1 // Make sure unhidding an extern-c still checks it is compatible 2 3 extern "C" float fabsf (float); // { dg-message "previous declaration" } 4 5 namespace Bob 6 { 7 extern "C" float fabsf (float, float); // { dg-error "20:conflicting C language" } 8 extern "C" double fabs (double, double); // { dg-message "previous declaration" } 9 } 10 11 extern "C" double fabs (double); // { dg-error "19:conflicting C language" } 12