Re: [boost] [test][range][BBv2?] issues with sub_range test

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2007-02-28 17:30:29

David Abrahams wrote:
> I'm seeing the following:
> 
> 1. The test appears to do invoke undefined behavior, almost knowingly.
>    On line 103, it asks whether a singular range (so named, even) is
>    empty.  This range is made up of singular iterators, the comparison
>    of which invokes undefined behavior.  In a debug build on VC8 this
>    fires an assertion ("string iterators incompatible"). This problem
>    should be fixed.  
>    
>    Every major standard library now has some iterator checking.  We
>    should do debug-mode tests of our code with iterator checking on.
> 

I've removed this line and similar from the test. 1.24 has been under 
way so long now, so I can't remember what's what anymore, but I think 
that the library allows a few operations even when the iterators are 
singular.

That behavior has changed in cvs head btw.

-Thorsten