Re: [Boost-users] Specifying starting vertex in depth_first_search

From: Aaron Windsor (aaron.windsor_at_[hidden])
Date: 2008-07-18 08:24:35

On Thu, Jul 17, 2008 at 10:38 PM, Hiren <hirenvt_at_[hidden]> wrote:
> I have also tried depth_first_visit. However, I still have to specify the
> color map which I was not successful in getting to work.
>
> David Abrahams wrote:
>>
>> on Thu Jul 17 2008, "Hiren Patel" <hirenvt-AT-gmail.com> wrote:
>>
>>
>>>
>>> I'm trying to use depth_first_search() and I want to specify the start
>>> node.
>>
>> try depth_first_visit
>>

Hi Hiren,

This isn't a bug. The code from the post you linked to calls
depth_first_search like "depth_first_search(g, visitor(vis),
&color[0], root ); ", which mixes the BGL named parameter syntax
(visitor(vis)) with positional parameters (&color[0], root). You have
to use one or the other - either specify all of your parameters using
named parameters or use all positional parameters. If you change the
OP's code so that it calls "depth_first_search(g, vis, &color[0],
root)" instead, it will compile fine.

You didn't give much detail, but I assume you're doing something similar?

Regards,
Aaron