| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/ipnet-2.7.2/src/ipext.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>ipext.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../ipnet/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../ipnet/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="doccomment">//! Extensions to the standard IP address types for common operations. |
| //! |
| //! The [`IpAdd`], [`IpSub`], [`IpBitAnd`], [`IpBitOr`] traits extend |
| //! the `Ipv4Addr` and `Ipv6Addr` types with methods to perform these |
| //! operations. |
| |
| </span><span class="kw">use </span>std::cmp::Ordering::{Less, Equal}; |
| <span class="kw">use </span>std::iter::{FusedIterator, DoubleEndedIterator}; |
| <span class="kw">use </span>std::mem; |
| <span class="kw">use </span>std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; |
| |
| <span class="doccomment">/// Provides a `saturating_add()` method for `Ipv4Addr` and `Ipv6Addr`. |
| /// |
| /// Adding an integer to an IP address returns the modified IP address. |
| /// A `u32` may added to an IPv4 address and a `u128` may be added to |
| /// an IPv6 address. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::{Ipv4Addr, Ipv6Addr}; |
| /// use ipnet::IpAdd; |
| /// |
| /// let ip0: Ipv4Addr = "192.168.0.0".parse().unwrap(); |
| /// let ip1: Ipv4Addr = "192.168.0.5".parse().unwrap(); |
| /// let ip2: Ipv4Addr = "255.255.255.254".parse().unwrap(); |
| /// let max: Ipv4Addr = "255.255.255.255".parse().unwrap(); |
| /// |
| /// assert_eq!(ip0.saturating_add(5), ip1); |
| /// assert_eq!(ip2.saturating_add(1), max); |
| /// assert_eq!(ip2.saturating_add(5), max); |
| /// |
| /// let ip0: Ipv6Addr = "fd00::".parse().unwrap(); |
| /// let ip1: Ipv6Addr = "fd00::5".parse().unwrap(); |
| /// let ip2: Ipv6Addr = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe".parse().unwrap(); |
| /// let max: Ipv6Addr = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff".parse().unwrap(); |
| /// |
| /// assert_eq!(ip0.saturating_add(5), ip1); |
| /// assert_eq!(ip2.saturating_add(1), max); |
| /// assert_eq!(ip2.saturating_add(5), max); |
| /// ``` |
| </span><span class="kw">pub trait </span>IpAdd<RHS = <span class="self">Self</span>> { |
| <span class="kw">type </span>Output; |
| <span class="kw">fn </span>saturating_add(<span class="self">self</span>, rhs: RHS) -> <span class="self">Self</span>::Output; |
| } |
| |
| <span class="doccomment">/// Provides a `saturating_sub()` method for `Ipv4Addr` and `Ipv6Addr`. |
| /// |
| /// Subtracting an integer from an IP address returns the modified IP |
| /// address. A `u32` may be subtracted from an IPv4 address and a `u128` |
| /// may be subtracted from an IPv6 address. |
| /// |
| /// Subtracting an IP address from another IP address of the same type |
| /// returns an integer of the appropriate width. A `u32` for IPv4 and a |
| /// `u128` for IPv6. Subtracting IP addresses is useful for getting |
| /// the range between two IP addresses. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::{Ipv4Addr, Ipv6Addr}; |
| /// use ipnet::IpSub; |
| /// |
| /// let min: Ipv4Addr = "0.0.0.0".parse().unwrap(); |
| /// let ip1: Ipv4Addr = "192.168.1.5".parse().unwrap(); |
| /// let ip2: Ipv4Addr = "192.168.1.100".parse().unwrap(); |
| /// |
| /// assert_eq!(min.saturating_sub(ip1), 0); |
| /// assert_eq!(ip2.saturating_sub(ip1), 95); |
| /// assert_eq!(min.saturating_sub(5), min); |
| /// assert_eq!(ip2.saturating_sub(95), ip1); |
| /// |
| /// let min: Ipv6Addr = "::".parse().unwrap(); |
| /// let ip1: Ipv6Addr = "fd00::5".parse().unwrap(); |
| /// let ip2: Ipv6Addr = "fd00::64".parse().unwrap(); |
| /// |
| /// assert_eq!(min.saturating_sub(ip1), 0); |
| /// assert_eq!(ip2.saturating_sub(ip1), 95); |
| /// assert_eq!(min.saturating_sub(5u128), min); |
| /// assert_eq!(ip2.saturating_sub(95u128), ip1); |
| /// ``` |
| </span><span class="kw">pub trait </span>IpSub<RHS = <span class="self">Self</span>> { |
| <span class="kw">type </span>Output; |
| <span class="kw">fn </span>saturating_sub(<span class="self">self</span>, rhs: RHS) -> <span class="self">Self</span>::Output; |
| } |
| |
| <span class="doccomment">/// Provides a `bitand()` method for `Ipv4Addr` and `Ipv6Addr`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::{Ipv4Addr, Ipv6Addr}; |
| /// use ipnet::IpBitAnd; |
| /// |
| /// let ip: Ipv4Addr = "192.168.1.1".parse().unwrap(); |
| /// let mask: Ipv4Addr = "255.255.0.0".parse().unwrap(); |
| /// let res: Ipv4Addr = "192.168.0.0".parse().unwrap(); |
| /// |
| /// assert_eq!(ip.bitand(mask), res); |
| /// assert_eq!(ip.bitand(0xffff0000), res); |
| /// |
| /// let ip: Ipv6Addr = "fd00:1234::1".parse().unwrap(); |
| /// let mask: Ipv6Addr = "ffff::".parse().unwrap(); |
| /// let res: Ipv6Addr = "fd00::".parse().unwrap(); |
| /// |
| /// assert_eq!(ip.bitand(mask), res); |
| /// assert_eq!(ip.bitand(0xffff_0000_0000_0000_0000_0000_0000_0000u128), res); |
| /// ``` |
| </span><span class="kw">pub trait </span>IpBitAnd<RHS = <span class="self">Self</span>> { |
| <span class="kw">type </span>Output; |
| <span class="kw">fn </span>bitand(<span class="self">self</span>, rhs: RHS) -> <span class="self">Self</span>::Output; |
