gistfile1.rs

fn fetchall(&mut self)->Vec<Vec<Option<c_str::CString>>>{
        let mut v = Vec::new();
        loop{
            match self.step(){ //we are not borrowing, hence no &...ref...
                Some(row) => v.push(row.clone()), //without cloning, all rows will be same
                _ => break
            }
        }
        return v;
}

 fn step(&mut self)->Option<Vec<Option<c_str::CString>>>{
        
        let mut v = vec![];
        unsafe{
            match sqlite3_step(self.stmt){
                SQLITE_DONE => {println!("done");return None;},
                SQLITE_ROW =>  {
                    for i in range(0i32, 4){
                        let col_name = sqlite3_column_text(self.stmt, i);
                        if col_name.is_null(){
                            v.push(None);
                        }
                            
                        let name = c_str::CString::new(col_name, false);
                        v.push(Some(name)); //cant extract &str here since it's lifetime is shorter
                                            //than v; 
                    }
                    return Some(v);
                },
                _ => return None
            }//match ends
        }
    }