gcc/testsuite/g++.dg/cpp0x/Wunused-variable-1.C

   1 // PR c++/71442
   2 // { dg-do compile { target c++11 } }
   3 // { dg-options "-Wunused-variable" }
   4
   5 struct C
   6 {
   7   template<typename... Ts>
   8   int operator()(Ts &&...)
   9   {
  10     return sizeof...(Ts);
  11   }
  12 };
  13
  14 int
  15 foo ()
  16 {
  17   C {} (1, 1L, 1LL, 1.0);
  18   return 0;
  19 }
  20
  21 template<int N>
  22 void
  23 bar ()
  24 {
  25   char a;               // { dg-warning "unused variable" }
  26   short b;              // { dg-warning "unused variable" }
  27   int c;                // { dg-warning "unused variable" }
  28   long d;               // { dg-warning "unused variable" }
  29   long long e;          // { dg-warning "unused variable" }
  30   float f;              // { dg-warning "unused variable" }
  31   double g;             // { dg-warning "unused variable" }
  32 }
  33
  34 void
  35 baz ()
  36 {
  37   bar <0> ();
  38 }