addr-of-overloaded-function-casting.cpp
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// RUN: %clang_cc1 -fsyntax-only -verify %s
void g();
void f(); // expected-note 11{{candidate function}}
void f(int); // expected-note 11{{candidate function}}
template <class T>
void t(T); // expected-note 3{{candidate function}} \
// expected-note 3{{candidate template ignored: could not match 'void' against 'int'}}
template <class T>
void t(T *); // expected-note 3{{candidate function}} \
// expected-note 3{{candidate template ignored: could not match 'void' against 'int'}}
template<class T> void u(T);
int main()
{
{ bool b = (void (&)(char))f; } // expected-error{{does not match required type}}
{ bool b = (void (*)(char))f; } // expected-error{{does not match required type}}
{ bool b = (void (&)(int))f; } //ok
{ bool b = (void (*)(int))f; } //ok
{ bool b = static_cast<void (&)(char)>(f); } // expected-error{{does not match}}
{ bool b = static_cast<void (*)(char)>(f); } // expected-error{{address of overloaded function}}
{ bool b = static_cast<void (&)(int)>(f); } //ok
{ bool b = static_cast<void (*)(int)>(f); } //ok
{ bool b = reinterpret_cast<void (&)(char)>(f); } // expected-error{{cannot resolve}}
{ bool b = reinterpret_cast<void (*)(char)>(f); } // expected-error{{cannot resolve}}
{ bool b = reinterpret_cast<void (*)(char)>(g); } //ok
{ bool b = static_cast<void (*)(char)>(g); } // expected-error{{not allowed}}
{ bool b = reinterpret_cast<void (&)(int)>(f); } // expected-error{{cannot resolve}}
{ bool b = reinterpret_cast<void (*)(int)>(f); } // expected-error{{cannot resolve}}
{ bool b = (int (&)(char))t; } // expected-error{{does not match}}
{ bool b = (int (*)(char))t; } // expected-error{{does not match}}
{ bool b = (void (&)(int))t; } //ok
{ bool b = (void (*)(int))t; } //ok
{ bool b = static_cast<void (&)(char)>(t); } //ok
{ bool b = static_cast<void (*)(char)>(t); } //ok
{ bool b = static_cast<void (&)(int)>(t); } //ok
{ bool b = static_cast<void (*)(int)>(t); } //ok
{ bool b = reinterpret_cast<void (&)(char)>(t); } // expected-error{{cannot resolve}}
{ bool b = reinterpret_cast<void (*)(char)>(t); } // expected-error{{cannot resolve}}
{ bool b = reinterpret_cast<int (*)(char)>(g); } //ok
{ bool b = static_cast<int (*)(char)>(t); } // expected-error{{cannot be static_cast}}
{ bool b = static_cast<int (&)(char)>(t); } // expected-error{{does not match required}}
{ bool b = static_cast<void (&)(char)>(f); } // expected-error{{does not match}}
{
// The error should be reported when casting overloaded function to the
// compatible function type (not to be confused with function pointer or
// function reference type.)
typedef void (FnType)(int);
FnType a = static_cast<FnType>(f); // expected-error{{address of overloaded function}}
FnType b = (FnType)(f); // expected-error{{address of overloaded function}}
}
}