rust_book_code 0.2.1

The code of rust book
Documentation 
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mod panic;
mod result;

pub fn panic() {
    // panic::panic_demo();
    // panic::index_out_bounds();
}

pub fn result() {
    result::open_file();
    result::recoverable_errors();
    result::unwrap_or_else();
    result::unwrap_and_expect();
    result::propagate_errors();
    result::propagate_errors_shortcut();
    result::shortcut_chains();
    result::read_to_string();
    result::last_char()
}