Re: [Boost-users] split() differences between 1.32.0 and 1.33.0

From: Pavol Droba (droba_at_[hidden])
Date: 2005-11-15 02:11:58

Hi,

There was a serious discussion about the semantics of split()
function some time ago. According to this discussion, the behaviour
has been slightly changed.

The result can be described as follows:
split() now always returns n+1 segments where n is a number of
delimiters. Even if the segments are empty.

So that new behavious is slightly different, but it should be easy
to fix your code. If this is a problem for you, I suggest you
to try to replace boost/algorithm/string/find_iterator.hpp with the
one from the version 1.32. It should not break the other code.

Best Regards,
Pavol.

On Mon, Nov 14, 2005 at 03:16:17PM -0600, Dave Dribin wrote:
> Hello,
> 
> I recently upgrade from Boost 1.32.0 to 1.33.0, since I just upgraded  
> to Mac OS X 10.4 from 10.3.  I noticed a slightly different behavior  
> in boost::algorithm::split between these two versions.  If you have a  
> trailing delimiter, like:
> 
>    vector<string> results;
>    ba::split(results, ",foo,", ba::is_any_of(","));
> 
> This returns 2 elements in 1.32.0 and 3 elements in 1.33.0.  Was this  
> changed intentionally?  It does seem to make more sense to return 3  
> elements, but it currently breaks my program.
> 
> -Dave
> 
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