> vector. The code is in the following:
>
> int member[12000] ;
> ..........
> for(j=0; j<nodes; j++) // nodes is the number of nodes in the graph
> {
> igraph_vector_set( &membership, j, (double) member [j] ); // member
> array stores the membership of vertices
> printf( "%f\n", (double)VECTOR(membership)[j] );
> }
> igraph_modularity( &graph, &membership, &modu, NULL );
>
> The vector membership is initialized correctly. But when running
> igraph_modularity() function, it reports the following errors:
>
> *** glibc detected *** ./modularity: malloc(): memory corruption (fast):
> 0x08084318 ***
> ======= Backtrace: =========
> /lib/i686/nosegneg/libc.so.6[0x45dbfc6e]
> /lib/i686/nosegneg/libc.so.6(__libc_calloc+0x94)[0x45dc0874]
> /usr/local/lib/libigraph.so.0(igraph_vector_init+0x33)[0xeb1143]
> /usr/local/lib/libigraph.so.0(igraph_modularity+0x5f)[0xf0600f]
> ./modularity[0x8048980]
> /lib/i686/nosegneg/libc.so.6(__libc_start_main+0xdc)[0x45d6ddec]
> ./modularity[0x8048691]
>
> So, I am a bit confused. Where is wrong?
> --
> Thanks
> zhengjun
>
> Graduate research assistant
> Dept of Computer Science and Engineering
> Lehigh University