src/llvm/tools/clang/test/CXX/special/class.copy/p20.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 struct ConstCopy {
   4   ConstCopy();
   5   ConstCopy &operator=(const ConstCopy&);
   6 };
   7
   8 struct NonConstCopy {
   9   NonConstCopy();
  10   NonConstCopy &operator=(NonConstCopy&);
  11 };
  12
  13 struct VirtualInheritsNonConstCopy : virtual NonConstCopy {
  14   VirtualInheritsNonConstCopy();
  15   VirtualInheritsNonConstCopy &operator=(const VirtualInheritsNonConstCopy&);
  16 };
  17
  18 struct ImplicitNonConstCopy1 : NonConstCopy {  // expected-note{{the implicit copy assignment operator}}
  19   ImplicitNonConstCopy1();
  20 };
  21
  22 struct ImplicitNonConstCopy2 { // expected-note{{the implicit copy assignment operator}}
  23   ImplicitNonConstCopy2();
  24   NonConstCopy ncc;
  25 };
  26
  27 struct ImplicitNonConstCopy3 { // expected-note{{the implicit copy assignment operator}}
  28   ImplicitNonConstCopy3();
  29   NonConstCopy ncc_array[2][3];
  30 };
  31
  32 struct ImplicitNonConstCopy4 : VirtualInheritsNonConstCopy {
  33   ImplicitNonConstCopy4();
  34 };
  35
  36 void test_non_const_copy(const ImplicitNonConstCopy1 &cincc1,
  37                          const ImplicitNonConstCopy2 &cincc2,
  38                          const ImplicitNonConstCopy3 &cincc3,
  39                          const ImplicitNonConstCopy4 &cincc4,
  40                          const VirtualInheritsNonConstCopy &vincc) {
  41   (void)sizeof(ImplicitNonConstCopy1() = cincc1); // expected-error{{no viable overloaded '='}}
  42   (void)sizeof(ImplicitNonConstCopy2() = cincc2); // expected-error{{no viable overloaded '='}}
  43   (void)sizeof(ImplicitNonConstCopy3() = cincc3); // expected-error{{no viable overloaded '='}}
  44   (void)sizeof(ImplicitNonConstCopy4() = cincc4); // okay
  45   (void)sizeof(VirtualInheritsNonConstCopy() = vincc);
  46 }