Re: [boost] [shifted_ptr] "new shifted<T>"

From: Phil Bouchard (philippe_at_[hidden])
Date: 2008-06-06 04:00:29

"Simonson, Lucanus J" <lucanus.j.simonson_at_[hidden]> wrote in message 
news:33E1C72C74DBE747B7B59C1740F7443703592F5F_at_orsmsx417.amr.corp.intel.com...

[...]

> Perhaps we can figure out how to overcome the compile error that caused
> you to add the cast, or figure out something you can cast the pointer to
> that will portably result in no loss of data, such as perhaps size_t.

Agreed.  The int cast is a quick fix to make everything work; there is no 
intent of keeping it the way it is ;)  Here is the following sample compiled 
using GCC for Windows:

#include <list>
#include <boost/numeric/interval.hpp>

using namespace std;
using namespace boost::numeric;

int main()
{
    list< interval<void *> > seg;

    seg.push_back(interval<void *>((void *)(10), (void *)(11)));
}

Y:/UNIX/local/bin/../lib/gcc/mingw32/3.4.5/../../../../include/boost/numeric/interval/checking.hpp: 
In static member function `static T 
boost::numeric::interval_lib::checking_base<T>::empty_lower() [with T = 
void*]':
Y:/UNIX/local/bin/../lib/gcc/mingw32/3.4.5/../../../../include/boost/numeric/interval/checking.hpp:88: 
instantiated from `static T 
boost::numeric::interval_lib::checking_no_empty<T, Checking, 
Exception>::empty_lower() [with T = void*, Checking = 
boost::numeric::interval_lib::checking_base<void*>, Exception = 
boost::numeric::interval_lib::exception_create_empty]'
Y:/UNIX/local/bin/../lib/gcc/mingw32/3.4.5/../../../../include/boost/numeric/interval/interval.hpp:269: 
instantiated from `void boost::numeric::interval<T, Policies>::set_empty() 
[with T = void*, Policies = 
boost::numeric::interval_lib::policies<boost::numeric::interval_lib::rounded_math<void*>, 
boost::numeric::interval_lib::checking_strict<void*> >]'
Y:/UNIX/local/bin/../lib/gcc/mingw32/3.4.5/../../../../include/boost/numeric/interval/interval.hpp:171: 
instantiated from `boost::numeric::interval<T, Policies>::interval(const T&, 
const T&) [with T = void*, Policies = 
boost::numeric::interval_lib::policies<boost::numeric::interval_lib::rounded_math<void*>, 
boost::numeric::interval_lib::checking_strict<void*> >]'
interval2.cpp:11:   instantiated from here
Y:/UNIX/local/bin/../lib/gcc/mingw32/3.4.5/../../../../include/boost/numeric/interval/checking.hpp:62: 
error: invalid static_cast from type `int' to type `void*'

-Phil