| // RUN: %clang_cc1 -fsyntax-only -verify=gnu -std=gnu17 %s |
| // RUN: %clang_cc1 -fsyntax-only -verify=gnu -std=gnu2x %s |
| // RUN: %clang_cc1 -fsyntax-only -verify=std -std=c17 %s |
| // RUN: %clang_cc1 -fsyntax-only -verify=std -std=c2x %s |
| |
| // std-no-diagnostics |
| |
| // 'index' is a builtin library function, but only in GNU mode. So this should |
| // give an error in GNU modes but be okay in non-GNU mode. |
| // FIXME: the error is correct, but these notes are pretty awful. |
| int index; // gnu-error {{redefinition of 'index' as different kind of symbol}} \ |
| gnu-note {{unguarded header; consider using #ifdef guards or #pragma once}} \ |
| gnu-note {{previous definition is here}} |