| } |
| |
| <span class="doccomment">/// Provides a `bitor()` method for `Ipv4Addr` and `Ipv6Addr`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::{Ipv4Addr, Ipv6Addr}; |
| /// use ipnet::IpBitOr; |
| /// |
| /// let ip: Ipv4Addr = "10.1.1.1".parse().unwrap(); |
| /// let mask: Ipv4Addr = "0.0.0.255".parse().unwrap(); |
| /// let res: Ipv4Addr = "10.1.1.255".parse().unwrap(); |
| /// |
| /// assert_eq!(ip.bitor(mask), res); |
| /// assert_eq!(ip.bitor(0x000000ff), res); |
| /// |
| /// let ip: Ipv6Addr = "fd00::1".parse().unwrap(); |
| /// let mask: Ipv6Addr = "::ffff:ffff".parse().unwrap(); |
| /// let res: Ipv6Addr = "fd00::ffff:ffff".parse().unwrap(); |
| /// |
| /// assert_eq!(ip.bitor(mask), res); |
| /// assert_eq!(ip.bitor(u128::from(0xffffffffu32)), res); |
| /// ``` |
| </span><span class="kw">pub trait </span>IpBitOr<RHS = <span class="self">Self</span>> { |
| <span class="kw">type </span>Output; |
| <span class="kw">fn </span>bitor(<span class="self">self</span>, rhs: RHS) -> <span class="self">Self</span>::Output; |
| } |
| |
| <span class="macro">macro_rules! </span>ip_add_impl { |
| (<span class="macro-nonterminal">$lhs</span>:ty, <span class="macro-nonterminal">$rhs</span>:ty, <span class="macro-nonterminal">$output</span>:ty, <span class="macro-nonterminal">$inner</span>:ty) => ( |
| <span class="kw">impl </span>IpAdd<<span class="macro-nonterminal">$rhs</span>> <span class="kw">for </span><span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">type </span>Output = <span class="macro-nonterminal">$output</span>; |
| |
| <span class="kw">fn </span>saturating_add(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$rhs</span>) -> <span class="macro-nonterminal">$output </span>{ |
| <span class="kw">let </span>lhs: <span class="macro-nonterminal">$inner </span>= <span class="self">self</span>.into(); |
| <span class="kw">let </span>rhs: <span class="macro-nonterminal">$inner </span>= rhs.into(); |
| (lhs.saturating_add(rhs.into())).into() |
| } |
| } |
| ) |
| } |
| |
| <span class="macro">macro_rules! </span>ip_sub_impl { |
| (<span class="macro-nonterminal">$lhs</span>:ty, <span class="macro-nonterminal">$rhs</span>:ty, <span class="macro-nonterminal">$output</span>:ty, <span class="macro-nonterminal">$inner</span>:ty) => ( |
| <span class="kw">impl </span>IpSub<<span class="macro-nonterminal">$rhs</span>> <span class="kw">for </span><span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">type </span>Output = <span class="macro-nonterminal">$output</span>; |
| |
| <span class="kw">fn </span>saturating_sub(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$rhs</span>) -> <span class="macro-nonterminal">$output </span>{ |
| <span class="kw">let </span>lhs: <span class="macro-nonterminal">$inner </span>= <span class="self">self</span>.into(); |
| <span class="kw">let </span>rhs: <span class="macro-nonterminal">$inner </span>= rhs.into(); |
| (lhs.saturating_sub(rhs.into())).into() |
| } |
| } |
| ) |
| } |
| |
| <span class="macro">ip_add_impl!</span>(Ipv4Addr, u32, Ipv4Addr, u32); |
| <span class="macro">ip_add_impl!</span>(Ipv6Addr, u128, Ipv6Addr, u128); |
| |
| <span class="macro">ip_sub_impl!</span>(Ipv4Addr, Ipv4Addr, u32, u32); |
| <span class="macro">ip_sub_impl!</span>(Ipv4Addr, u32, Ipv4Addr, u32); |
| <span class="macro">ip_sub_impl!</span>(Ipv6Addr, Ipv6Addr, u128, u128); |
| <span class="macro">ip_sub_impl!</span>(Ipv6Addr, u128, Ipv6Addr, u128); |
| |
| <span class="macro">macro_rules! </span>ip_bitops_impl { |
| ($((<span class="macro-nonterminal">$lhs</span>:ty, <span class="macro-nonterminal">$rhs</span>:ty, <span class="macro-nonterminal">$t</span>:ty),)<span class="kw-2">*</span>) => { |
| $( |
| <span class="kw">impl </span>IpBitAnd<<span class="macro-nonterminal">$rhs</span>> <span class="kw">for </span><span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">type </span>Output = <span class="macro-nonterminal">$lhs</span>; |
| |
| <span class="kw">fn </span>bitand(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$rhs</span>) -> <span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">let </span>lhs: <span class="macro-nonterminal">$t </span>= <span class="self">self</span>.into(); |
| <span class="kw">let </span>rhs: <span class="macro-nonterminal">$t </span>= rhs.into(); |
| (lhs & rhs).into() |
| } |
| } |
| |
| <span class="kw">impl </span>IpBitOr<<span class="macro-nonterminal">$rhs</span>> <span class="kw">for </span><span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">type </span>Output = <span class="macro-nonterminal">$lhs</span>; |
| |
| <span class="kw">fn </span>bitor(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$rhs</span>) -> <span class="macro-nonterminal">$lhs </span>{ |
| <span class="kw">let </span>lhs: <span class="macro-nonterminal">$t </span>= <span class="self">self</span>.into(); |
| <span class="kw">let </span>rhs: <span class="macro-nonterminal">$t </span>= rhs.into(); |
| (lhs | rhs).into() |
| } |
| } |
| )* |
| } |
| } |
| |
| <span class="macro">ip_bitops_impl! </span>{ |
| (Ipv4Addr, Ipv4Addr, u32), |
| (Ipv4Addr, u32, u32), |
| (Ipv6Addr, Ipv6Addr, u128), |
