gcc/testsuite/g++.dg/lookup/using59.C

   1
   2 namespace Y
   3 {
   4   extern int I; //  { dg-message "previous declaration" }
   5 }
   6
   7 using Y::I;
   8 extern int I; // { dg-error "conflicts with a previous" }
   9
  10 extern int J;
  11 extern int J; //  { dg-message "previous declaration" }
  12 extern char J; // { dg-error "conflicting declaration" }