Re: [Boost-users] [multi_array] Assertion when resizing empty array

Subject: Re: [Boost-users] [multi_array] Assertion when resizing empty array
From: Mikhail Levin (svarneticist_at_[hidden])
Date: 2009-07-22 18:35:05

John Reid <j.reid <at> mail.cryst.bbk.ac.uk> writes:

> 
> Resizing an empty array no longer seems to work. My code worked fine 
> with boost 1.38, now it causes an assertion with the latest boost trunk 
> from svn. The code is:
> 
> #include <boost/multi_array.hpp>
> 
> int
> main( int argc, char * argv[] ) {
> 	boost::multi_array< double, 2 > a;
> 	a.resize( boost::extents[2][3] );
> 	return 0;
> }
> 

> 
> I updated from svn today.
> 
> I think the code creates a view on the old data in order to retain it. 
> The assertion happens because this view is empty.
> 
> Regards,
> John.
> 

It appears to be a bug.  See
http://www.boost.org/development/tests/trunk/developer/issues_release_.html#multi_array
Hopefully it will be fixed soon.
I had same problem.  I rolled boost/multi_array.hpp back to revision 41257 and
it works for me now.

Mikhail