| (Ipv6Addr, u128, u128), |
| } |
| |
| <span class="comment">// A barebones copy of the current unstable Step trait used by the |
| // IpAddrRange, Ipv4AddrRange, and Ipv6AddrRange types below, and the |
| // Subnets types in ipnet. |
| </span><span class="kw">pub trait </span>IpStep { |
| <span class="kw">fn </span>replace_one(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self</span>; |
| <span class="kw">fn </span>replace_zero(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self</span>; |
| <span class="kw">fn </span>add_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span>; |
| <span class="kw">fn </span>sub_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span>; |
| } |
| |
| <span class="kw">impl </span>IpStep <span class="kw">for </span>Ipv4Addr { |
| <span class="kw">fn </span>replace_one(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| mem::replace(<span class="self">self</span>, Ipv4Addr::new(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>)) |
| } |
| <span class="kw">fn </span>replace_zero(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| mem::replace(<span class="self">self</span>, Ipv4Addr::new(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>)) |
| } |
| <span class="kw">fn </span>add_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.saturating_add(<span class="number">1</span>) |
| } |
| <span class="kw">fn </span>sub_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.saturating_sub(<span class="number">1</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>IpStep <span class="kw">for </span>Ipv6Addr { |
| <span class="kw">fn </span>replace_one(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| mem::replace(<span class="self">self</span>, Ipv6Addr::new(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>)) |
| } |
| <span class="kw">fn </span>replace_zero(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| mem::replace(<span class="self">self</span>, Ipv6Addr::new(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>)) |
| } |
| <span class="kw">fn </span>add_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.saturating_add(<span class="number">1</span>) |
| } |
| <span class="kw">fn </span>sub_one(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.saturating_sub(<span class="number">1</span>) |
| } |
| } |
| |
| <span class="doccomment">/// An `Iterator` over a range of IP addresses, either IPv4 or IPv6. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::IpAddr; |
| /// use ipnet::{IpAddrRange, Ipv4AddrRange, Ipv6AddrRange}; |
| /// |
| /// let hosts = IpAddrRange::from(Ipv4AddrRange::new( |
| /// "10.0.0.0".parse().unwrap(), |
| /// "10.0.0.3".parse().unwrap(), |
| /// )); |
| /// |
| /// assert_eq!(hosts.collect::<Vec<IpAddr>>(), vec![ |
| /// "10.0.0.0".parse::<IpAddr>().unwrap(), |
| /// "10.0.0.1".parse().unwrap(), |
| /// "10.0.0.2".parse().unwrap(), |
| /// "10.0.0.3".parse().unwrap(), |
| /// ]); |
| /// |
| /// let hosts = IpAddrRange::from(Ipv6AddrRange::new( |
| /// "fd00::".parse().unwrap(), |
| /// "fd00::3".parse().unwrap(), |
| /// )); |
| /// |
| /// assert_eq!(hosts.collect::<Vec<IpAddr>>(), vec![ |
| /// "fd00::0".parse::<IpAddr>().unwrap(), |
| /// "fd00::1".parse().unwrap(), |
| /// "fd00::2".parse().unwrap(), |
| /// "fd00::3".parse().unwrap(), |
| /// ]); |
| /// ``` |
| </span><span class="attribute">#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)] |
| </span><span class="kw">pub enum </span>IpAddrRange { |
| V4(Ipv4AddrRange), |
| V6(Ipv6AddrRange), |
| } |
| |
| <span class="doccomment">/// An `Iterator` over a range of IPv4 addresses. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::Ipv4Addr; |
| /// use ipnet::Ipv4AddrRange; |
| /// |
| /// let hosts = Ipv4AddrRange::new( |
| /// "10.0.0.0".parse().unwrap(), |
| /// "10.0.0.3".parse().unwrap(), |
| /// ); |
| /// |
| /// assert_eq!(hosts.collect::<Vec<Ipv4Addr>>(), vec![ |
| /// "10.0.0.0".parse::<Ipv4Addr>().unwrap(), |
| /// "10.0.0.1".parse().unwrap(), |
| /// "10.0.0.2".parse().unwrap(), |
| /// "10.0.0.3".parse().unwrap(), |
| /// ]); |
| /// ``` |
| </span><span class="attribute">#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)] |
| </span><span class="kw">pub struct </span>Ipv4AddrRange { |
| start: Ipv4Addr, |
| end: Ipv4Addr, |
| } |
| |
| <span class="doccomment">/// An `Iterator` over a range of IPv6 addresses. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use std::net::Ipv6Addr; |
| /// use ipnet::Ipv6AddrRange; |
| /// |
| /// let hosts = Ipv6AddrRange::new( |
| /// "fd00::".parse().unwrap(), |
| /// "fd00::3".parse().unwrap(), |
| /// ); |
| /// |
| /// assert_eq!(hosts.collect::<Vec<Ipv6Addr>>(), vec![ |
| /// "fd00::".parse::<Ipv6Addr>().unwrap(), |
| /// "fd00::1".parse().unwrap(), |
| /// "fd00::2".parse().unwrap(), |
| /// "fd00::3".parse().unwrap(), |
| /// ]); |
| /// ``` |
| </span><span class="attribute">#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)] |
| </span><span class="kw">pub struct </span>Ipv6AddrRange { |
| start: Ipv6Addr, |
| end: Ipv6Addr, |
| } |
| |
| <span class="kw">impl </span>From<Ipv4AddrRange> <span class="kw">for </span>IpAddrRange { |
