From 286f82f7451258a8db0869058f27e5bd34ee1b72 Mon Sep 17 00:00:00 2001
From: Stefan Schindler <dns2utf8@estada.ch>
Date: Tue, 5 Sep 2017 17:23:38 +0200
Subject: [PATCH] Second example with zip

---
 src/range.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/range.rs b/src/range.rs
index 3ac00aa01..7a0805076 100644
--- a/src/range.rs
+++ b/src/range.rs
@@ -19,6 +19,25 @@ use iter::internal::*;
 use std::ops::Range;
 
 /// Parallel iterator over a range
+/// Implemented for `u32`, `i32`, `usize` and `isize`.
+///
+/// ```
+/// use rayon::prelude::*;
+///
+/// let p = (0..25usize).into_par_iter()
+///                   .zip(0..25usize)
+///                   .filter(|&(x, y)| x % 5 == 0 || y % 5 == 0)
+///                   .map(|(x, y)| x * y)
+///                   .fold(|| 0, |acc, cur| acc + cur)
+///                   .sum::<usize>();
+///
+/// let s = (0..25usize).zip(0..25)
+///                   .filter(|&(x, y)| x % 5 == 0 || y % 5 == 0)
+///                   .map(|(x, y)| x * y)
+///                   .sum();
+///
+/// assert_eq!(p, s);
+/// ```
 #[derive(Debug)]
 pub struct Iter<T> {
     range: Range<T>,