Re: [Lilypond-auto] Issue 3041 in lilypond: Patch: Fix a few segfaulting cases in hara-kiri-group-spanner

[lilypond]

Comment #9 on issue 3041 by address@hidden: Patch: Fix a few segfaulting  
cases in hara-kiri-group-spanner
http://code.google.com/p/lilypond/issues/detail?id=3041

It has happened to me before that valid input was only ever valid because  
of magic.  It could be that calls to get_column to a non valid column still  
somehow spit out numbers.  It may be the 0 to INT_MAX range that is causing  
the issue.

The root of the segfault seems to be that this function is called on axis  
groups that lack left or right bounds that are items, no?  I think it'd be  
better to ensure they have bounds before and issue a nasty programming  
error if they don't.