void main(string[] args){
    var test = new Test();
}

public class Test : HashTable<string,string>
{
    public Test(){
        base(str_hash,str_equal);
    }
}

/*
/home/yannick/Documents/main.vala.c: In function ‘test_new’:
/home/yannick/Documents/main.vala.c:42:2: error: too few arguments to function ‘g_hash_table_new_full’
  self = (Test*) g_hash_table_new_full (_tmp0_, _tmp1_);
  ^
In file included from /usr/include/glib-2.0/glib.h:52:0,
                 from /home/yannick/Documents/main.vala.c:5:
/usr/include/glib-2.0/glib/ghash.h:62:13: note: declared here
 GHashTable* g_hash_table_new_full          (GHashFunc       hash_func,
             ^
error: cc exited with status 256
Compilation failed: 1 error(s), 1 warning(s)

*/