| <span class="kw">fn </span>from(i: Ipv4AddrRange) -> IpAddrRange { |
| IpAddrRange::V4(i) |
| } |
| } |
| |
| <span class="kw">impl </span>From<Ipv6AddrRange> <span class="kw">for </span>IpAddrRange { |
| <span class="kw">fn </span>from(i: Ipv6AddrRange) -> IpAddrRange { |
| IpAddrRange::V6(i) |
| } |
| } |
| |
| <span class="kw">impl </span>Ipv4AddrRange { |
| <span class="kw">pub fn </span>new(start: Ipv4Addr, end: Ipv4Addr) -> <span class="self">Self </span>{ |
| Ipv4AddrRange { |
| start: start, |
| end: end, |
| } |
| } |
| <span class="doccomment">/// Counts the number of Ipv4Addr in this range. |
| /// This method will never overflow or panic. |
| </span><span class="kw">fn </span>count_u64(<span class="kw-2">&</span><span class="self">self</span>) -> u64 { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>count: u32 = <span class="self">self</span>.end.saturating_sub(<span class="self">self</span>.start); |
| <span class="kw">let </span>count = count <span class="kw">as </span>u64 + <span class="number">1</span>; <span class="comment">// Never overflows |
| </span>count |
| }, |
| <span class="prelude-val">Some</span>(Equal) => <span class="number">1</span>, |
| <span class="kw">_ </span>=> <span class="number">0</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Ipv6AddrRange { |
| <span class="kw">pub fn </span>new(start: Ipv6Addr, end: Ipv6Addr) -> <span class="self">Self </span>{ |
| Ipv6AddrRange { |
| start: start, |
| end: end, |
| } |
| } |
| <span class="doccomment">/// Counts the number of Ipv6Addr in this range. |
| /// This method may overflow or panic if start |
| /// is 0 and end is u128::MAX |
| </span><span class="kw">fn </span>count_u128(<span class="kw-2">&</span><span class="self">self</span>) -> u128 { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>count = <span class="self">self</span>.end.saturating_sub(<span class="self">self</span>.start); |
| <span class="comment">// May overflow or panic |
| </span>count + <span class="number">1 |
| </span>}, |
| <span class="prelude-val">Some</span>(Equal) => <span class="number">1</span>, |
| <span class="kw">_ </span>=> <span class="number">0</span>, |
| } |
| } |
| <span class="doccomment">/// True only if count_u128 does not overflow |
| </span><span class="kw">fn </span>can_count_u128(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.start != Ipv6Addr::new(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>) |
| || <span class="self">self</span>.end != Ipv6Addr::new(<span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>, <span class="number">0xffff</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Iterator <span class="kw">for </span>IpAddrRange { |
| <span class="kw">type </span>Item = IpAddr; |
| |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| IpAddrRange::V4(<span class="kw-2">ref mut </span>a) => a.next().map(IpAddr::V4), |
| IpAddrRange::V6(<span class="kw-2">ref mut </span>a) => a.next().map(IpAddr::V6), |
| } |
| } |
| |
| <span class="kw">fn </span>count(<span class="self">self</span>) -> usize { |
| <span class="kw">match </span><span class="self">self </span>{ |
| IpAddrRange::V4(a) => a.count(), |
| IpAddrRange::V6(a) => a.count(), |
| } |
| } |
| |
| <span class="kw">fn </span>last(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self </span>{ |
| IpAddrRange::V4(a) => a.last().map(IpAddr::V4), |
| IpAddrRange::V6(a) => a.last().map(IpAddr::V6), |
| } |
| } |
| |
| <span class="kw">fn </span>max(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self </span>{ |
| IpAddrRange::V4(a) => Iterator::max(a).map(IpAddr::V4), |
| IpAddrRange::V6(a) => Iterator::max(a).map(IpAddr::V6), |
| } |
| } |
| |
| <span class="kw">fn </span>min(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self </span>{ |
| IpAddrRange::V4(a) => Iterator::min(a).map(IpAddr::V4), |
| IpAddrRange::V6(a) => Iterator::min(a).map(IpAddr::V6), |
| } |
| } |
| |
| <span class="kw">fn </span>nth(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| IpAddrRange::V4(<span class="kw-2">ref mut </span>a) => a.nth(n).map(IpAddr::V4), |
| IpAddrRange::V6(<span class="kw-2">ref mut </span>a) => a.nth(n).map(IpAddr::V6), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> (usize, <span class="prelude-ty">Option</span><usize>) { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| IpAddrRange::V4(<span class="kw-2">ref </span>a) => a.size_hint(), |
| IpAddrRange::V6(<span class="kw-2">ref </span>a) => a.size_hint(), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Iterator <span class="kw">for </span>Ipv4AddrRange { |
| <span class="kw">type </span>Item = Ipv4Addr; |
| |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>next = <span class="self">self</span>.start.add_one(); |
| <span class="prelude-val">Some</span>(mem::replace(<span class="kw-2">&mut </span><span class="self">self</span>.start, next)) |
| }, |
| <span class="prelude-val">Some</span>(Equal) => { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| }, |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[allow(arithmetic_overflow)] |
| </span><span class="kw">fn </span>count(<span class="self">self</span>) -> usize { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="comment">// Adding one here might overflow u32. |
