1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 extern char test1[] __attribute__((used)); // expected-warning {{'used' attribute ignored on a non-definition declaration}} 4 extern const char test2[] __attribute__((used)); // expected-warning {{'used' attribute ignored on a non-definition declaration}} 5 extern const char test3[] __attribute__((used)) = ""; 6