gcc/testsuite/g++.dg/warn/unused-result1-Werror.c

   1 // PR 40614
   2 // { dg-options "-Werror=unused-result" }
   3 /* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
   4 class QByteArray {
   5 public:
   6   QByteArray(const QByteArray &);
   7 };
   8 class QString {
   9   QByteArray toLocal8Bit() const __attribute__ ((warn_unused_result));
  10   void fooWarnHere() const { toLocal8Bit(); } // { dg-error "ignoring" }
  11 };