| // Instead, wait until after converted to usize |
| </span><span class="kw">let </span>count: u32 = <span class="self">self</span>.end.saturating_sub(<span class="self">self</span>.start); |
| |
| <span class="comment">// usize might only be 16 bits, |
| // so need to explicitly check for overflow. |
| // 'usize::MAX as u32' is okay here - if usize is 64 bits, |
| // value truncates to u32::MAX |
| </span><span class="kw">if </span>count <= std::usize::MAX <span class="kw">as </span>u32 { |
| count <span class="kw">as </span>usize + <span class="number">1 |
| </span><span class="comment">// count overflows usize |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// emulate standard overflow/panic behavior |
| </span>std::usize::MAX + <span class="number">2 </span>+ count <span class="kw">as </span>usize |
| } |
| }, |
| <span class="prelude-val">Some</span>(Equal) => <span class="number">1</span>, |
| <span class="kw">_ </span>=> <span class="number">0 |
| </span>} |
| } |
| |
| <span class="kw">fn </span>last(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) | <span class="prelude-val">Some</span>(Equal) => <span class="prelude-val">Some</span>(<span class="self">self</span>.end), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>max(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="self">self</span>.last() |
| } |
| |
| <span class="kw">fn </span>min(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) | <span class="prelude-val">Some</span>(Equal) => <span class="prelude-val">Some</span>(<span class="self">self</span>.start), |
| <span class="kw">_ </span>=> <span class="prelude-val">None |
| </span>} |
| } |
| |
| <span class="kw">fn </span>nth(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">let </span>n = n <span class="kw">as </span>u64; |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u64(); |
| <span class="kw">if </span>n >= count { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">None |
| </span>} <span class="kw">else if </span>n == count - <span class="number">1 </span>{ |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.end.replace_zero()) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>nth = <span class="self">self</span>.start.saturating_add(n <span class="kw">as </span>u32); |
| <span class="self">self</span>.start = nth.add_one(); |
| <span class="prelude-val">Some</span>(nth) |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> (usize, <span class="prelude-ty">Option</span><usize>) { |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u64(); |
| <span class="kw">if </span>count > std::usize::MAX <span class="kw">as </span>u64 { |
| (std::usize::MAX, <span class="prelude-val">None</span>) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>count = count <span class="kw">as </span>usize; |
| (count, <span class="prelude-val">Some</span>(count)) |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Iterator <span class="kw">for </span>Ipv6AddrRange { |
| <span class="kw">type </span>Item = Ipv6Addr; |
| |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>next = <span class="self">self</span>.start.add_one(); |
| <span class="prelude-val">Some</span>(mem::replace(<span class="kw-2">&mut </span><span class="self">self</span>.start, next)) |
| }, |
| <span class="prelude-val">Some</span>(Equal) => { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| }, |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[allow(arithmetic_overflow)] |
| </span><span class="kw">fn </span>count(<span class="self">self</span>) -> usize { |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u128(); |
| <span class="comment">// count fits in usize |
| </span><span class="kw">if </span>count <= std::usize::MAX <span class="kw">as </span>u128 { |
| count <span class="kw">as </span>usize |
| <span class="comment">// count does not fit in usize |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// emulate standard overflow/panic behavior |
| </span>std::usize::MAX + <span class="number">1 </span>+ count <span class="kw">as </span>usize |
| } |
| } |
| |
| <span class="kw">fn </span>last(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) | <span class="prelude-val">Some</span>(Equal) => <span class="prelude-val">Some</span>(<span class="self">self</span>.end), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>max(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="self">self</span>.last() |
| } |
| |
| <span class="kw">fn </span>min(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) | <span class="prelude-val">Some</span>(Equal) => <span class="prelude-val">Some</span>(<span class="self">self</span>.start), |
| <span class="kw">_ </span>=> <span class="prelude-val">None |
| </span>} |
| } |
| |
| <span class="kw">fn </span>nth(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">let </span>n = n <span class="kw">as </span>u128; |
| <span class="kw">if </span><span class="self">self</span>.can_count_u128() { |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u128(); |
| <span class="kw">if </span>n >= count { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">None |
