torrust-index 3.0.0

A BitTorrent Index
Documentation 
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use std::fmt::Write;
use std::num::ParseIntError;

#[must_use]
pub fn from_bytes(bytes: &[u8]) -> String {
    let mut s = String::with_capacity(2 * bytes.len());

    for byte in bytes {
        write!(s, "{byte:02X}").unwrap();
    }

    s
}

/// Encodes a String into Hex Bytes
///
/// # Errors
///
/// This function will return an error if unable to encode into Hex
pub fn into_bytes(s: &str) -> Result<Vec<u8>, ParseIntError> {
    (0..s.len())
        .step_by(2)
        .map(|i| u8::from_str_radix(&s[i..i + 2], 16))
        .collect()
}