gcc/testsuite/g++.dg/cpp2a/constexpr-new12.C

   1 // PR c++/93633
   2 // { dg-do compile { target c++2a } }
   3 // { dg-additional-options "-fdelete-null-pointer-checks" }
   4
   5 struct A {
   6   constexpr A () : a (0) {}
   7   constexpr virtual int foo () { return 1 + a * 4; }
   8   int a;
   9 };
  10
  11 struct B : A {
  12   constexpr B () : b (0) {}
  13   constexpr virtual int foo () { return 0 + b * 4; }
  14   int b;
  15 };
  16
  17 constexpr int
  18 foo ()
  19 {
  20   A *a = new B ();
  21   a->a = 4;
  22   delete a;
  23   int r = a->foo ();
  24   return r;
  25 }
  26
  27 constexpr auto a = foo ();      // { dg-error "is not a constant expression" }