clang/test/CXX/special/class.copy/p8-cxx11.cpp

   1 // RUN: %clang_cc1 -std=c++11 %s -verify
   2 // expected-no-diagnostics
   3
   4 // C++98 [class.copy]p5 / C++11 [class.copy]p8.
   5
   6 // The implicitly-declared copy constructor for a class X will have the form
   7 //   X::X(const X&)
   8 // if [every direct subobject] has a copy constructor whose first parameter is
   9 // of type 'const volatile[opt] T &'. Otherwise, it will have the form
  10 //   X::X(X&)
  11
  12 struct ConstCopy {
  13   ConstCopy(const ConstCopy &);
  14 };
  15
  16 struct NonConstCopy {
  17   NonConstCopy(NonConstCopy &);
  18 };
  19
  20 struct DeletedConstCopy {
  21   DeletedConstCopy(const DeletedConstCopy &) = delete;
  22 };
  23
  24 struct DeletedNonConstCopy {
  25   DeletedNonConstCopy(DeletedNonConstCopy &) = delete;
  26 };
  27
  28 struct ImplicitlyDeletedConstCopy {
  29   ImplicitlyDeletedConstCopy(ImplicitlyDeletedConstCopy &&);
  30 };
  31
  32
  33 struct A : ConstCopy {};
  34 struct B : NonConstCopy { ConstCopy a; };
  35 struct C : ConstCopy { NonConstCopy a; };
  36 struct D : DeletedConstCopy {};
  37 struct E : DeletedNonConstCopy {};
  38 struct F { ImplicitlyDeletedConstCopy a; };
  39 struct G : virtual B {};
  40
  41 struct Test {
  42   friend A::A(const A &);
  43   friend B::B(B &);
  44   friend C::C(C &);
  45   friend D::D(const D &);
  46   friend E::E(E &);
  47   constexpr friend F::F(const F &);
  48   friend G::G(G &);
  49 };