Thank you so very much at last this function ran successfully. :)
On Wednesday, 26 February 2014 7:36 PM, Gábor Csárdi <[email protected]>
wrote:
You need to initialize nrgeo as well. Could you please read the documentation
of igraph_get_all_shortest_paths() at
http://igraph.org/c/doc/igraph-Structural.html#igraph_get_all_shortest_paths ?
G.
On Wed, Feb 26, 2014 at 9:25 AM, Sana Rahim <[email protected]> wrote:
Even after initializing the res as you mentioned, it is still giving the same
segmentation fault. Please guide.
>
>Regards
>
>
>
>
>
>On Wednesday, 26 February 2014 6:14 PM, Tamás Nepusz <[email protected]> wrote:
>
>The “res” vector that you pass in to igraph_get_all_shortest_paths must be
>initialized as well using igraph_vector_ptr_init(&res, 0);
>
>--
>T.
>
>
>On Wednesday, 26 February 2014 at
11:32, Sana Rahim wrote:
>
>> Thank you for reply. But when i initialize it i get segmentation fault.
>>
>> #include<igraph.h>
>> void main()
>> {
>> igraph_t graph;
>> igraph_vector_t v;
>> igraph_vector_ptr_t res;
>> igraph_vector_t nrgeo;
>>
>> igraph_real_t edges[] = {1, 2, 1, 4, 2, 3, 3, 7, 4, 5, 5, 6, 6, 9, 7, 8, 8,
>> 9};
>>
>> igraph_vector_view(&v, edges, sizeof(edges)/sizeof(double));
>>
>> igraph_create(&graph,&v, 0, IGRAPH_UNDIRECTED);
>>
>>
>> igraph_get_all_shortest_paths(&graph, &res, &nrgeo, 1, igraph_vss_seq(2,8),
>> IGRAPH_ALL);
>>
>> igraph_destroy(&graph);
>>
>> }
>>
>> Regards,
>>
>>
>> On Tuesday, 25 February 2014 6:52 PM, Gábor Csárdi <[email protected]
>> (mailto:[email protected])> wrote:
>> See http://igraph.org/c/doc/igraph-Iterators.html
>>
>> Gabor
>>
>>
>> On Mon, Feb 24, 2014 at 11:45 PM, Sana Rahim <[email protected]
>> (mailto:[email protected])> wrote:
>> > Hi, thanks for immediate reply. How should I initialize vs? When i
>> > initialize it like igraph_vs_t vs=3 or give value to vs , it says invalid
>> > initializer.
>> >
>> > Regards
>> >
>> >
>> > On Tuesday, 25 February 2014 1:28 AM, Gábor Csárdi <[email protected]
>> > (mailto:[email protected])> wrote:
>> > You never initialize vs.
>> >
>> > G.
>> >
>> >
>> > On Mon, Feb 24, 2014 at 2:35 PM, Sana Rahim <[email protected]
>> > (mailto:[email protected])> wrote:
>> > > Hi, when I run the following code i get this error Error at
>> > > iterators.c:769 :Cannot create iterator, invalid selector, Invalid value
>> > > Aborted.
>> > > igraph_t graph;
>> > > igraph_vector_t v;
>> > > igraph_vector_ptr_t vertices;
>> > > igraph_vector_ptr_t edges1;
>> > > igraph_vs_t vs;
>> > >
igraph_matrix_t res;
>> > > igraph_vector_ptr_t res1;
>> > > igraph_vector_t nrgeo;
>> > > igraph_real_t edges[] = {1, 2, 1, 4, 2, 3, 3, 7, 4, 5, 5, 6, 6, 9, 7, 8,
>> > > 8, 9};
>> > > igraph_vector_view(&v, edges, sizeof(edges)/sizeof(double));
>> > > igraph_create(&graph,&v, 0, IGRAPH_UNDIRECTED);
>> > > igraph_get_all_shortest_paths(&graph, &res1, &nrgeo, 1, vs, IGRAPH_ALL);
>> > > igraph_destroy(&graph);
>> > >
>> > > Where am I making a mistake, please help.
>> > >
>> > > Regards
>> > >
>> > > _______________________________________________
>> > > igraph-help mailing list
>> > > [email protected] (mailto:[email protected])
>> > > https://lists.nongnu.org/mailman/listinfo/igraph-help
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
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>> > [email protected] (mailto:[email protected])
>> > https://lists.nongnu.org/mailman/listinfo/igraph-help
>>
>>
>>
>>
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