[igraph] matrix problem

[Guilherme Ferraz de Arruda]

Hi,
I have used:

igraph_matrix_t w_adj;
igraph_matrix_init(&w_adj, (long int)dados->i, (long int)dados->i);

where dados->i = 151.

But i got Segmentation Fault.
What is wrong?

i tried to use
igraph_matrix_init(&w_adj, 151, 151);

and got the same error.

What is wrong?
it seens to be so simple to have an erros, but i got this error at
this line by debugging.

Thanks for all.

Guilherme.