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| author | Tshepang Lekhonkhobe <tshepang@gmail.com> | 2015-12-03 21:09:21 +0200 |
|---|---|---|
| committer | Tshepang Lekhonkhobe <tshepang@gmail.com> | 2015-12-06 22:12:38 +0200 |
| commit | 8569ef25913f7ed2410e348eced31e48c04258b7 (patch) | |
| tree | 59c2be51da8ab286a34b6f8b5e5c44711b945cab /src/libstd/net | |
| parent | ac0e84522437331f9a06d04a5842acf0234cc86e (diff) | |
| download | rust-8569ef25913f7ed2410e348eced31e48c04258b7.tar.gz rust-8569ef25913f7ed2410e348eced31e48c04258b7.zip | |
doc: add example for std::net::lookup_addr
Diffstat (limited to 'src/libstd/net')
| -rw-r--r-- | src/libstd/net/mod.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/libstd/net/mod.rs b/src/libstd/net/mod.rs index 383dce737f5..83a976c42c6 100644 --- a/src/libstd/net/mod.rs +++ b/src/libstd/net/mod.rs @@ -134,6 +134,22 @@ pub fn lookup_host(host: &str) -> io::Result<LookupHost> { /// This function may perform a DNS query to resolve `addr` and may also inspect /// system configuration to resolve the specified address. If the address /// cannot be resolved, it is returned in string format. +/// +/// # Examples +/// +/// ```no_run +/// #![feature(lookup_addr)] +/// #![feature(ip_addr)] +/// +/// use std::net::{self, Ipv4Addr, IpAddr}; +/// +/// let ip_addr = "8.8.8.8"; +/// let addr: Ipv4Addr = ip_addr.parse().unwrap(); +/// let hostname = net::lookup_addr(&IpAddr::V4(addr)).unwrap(); +/// +/// println!("{} --> {}", ip_addr, hostname); +/// // Output: 8.8.8.8 --> google-public-dns-a.google.com +/// ``` #[unstable(feature = "lookup_addr", reason = "recent addition", issue = "27705")] pub fn lookup_addr(addr: &IpAddr) -> io::Result<String> { |