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

From: David Abrahams (dave_at_[hidden])
Date: 2007-03-01 09:36:20

Thorsten Ottosen <thorsten.ottosen_at_[hidden]> writes:

> 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.

Which library?

> That behavior has changed in cvs head btw.

Which behavior?

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