Bypass the overload of the address-of operator

[=?iso-8859-1?q?Tom=E1s_=D3_h=C9ilidhe?=]

I can recall a little trick for getting the address of an object and
bypassing any user-defined overload of the addressof operator. I think it
was something like:

T *p = reinterpret_cast<T*>( &reinterpret_cast<char&>(obj) );

Is that it exactly, or are people using something else?

--
Tomás Ó hÉilidhe

[jkherciueh]

Tomás Ó hÉilidhe wrote:

>
I can recall a little trick for getting the address of an object and
bypassing any user-defined overload of the addressof operator. I think it
was something like:

T *p = reinterpret_cast<T*>( &reinterpret_cast<char&>(obj) );

Is that it exactly, or are people using something else?

Almost:

// stolen from Boost:
template < typename T >
T * address_of (T & t) {
return (
reinterpret_cast<T*>(
& const_cast<char&>(
reinterpret_cast<const volatile char &>( t ) ) ) );
}

Best

Kai-Uwe Bux