clang/test/PCH/pack_indexing.cpp

   1 // RUN: %clang_cc1 -std=c++2c -x c++-header %s -emit-pch -o %t.pch
   2 // RUN: %clang_cc1 -std=c++2c -x c++ /dev/null -include-pch %t.pch
   3
   4 // RUN: %clang_cc1 -std=c++2c -x c++-header %s -emit-pch -fpch-instantiate-templates -o %t.pch
   5 // RUN: %clang_cc1 -std=c++2c -x c++ /dev/null -include-pch %t.pch
   6
   7 template <int I, typename... U>
   8 using Type = U...[I];
   9
  10 template <int I, auto...V>
  11 constexpr auto Var = V...[I];
  12
  13 template <int I, auto...V>
  14 decltype(V...[I]) foo() { return V...[I]; }
  15
  16 void fn1() {
  17   using A = Type<1, int, long, double>;
  18   constexpr auto V = Var<2, 0, 1, 42>;
  19   foo<2, 0, 1, 42>();
  20 }