1 // Check for warnings in non-C11 mode: 2 // RUN: %clang_cc1 -fsyntax-only -std=c99 -verify -Wc11-extensions %s 3 4 // Expect no warnings in C11 mode: 5 // RUN: %clang_cc1 -fsyntax-only -std=c11 -pedantic -Werror %s 6 7 struct s { 8 int a; 9 struct { // expected-warning{{anonymous structs are a C11 extension}} 10 int b; 11 }; 12 }; 13 14 struct t { 15 int a; 16 union { // expected-warning{{anonymous unions are a C11 extension}} 17 int b; 18 }; 19 }; 20