gcc/testsuite/g++.dg/cpp2a/spaceship-eq14.C

   1 // PR c++/106361
   2 // { dg-do compile { target c++20 } }
   3
   4 struct foo {
   5   int x;
   6 };
   7
   8 struct bar {
   9   foo f;                        // { dg-error "operator==" }
  10   friend bool operator==(const bar& a, const bar& b);
  11 };
  12
  13 bool operator==(const bar& a, const bar& b) = default;
  14
  15 int main() {
  16   return bar{} == bar{};        // { dg-error "deleted" }
  17 }