Trait FromHex

pub trait FromHex {
    // Required method
    fn from_hex<T: FromIterator<u8>>(&self) -> Result<T, FromHexError>;
}

A from-hex conversion trait.

Required Methods

fn from_hex<T: FromIterator<u8>>(&self) -> Result<T, FromHexError>

Converts the value of self, interpreted as hexadecimal encoded data, into an owned value constructed from an iterator of bytes.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromHex for str

fn from_hex<T: FromIterator<u8>>(&self) -> Result<T, FromHexError>

Convert any hexadecimal encoded string (literal, @, &, or ~) to the byte values it encodes.

You can use the String::from_utf8 function to turn a Vec<u8> into a string with characters corresponding to those values.

Example

This converts a string literal to hexadecimal and back.

extern crate rustc_hex;
use rustc_hex::{FromHex, ToHex};

fn main () {
    let hello_str: String = "Hello, World".as_bytes().to_hex();
    println!("{}", hello_str);
    let bytes: Vec<u8> = hello_str.from_hex().unwrap();
    println!("{:?}", bytes);
    let result_str = String::from_utf8(bytes).unwrap();
    println!("{}", result_str);
}

impl<'a, T: ?Sized + FromHex> FromHex for &'a T

fn from_hex<U: FromIterator<u8>>(&self) -> Result<U, FromHexError>

Implementors