Function igraph_matrix_char_init_array 

pub unsafe extern "C" fn igraph_matrix_char_init_array(
    m: *mut igraph_matrix_char_t,
    data: *const c_char,
    nrow: igraph_int_t,
    ncol: igraph_int_t,
    storage: igraph_matrix_storage_t,
) -> igraph_error_t