| // RUN: %clang_cc1 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++2a -fsyntax-only -verify %s |
| |
| typedef int fn; |
| |
| namespace N0 { |
| struct A { |
| friend void fn(); |
| void g() { |
| int i = fn(1); |
| } |
| }; |
| } |
| |
| namespace N1 { |
| struct A { |
| friend void fn(A &); |
| operator int(); |
| void g(A a) { |
| // ADL should not apply to the lookup of 'fn', it refers to the typedef |
| // above. |
| int i = fn(a); |
| } |
| }; |
| } |
| |
| namespace std_example { |
| int h; // expected-note {{non-template declaration}} |
| void g(); |
| #if __cplusplus <= 201703L |
| // expected-note@-2 {{non-template declaration}} |
| #endif |
| namespace N { |
| struct A {}; |
| template<class T> int f(T); |
| template<class T> int g(T); |
| #if __cplusplus <= 201703L |
| // expected-note@-2 {{here}} |
| #endif |
| template<class T> int h(T); // expected-note {{here}} |
| } |
| |
| int x = f<N::A>(N::A()); |
| #if __cplusplus <= 201703L |
| // expected-warning@-2 {{C++2a extension}} |
| #endif |
| int y = g<N::A>(N::A()); |
| #if __cplusplus <= 201703L |
| // expected-error@-2 {{'g' does not name a template but is followed by template arguments; did you mean 'N::g'?}} |
| #endif |
| int z = h<N::A>(N::A()); // expected-error {{'h' does not name a template but is followed by template arguments; did you mean 'N::h'?}} |
| } |
| |
| namespace AnnexD_example { |
| struct A {}; |
| void operator<(void (*fp)(), A); |
| void f() {} |
| int main() { |
| A a; |
| f < a; |
| #if __cplusplus > 201703L |
| // expected-error@-2 {{expected '>'}} |
| #endif |
| (f) < a; |
| } |
| } |