// RUN: %clang_cc1 -fsyntax-only -ftrigraphs -Wtrigraphs -verify %s
??=define a?? ??!??! b?? // expected-warning {{trigraph converted to '#' character}} expected-warning {{trigraph converted to '[' character}} expected-warning {{trigraph converted to ']' character}} expected-warning {{trigraph converted to '|' character}} expected-warning {{trigraph converted to '|' character}} expected-warning {{trigraph converted to '[' character}} expected-warning {{trigraph converted to ']' character}}