gcc/testsuite/g++.dg/cpp2a/nontype-class6.C

   1 // { dg-do compile { target c++2a } }
   2
   3 struct A {
   4   char ar[10];
   5   constexpr A (const char *p) : ar()
   6   {
   7     for (int i = 0; i < 10; ++i)
   8       if ((ar[i] = p[i]) == 0)
   9         break;
  10   }
  11   // auto operator<=> (const A&) = default;
  12 };
  13
  14 template <A a> constexpr A operator "" _sh() { return a; }
  15
  16 constexpr auto a = "foo"_sh;
  17 static_assert (a.ar[0] == 'f');