Re: [Boost-users] [graph] set of edges

Subject: Re: [Boost-users] [graph] set of edges
From: Michael Fawcett (michael.fawcett_at_[hidden])
Date: 2009-03-17 11:22:01

On Mon, Mar 16, 2009 at 5:30 PM, Michael Fawcett
<michael.fawcett_at_[hidden]> wrote:
> On Mon, Mar 16, 2009 at 5:15 PM, Juan Antonio Farré Basurte
> <jafb_at_[hidden]> wrote:
>
> Please try not to top post per guidelines. Â I've lost the attributions
> unfortunately, but fixed the formatting a little.
>
>>> I meant for OutEdgeList, however I went back and tried vecS for
>>> EdgeList as well and all my tests still passed and my program output
>>> was still correct. Perhaps this was corrected in code but the docs
>>> weren't updated?
>>
>> I don't think so... I'm working with version 1.38 and I had a std::map with
>> edge_descriptor keys.
>> I passed this map, wrapped as an associative_property_map, and added to a
>> dynamic_properties object, to graph-reading functions.
>> When I traversed the map contents to do something useful with it, looks like
>> the descriptors where invalid. In some cases it just looked to do nothing.
>> In other cases I got segmentation fault. When I changed to listS, everything
>> worked all right.
>> In the documentation it just says that it's "not guarranted" to work. And
>> looks to be true. Works in some cases and not in others.
>
> It sounds like something assumes that those descriptors will not be
> invalidated unless removed. Â Maybe Andrew can chime in?
>
> I would guess it's working for me by accident since I'm never removing
> anything from the graphs I create. Â I'll make sure to keep my usage to
> listS for now.

Reposting with subject line changed.

--Michael Fawcett