| // RUN: %clang_cc1 -verify=no-trigraphs -std=c23 %s |
| // RUN: %clang_cc1 -verify=no-trigraphs -std=gnu23 %s |
| // RUN: %clang_cc1 -verify=no-trigraphs -std=gnu17 %s |
| // RUN: %clang_cc1 -verify=no-trigraphs -std=gnu11 %s |
| // RUN: %clang_cc1 -verify=no-trigraphs -std=gnu99 %s |
| // RUN: %clang_cc1 -verify=no-trigraphs -std=gnu89 %s |
| // RUN: %clang_cc1 -verify=trigraphs -std=c17 %s |
| // RUN: %clang_cc1 -verify=trigraphs -std=c11 %s |
| // RUN: %clang_cc1 -verify=trigraphs -std=c99 %s |
| // RUN: %clang_cc1 -verify=trigraphs -std=c89 %s |
| // RUN: %clang_cc1 -verify=trigraphs -std=c23 -ftrigraphs %s |
| |
| /* WG14 N2940: Clang 18 |
| * Removing trigraphs??! |
| */ |
| |
| // Trigraphs are enabled by default in any conforming C mode before C23, but |
| // are otherwise disabled (in all GNU modes, and in C23 or later). |
| // The ??= trigraph, if supported, will become the # character, which is a null |
| // preprocessor directive that does nothing. |
| |
| ??= |
| // no-trigraphs-warning@-1 {{trigraph ignored}} \ |
| no-trigraphs-error@-1 {{expected identifier or '('}} \ |
| trigraphs-warning@-1 {{trigraph converted to '#' character}} |
| |
