1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -Wsystem-headers -isystem %S %s
2 
3 #include <no-warn-user-defined-literals-in-system-headers.h>
4 
5 void operator "" bar(long double); // expected-warning{{user-defined literal suffixes not starting with '_' are reserved}}
6