Hmm. I use VC7.1 too. however I realize now that I made a typo in the
code I posted. :(
I had put the implementation in the header (hence the lack of scope for
unspecified_bool_type in my previous post), and then I needed no casts.
(And just made the split to .inl when posting).
Could you try that? I.e put this in OSGFieldContainerPtrImpl.h:
operator unspecified_bool_type() const
{
return !*this ? 0 : &FieldContainerPtrBase::_storeP;
}
/Marcus
Chad Austin wrote:
Hi all,
I had to change my copy to get it to build in VC7.1. Here's the diff:
inline
-FieldContainerPtrBase::operator unspecified_bool_type() const
+FieldContainerPtrBase::operator
FieldContainerPtrBase::unspecified_bool_type()
const
{
- return !*this ? 0 : (unspecified_bool_type)&_storeP;
+ return !*this ? 0 : &FieldContainerPtrBase::_storeP;
}
C-style casts (and most casts in general) smell bad. ;)
Chad
Marcus Lindblom wrote:
Dirk Reiners wrote:
Hi Marcus,
I had to change it a little bit (add a typecast) for gcc 3.4, let's see
what the dailybuild says for the other platforms. I'm not toally happy
with it (casting a pointer to a member to a pointer to method is
probably not a good idea, even if it's never going to be used), but it's
worth a try.
As I understand it, unspecified_bool_type is a pointer to a member (a
uint8-ptr in a fcptrbase object), not a method, as there are no
function call parenthesis in the definition of the type. Strange then,
that you should need a cast but boost doesn't need one (or perhaps one
of the other ifdef-cases are used for gcc).
/Marcus
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