| // RUN: %clang_cc1 -verify -std=c2y -Wall -pedantic %s |
| // RUN: %clang_cc1 -verify=gnu -Wall -pedantic %s |
| |
| /* WG14 N3341: Yes |
| * Slay Some Earthly Demons III |
| * |
| * Empty structure and union objects are now implementation-defined. |
| */ |
| |
| // expected-no-diagnostics |
| |
| struct R {}; // gnu-warning {{empty struct is a GNU extension}} |
| #if __STDC_VERSION__ >= 201112L |
| struct S { struct { }; }; // gnu-warning {{empty struct is a GNU extension}} |
| #endif |
| struct T { int : 0; }; // gnu-warning {{struct without named members is a GNU extension}} |
| union U {}; // gnu-warning {{empty union is a GNU extension}} |
| |
