Trait FromHex 

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

A trait for converting hexadecimal encoded values

Required Methods

fn from_hex(&self) -> Result<Vec<u8>, FromHexError>

Converts the value of self, interpreted as hexadecimal encoded data, into an owned vector of bytes, returning the vector.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl FromHex for str

fn from_hex(&self) -> Result<Vec<u8>, 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_serialize;
use rustc_serialize::hex::{FromHex, ToHex};

fn main () {
    let hello_str = "Hello, World".as_bytes().to_hex();
    println!("{}", hello_str);
    let bytes = 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(&self) -> Result<Vec<u8>, FromHexError>

Implementors