1 use std::fs::File; 2 use std::io::prelude::*; 3 4 use runfiles::Runfiles; 5 main()6fn main() { 7 let r = Runfiles::create().unwrap(); 8 9 let mut f = File::open(r.rlocation("examples/hello_runfiles/hello_runfiles.rs")).unwrap(); 10 11 let mut buffer = String::new(); 12 f.read_to_string(&mut buffer).unwrap(); 13 14 println!("This program's source is {} characters long.", buffer.len()); 15 } 16