Viewing file:  Wunused-var-3.C (1.12 KB) -rw-r--r--
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// { dg-options "-Wunused -W" }
#include <typeinfo>
#include <stdarg.h>
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 <B *> (a);
}
struct A *
f4 (struct B *a)
{
return static_cast <A *> (a);
}
struct A *
f5 (struct B *a)
{
return reinterpret_cast <A *> (a);
}
struct A *
f6 (const struct A *a)
{
return const_cast <A *> (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 <typename T>
int
f12 (E a)
{
__decltype (a.e()) i;
return i;
}
template <> int f12<int> (E);
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