| </span>} <span class="kw">else if </span>n == count - <span class="number">1 </span>{ |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.end.replace_zero()) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>nth = <span class="self">self</span>.start.saturating_add(n); |
| <span class="self">self</span>.start = nth.add_one(); |
| <span class="prelude-val">Some</span>(nth) |
| } |
| <span class="comment">// count overflows u128; n is 64-bits at most. |
| // therefore, n can never exceed count |
| </span>} <span class="kw">else </span>{ |
| <span class="kw">let </span>nth = <span class="self">self</span>.start.saturating_add(n); |
| <span class="self">self</span>.start = nth.add_one(); |
| <span class="prelude-val">Some</span>(nth) |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> (usize, <span class="prelude-ty">Option</span><usize>) { |
| <span class="kw">if </span><span class="self">self</span>.can_count_u128() { |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u128(); |
| <span class="kw">if </span>count > std::usize::MAX <span class="kw">as </span>u128 { |
| (std::usize::MAX, <span class="prelude-val">None</span>) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>count = count <span class="kw">as </span>usize; |
| (count, <span class="prelude-val">Some</span>(count)) |
| } |
| } <span class="kw">else </span>{ |
| (std::usize::MAX, <span class="prelude-val">None</span>) |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>DoubleEndedIterator <span class="kw">for </span>IpAddrRange { |
| <span class="kw">fn </span>next_back(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| IpAddrRange::V4(<span class="kw-2">ref mut </span>a) => a.next_back().map(IpAddr::V4), |
| IpAddrRange::V6(<span class="kw-2">ref mut </span>a) => a.next_back().map(IpAddr::V6), |
| } |
| } |
| <span class="kw">fn </span>nth_back(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| IpAddrRange::V4(<span class="kw-2">ref mut </span>a) => a.nth_back(n).map(IpAddr::V4), |
| IpAddrRange::V6(<span class="kw-2">ref mut </span>a) => a.nth_back(n).map(IpAddr::V6), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>DoubleEndedIterator <span class="kw">for </span>Ipv4AddrRange { |
| <span class="kw">fn </span>next_back(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>next_back = <span class="self">self</span>.end.sub_one(); |
| <span class="prelude-val">Some</span>(mem::replace(<span class="kw-2">&mut </span><span class="self">self</span>.end, next_back)) |
| }, |
| <span class="prelude-val">Some</span>(Equal) => { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| }, |
| <span class="kw">_ </span>=> <span class="prelude-val">None |
| </span>} |
| } |
| <span class="kw">fn </span>nth_back(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">let </span>n = n <span class="kw">as </span>u64; |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u64(); |
| <span class="kw">if </span>n >= count { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">None |
| </span>} <span class="kw">else if </span>n == count - <span class="number">1 </span>{ |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>nth_back = <span class="self">self</span>.end.saturating_sub(n <span class="kw">as </span>u32); |
| <span class="self">self</span>.end = nth_back.sub_one(); |
| <span class="prelude-val">Some</span>(nth_back) |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>DoubleEndedIterator <span class="kw">for </span>Ipv6AddrRange { |
| <span class="kw">fn </span>next_back(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">match </span><span class="self">self</span>.start.partial_cmp(<span class="kw-2">&</span><span class="self">self</span>.end) { |
| <span class="prelude-val">Some</span>(Less) => { |
| <span class="kw">let </span>next_back = <span class="self">self</span>.end.sub_one(); |
| <span class="prelude-val">Some</span>(mem::replace(<span class="kw-2">&mut </span><span class="self">self</span>.end, next_back)) |
| }, |
| <span class="prelude-val">Some</span>(Equal) => { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| }, |
| <span class="kw">_ </span>=> <span class="prelude-val">None |
| </span>} |
| } |
| <span class="kw">fn </span>nth_back(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> { |
| <span class="kw">let </span>n = n <span class="kw">as </span>u128; |
| <span class="kw">if </span><span class="self">self</span>.can_count_u128() { |
| <span class="kw">let </span>count = <span class="self">self</span>.count_u128(); |
| <span class="kw">if </span>n >= count { |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="self">self</span>.start.replace_one(); |
| <span class="prelude-val">None |
| </span>} |
| <span class="kw">else if </span>n == count - <span class="number">1 </span>{ |
| <span class="self">self</span>.end.replace_zero(); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.start.replace_one()) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>nth_back = <span class="self">self</span>.end.saturating_sub(n); |
| <span class="self">self</span>.end = nth_back.sub_one(); |
| <span class="prelude-val">Some</span>(nth_back) |
| } |
| <span class="comment">// count overflows u128; n is 64-bits at most. |
