clang/test/Parser/cxx1z-using-declaration.cpp

   1 // RUN: %clang_cc1 -std=c++1z -verify %s
   2
   3 namespace A {
   4   int m, n;
   5 };
   6
   7 namespace B {
   8   using A::m, A::n, A::n;
   9   int q = m + n;
  10 }
  11
  12 struct X {
  13   int x1, x2, y, z; // expected-note 2{{conflicting}}
  14 };
  15 struct Y {
  16   int x1, x2, y, z; // expected-note 2{{target}}
  17 };
  18 struct Z : X, Y {
  19   using X::x1,
  20         blah::blah, // expected-error {{undeclared}}
  21         X::x2, // expected-note {{previous}}
  22         Y::y,
  23         X::x2, // expected-error {{redeclaration}}
  24         X::z,
  25         Y::z; // expected-error {{conflicts with}}
  26 };
  27 int X::*px1 = &Z::x1;
  28 int X::*px2 = &Z::x2;
  29 int Y::*py = &Z::y;
  30 int X::*pz = &Z::z;
  31
  32 template<typename ...T> struct Q : T... {
  33   using T::z...; // expected-error {{conflicts}}
  34 };
  35 Q<X,Y> q; // expected-note {{instantiation of}}