gcc/testsuite/g++.dg/template/crash107.C

   1 // PR c++/44625
   2 // { dg-do compile }
   3 // { dg-options "-Wno-return-type" }
   4
   5 template<typename FP_> struct Vec { // { dg-message "note" "" { target c++17_down } }
   6     Vec& operator^=(Vec& rhs)     {
   7         union {
   8             struct {FP_ x,y,z;}; // { dg-error "20:anonymous struct" }
   9         };
  10         X = y*rhs.z() - z*rhs.y(); // { dg-error "not declared|no member" }
  11     }
  12     Vec& operator^(Vec& rhs) {
  13         return Vec(*this)^=rhs;
  14     }
  15 };
  16 Vec<double> v(3,4,12); // { dg-error "no matching|too many initializers" }
  17 Vec<double> V(12,4,3);  // { dg-error "no matching|too many initializers" }
  18 Vec<double> c = v^V;