From 4797d8446c73eb8ca96d29aec336787f719a071c Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Sun, 18 Jun 2017 17:31:06 -0700
Subject: [PATCH] Add doc example for `NulError`.

---
 src/libstd/ffi/c_str.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index 8a7757fde882b..bedd5f524c789 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -152,6 +152,14 @@ pub struct CStr {
 /// in the vector provided.
 ///
 /// [`CString::new`]: struct.CString.html#method.new
+///
+/// # Examples
+///
+/// ```
+/// use std::ffi::{CString, NulError};
+///
+/// let _: NulError = CString::new(b"f\0oo".to_vec()).unwrap_err();
+/// ```
 #[derive(Clone, PartialEq, Eq, Debug)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct NulError(usize, Vec<u8>);