Function main

cpp_11/002_grammar_nullptr.cpp:41–50

#define nullptr __get_nullptr_t()
 
int main(int argc, char *argv[])
{
	char *pch = nullptr;	// ok, __get_nullptr_t() => nullptr_t::nullptr_t(0) => template <class _Tp> nullptr_t::operator _Tp* () const
	int *pint = nullptr;	// ok, __get_nullptr_t() => nullptr_t::nullptr_t(0) => template <class _Tp> nullptr_t::operator _Tp* () const
	bool    b = nullptr;	// ok, __get_nullptr_t() => nullptr_t::nullptr_t(0) => nullptr_t::operator int __nat::*() const
	//int     n = nullptr;	// error: cannot convert 'myname::nullptr_t' to 'int' in initialization
	int Test::*p = nullptr;	// ok, __get_nullptr_t() => nullptr_t::nullptr_t(0) => template <class _Tp, class _Up> operator _Tp _Up::* () const
	void (Test::*pfn)(int, char) = nullptr;	// ok, __get_nullptr_t() => nullptr_t::nullptr_t(0) => template <class _Tp, class _Up> operator _Tp _Up::* () const
	return 0;
}