Function xdelta3::decode

pub fn decode(input: &[u8], src: &[u8]) -> Option<Vec<u8>>

Function to decode the difference data

This function is used to decode the difference data. The data in src will be treated as "original" data and the data in input will be treated as "difference" or "patch" data. The returned Vec stores the data that has been patched

As opposed to the encode function, if you are building an application that applies patches or differential updates, this function should be used to patch or update the old file from the patch data. It's recommeded to check for the file integrity after doing the decode to prevent from creating potentially corrupted files

Here is a basic example to show how to use this function:

extern crate xdelta3;
use xdelta3::decode;

fn main() {
    let result = decode(&[214, 195, 196, 0, 0, 0, 13, 7, 0, 7, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8], &[1, 2, 4, 4, 7, 6, 7]);
    assert_eq!(result.unwrap().as_slice(), &[1, 2, 3, 4, 5, 6, 7]);
}