From 50bfc238169844fff8287efc48ee4da3076b2f78 Mon Sep 17 00:00:00 2001
From: Abhishek Chanda <abhishek.becs@gmail.com>
Date: Thu, 27 Oct 2016 15:23:19 +0100
Subject: [PATCH] Clarify that send_to might return an error in certain cases

Closes #34202
---
 src/libstd/net/udp.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libstd/net/udp.rs b/src/libstd/net/udp.rs
index c03ac496adb..559250adac5 100644
--- a/src/libstd/net/udp.rs
+++ b/src/libstd/net/udp.rs
@@ -67,6 +67,9 @@ pub fn recv_from(&self, buf: &mut [u8]) -> io::Result<(usize, SocketAddr)> {
     ///
     /// Address type can be any implementor of `ToSocketAddrs` trait. See its
     /// documentation for concrete examples.
+    /// This will return an error when the IP version of the local socket
+    /// does not match that returned from `ToSocketAddrs`
+    /// See https://github.com/rust-lang/rust/issues/34202 for more details.
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A)
                                      -> io::Result<usize> {