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

   1 // No PCH:
   2 // RUN: %clang_cc1 -pedantic -std=c++1z -include %s -verify %s
   3 //
   4 // With PCH:
   5 // RUN: %clang_cc1 -pedantic -std=c++1z -emit-pch %s -o %t
   6 // RUN: %clang_cc1 -pedantic -std=c++1z -include-pch %t -verify %s
   7
   8 // RUN: %clang_cc1 -pedantic -std=c++1z -emit-pch -fpch-instantiate-templates %s -o %t
   9 // RUN: %clang_cc1 -pedantic -std=c++1z -include-pch %t -verify %s
  10
  11 #ifndef HEADER
  12 #define HEADER
  13
  14 template<typename ...T> struct A : T... {
  15   using T::f ...;
  16   template<typename ...U> void g(U ...u) { f(u...); }
  17 };
  18
  19 struct X { void f(); };
  20 struct Y { void f(int); };
  21 struct Z { void f(int, int); };
  22
  23 inline A<X, Y, Z> a;
  24
  25 #else
  26
  27 void test() {
  28   a.g();
  29   a.g(0);
  30   a.g(0, 0);
  31   // expected-error@16 {{no match}}
  32   // expected-note@19 {{candidate}}
  33   // expected-note@20 {{candidate}}
  34   // expected-note@21 {{candidate}}
  35   a.g(0, 0, 0); // expected-note {{instantiation of}}
  36 }
  37
  38 #endif