| // therefore, n can never exceed count |
| </span>} <span class="kw">else </span>{ |
| <span class="kw">let </span>nth_back = <span class="self">self</span>.end.saturating_sub(n); |
| <span class="self">self</span>.end = nth_back.sub_one(); |
| <span class="prelude-val">Some</span>(nth_back) |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>FusedIterator <span class="kw">for </span>IpAddrRange {} |
| <span class="kw">impl </span>FusedIterator <span class="kw">for </span>Ipv4AddrRange {} |
| <span class="kw">impl </span>FusedIterator <span class="kw">for </span>Ipv6AddrRange {} |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; |
| <span class="kw">use </span>std::str::FromStr; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_ipaddrrange() { |
| <span class="comment">// Next, Next-Back |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<Ipv4Addr>>(), <span class="macro">vec!</span>[ |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.1"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.2"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>v = i.collect::<Vec<<span class="kw">_</span>>>(); |
| v.reverse(); |
| <span class="macro">assert_eq!</span>(v, i.rev().collect::<Vec<<span class="kw">_</span>>>()); |
| |
| <span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"255.255.255.254"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"255.255.255.255"</span>).unwrap() |
| ); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<Ipv4Addr>>(), <span class="macro">vec!</span>[ |
| Ipv4Addr::from_str(<span class="string">"255.255.255.254"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"255.255.255.255"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<Ipv6Addr>>(), <span class="macro">vec!</span>[ |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::1"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::2"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>v = i.collect::<Vec<<span class="kw">_</span>>>(); |
| v.reverse(); |
| <span class="macro">assert_eq!</span>(v, i.rev().collect::<Vec<<span class="kw">_</span>>>()); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"</span>).unwrap(), |
| ); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<Ipv6Addr>>(), <span class="macro">vec!</span>[ |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span>i = IpAddrRange::from(Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap(), |
| )); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<IpAddr>>(), <span class="macro">vec!</span>[ |
| IpAddr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"10.0.0.1"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"10.0.0.2"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"10.0.0.3"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>v = i.collect::<Vec<<span class="kw">_</span>>>(); |
| v.reverse(); |
| <span class="macro">assert_eq!</span>(v, i.rev().collect::<Vec<<span class="kw">_</span>>>()); |
| |
| <span class="kw">let </span>i = IpAddrRange::from(Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"255.255.255.254"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"255.255.255.255"</span>).unwrap() |
| )); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<IpAddr>>(), <span class="macro">vec!</span>[ |
| IpAddr::from_str(<span class="string">"255.255.255.254"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"255.255.255.255"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span>i = IpAddrRange::from(Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| )); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<IpAddr>>(), <span class="macro">vec!</span>[ |
| IpAddr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"fd00::1"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"fd00::2"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ]); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>v = i.collect::<Vec<<span class="kw">_</span>>>(); |
| v.reverse(); |
| <span class="macro">assert_eq!</span>(v, i.rev().collect::<Vec<<span class="kw">_</span>>>()); |
| |
| <span class="kw">let </span>i = IpAddrRange::from(Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"</span>).unwrap(), |
| )); |
| |
| <span class="macro">assert_eq!</span>(i.collect::<Vec<IpAddr>>(), <span class="macro">vec!</span>[ |
| IpAddr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"</span>).unwrap(), |
| IpAddr::from_str(<span class="string">"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"</span>).unwrap(), |
| ]); |
| |
| <span class="comment">// #11 (infinite iterator when start and stop are 0) |
| </span><span class="kw">let </span>zero4 = Ipv4Addr::from_str(<span class="string">"0.0.0.0"</span>).unwrap(); |
| <span class="kw">let </span>zero6 = Ipv6Addr::from_str(<span class="string">"::"</span>).unwrap(); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>i = Ipv4AddrRange::new(zero4, zero4); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(zero4), i.next()); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, i.next()); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>i = Ipv6AddrRange::new(zero6, zero6); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(zero6), i.next()); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, i.next()); |
