fn read_integer(state : &mut State) {
    let mut input = String::new();
    if let Ok(_) = io::stdin().read_line(&mut input) {
        if let Ok(value) = input.trim().parse::<i64>() {
            state.stack.push(value);
            return;
        }
    }
    state.stack.push(0);
}
// read_integer reads a number from the commandline
read_integer reads a number from the commandline
read_integer reads a number from the commandline
fn read_integer(state : &mut State) {
    let mut input = String::new();
    if let Ok(_) = io::stdin().read_line(&mut input) {
        if let Ok(value) = input.trim().parse::<i64>() {
            state.stack.push(value);
            return;
        }
    }
    state.stack.push(0);
}
fn read_integer ( state : & mut State ) { let mut input = String :: new ( ) ; if let Ok ( _ ) = io :: stdin ( ) . read_line ( & mut input ) { if let Ok ( value ) = input . trim ( ) . parse :: < i64 > ( ) { state . stack . push ( value ) ; return ; } } state . stack . push ( 0 ) ; }
read_integer reads a number from the commandline
read_integer reads a number from the commandline
state
&mut State
state
&mut State