1 // RUN: %clang_cc1 -std=c++1z -verify %s 2 3 [[disable_tail_calls, noduplicate]] void f() {} // expected-warning {{unknown attribute 'disable_tail_calls'}} expected-warning {{unknown attribute 'noduplicate'}} 4 5 [[using clang: disable_tail_calls, noduplicate]] void g() {} // ok 6 7 [[using]] extern int n; // expected-error {{expected identifier}} 8 [[using foo 9 ] // expected-error {{expected ':'}} 10 ] extern int n; 11 [[using 42:]] extern int n; // expected-error {{expected identifier}} 12 [[using clang:]] extern int n; // ok 13 [[using blah: clang::optnone]] extern int n; // expected-error {{attribute with scope specifier cannot follow}} expected-warning {{only applies to functions}} 14 15 [[using clang: unknown_attr]] extern int n; // expected-warning {{unknown attribute}} 16 [[using unknown_ns: something]] extern int n; // expected-warning {{unknown attribute}} 17
