From 68d05b2a073d2679ec1621ea1ebc49b7814cf250 Mon Sep 17 00:00:00 2001
From: Josh Stone <jistone@redhat.com>
Date: Wed, 18 Oct 2017 23:12:37 -0700
Subject: impl FromIterator<()> for ()

This just collapses all unit items from an iterator into one.  This is
more useful when combined with higher-level abstractions, like
collecting to a `Result<(), E>` where you only care about errors:

```rust
use std::io::*;
data = vec![1, 2, 3, 4, 5];
let res: Result<()> = data.iter()
    .map(|x| writeln!(stdout(), "{}", x))
    .collect();
assert!(res.is_ok());
```
---
 src/libcore/lib.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libcore/lib.rs')

diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
index 69612bd2a32..dc7ec29ce45 100644
--- a/src/libcore/lib.rs
+++ b/src/libcore/lib.rs
@@ -190,3 +190,4 @@ pub mod fmt;
 mod char_private;
 mod iter_private;
 mod tuple;
+mod unit;
-- 
cgit 1.4.1-3-g733a5