Re: [igraph] [Fwd: Linking error underwindows]

[Gang Su]

Hi Garbor,

According to that thread, I changed mode from "Debug" to "Release", and 
solved the problem. I can build the application now, however, when I run 
it under windows, it halted and quited by itself.
Here's another very simple test i made. This algorithm will run in R 
with the same data, but just abort itself in C. Just curious what's 
going on there.

//The graph creation was fine, the line that failed was
igraph_layout_drl(&g, &locs, 0, &options, 0, 0);

It should work as the same graph obj works in R



/*test whether igraph is correctly linked*/

#include <stdio.h>
#include "igraph.h"
#include <iostream>

//link successful. It's actually working.


int main(int argc, char* argv[])
{
   //igraph_t g;
   //FILE *outfile;

   //igraph_barabasi_game(&g, 1000, /*m=*/2, /*outseq=*/0, 
/*outpref=*/0, /*directed=*/1);
   //igraph_simplify(&g, /*multiple=*/1, /*loops=*/0);
   //outfile=fopen("out.txt", "w");
   //igraph_write_graph_edgelist(&g, outfile);
   //fclose(outfile);
   //igraph_destroy(&g);
  
   int edgeArray[] = 
{0,2,6,17,7,19,18,19,3,21,9,21,12,22,5,24,3,25,6,25,16,25,20,29,21,29,28,31,10,32,8,33,19,33,6,34,11,34,9,42,37,44,18,45,35,45,46,47,7,48,32,48};

   igraph_t g;
   igraph_vector_t v;
   igraph_vector_init(&v, 52);
   for(int i=0; i<52; i++){
       VECTOR(v)[i] = edgeArray[i];
   }
   igraph_create(&g, &v, 0, 0);

   printf("this is working");
  
   long int vcount = igraph_vcount(&g);
   igraph_matrix_t locs;
   igraph_matrix_init(&locs, vcount, 2);

  
   igraph_layout_drl_options_t options;
   igraph_layout_drl_options_init(&options, IGRAPH_LAYOUT_DRL_COARSEN);

   //Force directed DRL
   igraph_layout_drl(&g, &locs, 0, &options, 0, 0);



   return 0;
}







Gábor Csárdi wrote:
> Hi Gang,
>
> maybe you can try to search for the error message, some other people
> had the for various libraries. See e.g.
> http://www.devmaster.net/forums/showthread.php?t=6404
>
> Best,
> Gabor
>
> On Thu, Nov 5, 2009 at 10:11 PM, Gang Su <address@hidden> wrote:
>   
> > And this happened when i was using the function
> >
> > igraph_layout_drl_options_init
> >
> > Hi developers,
> >
> > I was building igraph in visual C++ 2008. Everything worked fine, but when i
> > was trying the DRL layout, i got the following error:
> >
> > 1>Linking...
> > 1>igraph.lib(drl_layout.obj) : error LNK2001: unresolved external symbol
> > __imp___invalid_parameter_noinfo
> > 1>igraph.lib(drl_graph.obj) : error LNK2001: unresolved external symbol
> > __imp___invalid_parameter_noinfo
> > 1>igraph.lib(DensityGrid.obj) : error LNK2001: unresolved external symbol
> > __imp___invalid_parameter_noinfo
> >
> > This is all the error message i got. Does anyone have any idea why this
> > linking failed?
> > Thanks!
> >
> > Gang
> >
> >
> > _______________________________________________
> > igraph-help mailing list
> > address@hidden
> > http://lists.nongnu.org/mailman/listinfo/igraph-help
> >
> >
> >     
>
>
>
>