration of 'b' with internal linkage cannot be exported}} export namespace { } // expected-error {{anonymous namespaces cannot be exported}} export namespace { int c; } // expected-error {{anonymous namespaces cannot be exported}} namespace { // expected-note {{here}} export int d; // expected-error {{export declaration appears within anonymous namespace}} } export template static int e; // expected-error {{declaration of 'e' with internal linkage cannot be exported}} export template static int f(); // expected-error {{declaration of 'f' with internal linkage cannot be exported}} export const int k = 5; export static union { int n; }; // expected-error {{declaration of 'n' with internal linkage cannot be exported}}