gcc/testsuite/g++.dg/pr84943-2.C

   1 // { dg-do run }
   2
   3 // Avoid -pedantic-error default
   4 // { dg-options "" }
   5
   6 // Make sure the functions referenced by various forms of
   7 // address-taking are marked as used and compiled in.
   8
   9 static void ac() {}
  10 void a() {
  11   ac[0](); // { dg-warning "arithmetic" }
  12 }
  13
  14 static void bc() {}
  15 void b() {
  16   (&*&*&*&bc)();
  17 }
  18
  19 template <typename U> U cc() {}
  20 void (*c())() {
  21   return cc;
  22 }
  23
  24 template <typename T>
  25 struct x {
  26   void a(int);
  27   template <typename U> static U a(x*) {}
  28   static void a(long) {}
  29   static void a(void *) {}
  30   static void a() {
  31     void (*p0)(void*) = x().a;
  32     p0(0);
  33     void (*p1)(long) = a;
  34     p1(0);
  35     void (*p2)() = a;
  36     p2();
  37     void (*p3)(x*) = a;
  38     p3(0);
  39   }
  40 };
  41
  42 struct z {
  43   void a(int);
  44   template <typename U> static U a(z*) {}
  45   static void a(long) {}
  46   static void a(void *) {}
  47   static void a() {
  48     void (*p0)(void*) = z().a;
  49     p0(0);
  50     void (*p1)(long) = a;
  51     p1(0);
  52     void (*p2)() = a;
  53     p2();
  54     void (*p3)(z*) = a;
  55     p3(0);
  56   }
  57 };
  58
  59 int main(int argc, char *argv[]) {
  60   if (argc > 1) {
  61     x<void>().a();
  62     z().a();
  63   }
  64 }