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// { dg-options "-Wunused -W" }

#include 

#include 

void

f1 (int a, ...)

{

  va_list ap;

  va_start (ap, a);

  va_end (ap);

}

int

f2 (int a, ...)

{

  va_list ap;

  va_start (ap, a);

  int i = va_arg (ap, int);

  va_end (ap);

  return i;

}

struct A { int a; A (); virtual ~A (); };

struct B : virtual A { int b; };

struct B *

f3 (struct A *a)

{

  return dynamic_cast  (a);

}

struct A *

f4 (struct B *a)

{

  return static_cast  (a);

}

struct A *

f5 (struct B *a)

{

  return reinterpret_cast  (a);

}

struct A *

f6 (const struct A *a)

{

  return const_cast  (a);

}

int

f7 (long a)

{

  return (int) a;

}

int

f8 (long a)

{

  return int (a);

}

struct C

{

  operator unsigned int() { return 42; }

};

unsigned int

f9 ()

{

  C u;

  return u;

}

struct D

{

  operator int & ();

  operator const int & () const;

};

void foo (int &);

void foo (const int &);

void

f10 ()

{

  const D x = D ();

  foo (x);

}

int

f11 (int a)

{

  return typeid (a) == typeid (int);

}

struct E

{

  int e () {return 0;}

};

template 

int

f12 (E a)

{

  __decltype (a.e()) i;

  return i;

}

template <> int f12 (E);