gcc/testsuite/g++.dg/cpp0x/trailing3.C

   1 // More auto/decltype mangling tests.
   2 // { dg-options "-std=c++0x -fabi-version=0" }
   3
   4 template <class T>
   5 struct B
   6 {
   7   static int i;
   8 };
   9
  10 int&& x();
  11
  12 template <class T>
  13 struct A
  14 {
  15   static int i;
  16   static int &ir;
  17   static int &&irr;
  18   template <class U>
  19   auto f(U u) -> decltype (u + i);
  20   template <class U>
  21   auto fr(U u) -> decltype (u + ir);
  22   template <class U>
  23   auto frr(U u) -> decltype (u + irr);
  24   template <class U>
  25   auto g(U u) -> decltype (u + sizeof (i));
  26   template <class U>
  27   auto h(U u) -> decltype (u + B<U>::i);
  28   template <class U>
  29   auto j(U u) -> decltype (u + x());
  30 };
  31
  32 template<class T> template<class U>
  33 auto A<T>::f(U u) -> decltype (u + i)
  34 {
  35   return u + i;
  36 }
  37
  38 template <class... Args>
  39 int f (Args... args);
  40
  41 template <class... Args>
  42 auto g (Args... args) -> decltype (f ((args+1)...))
  43 {
  44   return (f ((args+1)...));
  45 }
  46
  47 int main()
  48 {
  49   // { dg-final { scan-assembler  "_ZN1AIiE1fIiEEDTplfp_L_ZNS0_1iEEET_" } }
  50   A<int>().f(1);
  51   // { dg-final { scan-assembler  "_ZN1AIiE2frIiEEDTplfp_L_ZNS0_2irEEET_" } }
  52   A<int>().fr(1);
  53   // { dg-final { scan-assembler  "_ZN1AIiE3frrIiEEDTplfp_L_ZNS0_3irrEEET_" } }
  54   A<int>().frr(1);
  55   // { dg-final { scan-assembler  "_ZN1AIiE1gIiEEDTplfp_szL_ZNS0_1iEEET_" } }
  56   A<int>().g(1);
  57   // { dg-final { scan-assembler  "_ZN1AIiE1hIiEEDTplfp_sr1BIT_E1iES3_" } }
  58   A<int>().h(1);
  59   // { dg-final { scan-assembler  "_ZN1AIiE1jIiEEDTplfp_clL_Z1xvEEET_" } }
  60   A<int>().j(1);
  61   // { dg-final { scan-assembler  "_Z1gIJidEEDTcl1fspplfp_Li1EEEDpT_" } }
  62   g(42, 1.0);
  63 }