uu_wc 0.10.0

wc ~ (uutils) display newline, word, and byte counts for input
Documentation 
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// This file is part of the uutils coreutils package.
//
// For the full copyright and license information, please view the LICENSE
// file that was distributed with this source code.
use std::cmp::max;
use std::ops::{Add, AddAssign};

#[derive(Debug, Default, Copy, Clone)]
pub struct WordCount {
    pub bytes: usize,
    pub chars: usize,
    pub lines: usize,
    pub words: usize,
    pub max_line_length: usize,
}

impl Add for WordCount {
    type Output = Self;

    fn add(self, other: Self) -> Self {
        Self {
            bytes: self.bytes + other.bytes,
            chars: self.chars + other.chars,
            lines: self.lines + other.lines,
            words: self.words + other.words,
            max_line_length: max(self.max_line_length, other.max_line_length),
        }
    }
}

impl AddAssign for WordCount {
    fn add_assign(&mut self, other: Self) {
        *self = *self + other;
    }
}