pub fn read_line_input<T, P>(path: P) -> io::Result<Vec<T>>
where
    P: AsRef<Path>,
    T: FromStr,
    <T as FromStr>::Err: Debug,
{
    let file = File::open(path)?;

    let lines = io::BufReader::new(file).lines();
    let size_hint = lines.size_hint();

    // use upper bound size hint if available, otherwise use lower bound
    let mut results = Vec::with_capacity(size_hint.1.unwrap_or(size_hint.0));
    for line in lines {
        // the last one is technically not an io error, but I can't be bothered to create a separate error type just for this
        results.push(line?.parse().map_err(|parse_err| {
            io::Error::new(
                io::ErrorKind::InvalidData,
                format!(
                    "input could not be parsed into desired type - {:?}",
                    parse_err
                ),
            )
        })?)
    }

    Ok(results)
}
/// Reads the file as lines, parsing each of them into desired type.
Reads the file as lines, parsing each of them into desired type.
Reads the file as lines parsing each of them into desired type .
pub fn read_line_input<T, P>(path: P) -> io::Result<Vec<T>>
where
    P: AsRef<Path>,
    T: FromStr,
    <T as FromStr>::Err: Debug,
{
    let file = File::open(path)?;
    let lines = io::BufReader::new(file).lines();
    let size_hint = lines.size_hint();
    // use upper bound size hint if available, otherwise use lower bound
    let mut results = Vec::with_capacity(size_hint.1.unwrap_or(size_hint.0));
    for line in lines {
        // the last one is technically not an io error, but I can't be bothered to create a separate error type just for this
        results.push(line?.parse().map_err(|parse_err| {
            io::Error::new(
                io::ErrorKind::InvalidData,
                format!(
                    "input could not be parsed into desired type - {:?}",
                    parse_err
                ),
            )
        })?)
    }
    Ok(results)
}
pub fn read_line_input < T , P > ( path : P ) -> io :: Result < Vec < T > > where P : AsRef < Path > , T : FromStr , < T as FromStr > :: Err : Debug , { let file = File :: open ( path ) ? ; let lines = io :: BufReader :: new ( file ) . lines ( ) ; let size_hint = lines . size_hint ( ) ; // use upper bound size hint if available, otherwise use lower bound let mut results = Vec :: with_capacity ( size_hint . 1 . unwrap_or ( size_hint . 0 ) ) ; for line in lines { // the last one is technically not an io error, but I can't be bothered to create a separate error type just for this results . push ( line ? . parse ( ) . map_err ( | parse_err | { io :: Error :: new ( io :: ErrorKind :: InvalidData , format ! ( " " parse_err ) , ) } ) ? ) } Ok ( results ) }
Reads the file as lines, parsing each of them into desired type.
Reads the file as lines parsing each of them into desired type .
path
P
path
P