Re: [Boost-users] BGL: Problem to compile components_on_edgelist.cpp example.

6 May 2010

      I got the recent revision 61803.
The compilation is ok but the code is crashing on the line:
72   incremental_components(g, ds);
------------- SNIP --------------------
libs/graph/example% ./components_on_edgelist.x
An undirected graph (edge list):
(0,1) (1,4) (4,0) (2,5)

Segmentation fault
------------END SNIP------------------

SO, what is the reason?

Thanks.
Arman.
On Wed, May 5, 2010 at 8:51 PM, Jeremiah Willcock wrote:
...
On Wed, 5 May 2010, arm2arm wrote:
...
Hello, I cannot compile the components_on_edgelist.cpp example with gcc
4.5/4.2 and VC++2009. I am using Boost 1.42
It trows errors on
...
c:\boost\include\boost-1_42\boost\graph\incremental_components.hpp(178) :
error C2825: 'ParentIterator': must be a class or namespace when followed
by
'::'
1>
c:\boost\include\boost-1_42\boost\graph\incremental_components.hpp(141) :
see reference to function template instantiation 'void
boost::component_index<IndexType>::build_index_lists(ParentIterator,const
ElementIndexMap &)' being compiled
1>        with
1>        [
1>            IndexType=int,
1>            ParentIterator=const unsigned int *,
1>            T=size_t,
1>            ElementIndexMap=boost::typed_identity_property_map
1>        ]
and more...
Are there some work around ?
Actually I would like to construct disjoint sets based on vector<Edge>,
where Edge is pair.
I fixed the various issues you are probably seeing with that example in the
trunk just now; that version should work better.  See if your code works
with the new version.
-- Jeremiah Willcock
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-- 
------------------------------------------
Dr Arman Khalatyan,
Observatoire Astronomique de Marseille-Provence
Laboratoire d'Astrophysique de Marseille
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