Re: Borland 5 and indirect_iterator

--- In Boost-Users@yahoogroups.com, David Abrahams wrote:

Stephen Love writes:

...

Hi all,

Using Borland C++Builder5 (which has bcc32 5.5.1) I've attempted the tests for indirect_iterator which compile fine. However, the following fails:

list< shared_ptr< int > > ctr;

void foo( int x ) { }

for_each( make_indirect_iterator( ctr.begin() ), make_indirect_iterator( ctr.end() ), foo );

with the first error being:

[C++ Error] iterator.h(125): E2404 Dependent type qualifier 'shared_ptr<int>' has no member type named 'difference_type'

which then causes a failure to instantiate the iterator_traits. I'm no template guru, so I can make the full error list available if required. Anyone know what's going on?

The current official Boost indirect_iterator doesn't work with smart pointers as advertised. A much improved easier-to-use iterator adaptor library, which does, can be found in the Boost Sandbox CVS:

http://www.boost.org/more/mailing_lists.htm#sandbox

See the boost/iterator and libs/iterator subdirectories.

Documentation at:

http://www.boost-consulting.com/writing/facade-and-adaptor.html

It will replace the existing iterator adaptors before the next Boost release.

HTH, -- Dave Abrahams Boost Consulting www.boost-consulting.com

Sounds like the solution I've been looking for today. Any news on when the next release of boost will be that will include this? Regards, Drew Tennenbaum