| |
| <span class="comment">// Count |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| <span class="macro">assert_eq!</span>(i.count(), <span class="number">4</span>); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(i.count(), <span class="number">4</span>); |
| |
| <span class="comment">// Size Hint |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| <span class="macro">assert_eq!</span>(i.size_hint(), (<span class="number">4</span>, <span class="prelude-val">Some</span>(<span class="number">4</span>))); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(i.size_hint(), (<span class="number">4</span>, <span class="prelude-val">Some</span>(<span class="number">4</span>))); |
| |
| <span class="comment">// Size Hint: a range where size clearly overflows usize |
| </span><span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"8000::"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(i.size_hint(), (std::usize::MAX, <span class="prelude-val">None</span>)); |
| |
| <span class="comment">// Min, Max, Last |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| <span class="macro">assert_eq!</span>(Iterator::min(i), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(Iterator::max(i), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.last(), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap())); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(Iterator::min(i), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(Iterator::max(i), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.last(), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap())); |
| |
| <span class="comment">// Nth |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">0</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">3</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">4</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i2 = i.clone(); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.1"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">0</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i3 = i.clone(); |
| <span class="macro">assert_eq!</span>(i3.nth(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i3.next(), <span class="prelude-val">None</span>); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">0</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">3</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">4</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i.clone().nth(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i2 = i.clone(); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::1"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth(<span class="number">0</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i3 = i.clone(); |
| <span class="macro">assert_eq!</span>(i3.nth(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i3.next(), <span class="prelude-val">None</span>); |
| |
| <span class="comment">// Nth Back |
| </span><span class="kw">let </span>i = Ipv4AddrRange::new( |
| Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap(), |
| Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap() |
| ); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">0</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">3</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">4</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i2 = i.clone(); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.2"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv4Addr::from_str(<span class="string">"10.0.0.0"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">0</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i3 = i.clone(); |
| <span class="macro">assert_eq!</span>(i3.nth_back(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i3.next(), <span class="prelude-val">None</span>); |
| |
| <span class="kw">let </span>i = Ipv6AddrRange::new( |
| Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap(), |
| Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap(), |
| ); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">0</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::3"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">3</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">4</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i.clone().nth_back(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i2 = i.clone(); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::2"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">1</span>), <span class="prelude-val">Some</span>(Ipv6Addr::from_str(<span class="string">"fd00::"</span>).unwrap())); |
| <span class="macro">assert_eq!</span>(i2.nth_back(<span class="number">0</span>), <span class="prelude-val">None</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>i3 = i.clone(); |
| <span class="macro">assert_eq!</span>(i3.nth_back(<span class="number">99</span>), <span class="prelude-val">None</span>); |
| <span class="macro">assert_eq!</span>(i3.next(), <span class="prelude-val">None</span>); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="ipnet" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
