clang/test/PCH/chain-staticvar-instantiation.cpp

   1 // Without PCH
   2 // RUN: %clang_cc1 -fsyntax-only -verify -include %s -include %s %s
   3
   4 // With PCH
   5 // RUN: %clang_cc1 -fsyntax-only -verify %s -chain-include %s -chain-include %s
   6
   7 #ifndef HEADER1
   8 #define HEADER1
   9 //===----------------------------------------------------------------------===//
  10
  11 namespace NS {
  12
  13 template <class _Tp, _Tp __v>
  14 struct TS
  15 {
  16   static const _Tp value = __v;
  17 };
  18
  19 template <class _Tp, _Tp __v>
  20 const _Tp TS<_Tp, __v>::value;
  21
  22 TS<int, 2> g1;
  23
  24 }
  25
  26 //===----------------------------------------------------------------------===//
  27 #elif not defined(HEADER2)
  28 #define HEADER2
  29 #if !defined(HEADER1)
  30 #error Header inclusion order messed up
  31 #endif
  32
  33 int g2 = NS::TS<int, 2>::value;
  34
  35 //===----------------------------------------------------------------------===//
  36 #else
  37 //===----------------------------------------------------------------------===//
  38
  39 // expected-warning@+1 {{reached main file}}
  40 #warning reached main file
  41
  42 int g3 = NS::TS<int, 2>::value;
  43
  44 //===----------------------------------------------------------------------===//
  45 #endif