From 6621fd7bd92ff75a71cfd137c2c533d93876f301 Mon Sep 17 00:00:00 2001
From: Markus Pettersson <markus.pettersson@mullvad.net>
Date: Tue, 7 Jan 2025 21:43:09 +0100
Subject: [PATCH 1/3] Make `Ipv4Network::mask` const

---
 src/ipv4.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ipv4.rs b/src/ipv4.rs
index 58d834c..0ca3468 100644
--- a/src/ipv4.rs
+++ b/src/ipv4.rs
@@ -180,13 +180,13 @@ impl Ipv4Network {
     /// let net: Ipv4Network = "127.0.0.0/16".parse().unwrap();
     /// assert_eq!(net.mask(), Ipv4Addr::new(255, 255, 0, 0));
     /// ```
-    pub fn mask(&self) -> Ipv4Addr {
+    pub const fn mask(&self) -> Ipv4Addr {
         debug_assert!(self.prefix <= 32);
         if self.prefix == 0 {
             return Ipv4Addr::new(0, 0, 0, 0);
         }
         let mask = u32::MAX << (IPV4_BITS - self.prefix);
-        Ipv4Addr::from(mask)
+        Ipv4Addr::from_bits(mask)
     }
 
     /// Returns the address of the network denoted by this `Ipv4Network`.

From fe028fcd41789af12bb4999e8a060b5a10fcd94f Mon Sep 17 00:00:00 2001
From: Markus Pettersson <markus.pettersson@mullvad.net>
Date: Tue, 7 Jan 2025 21:44:50 +0100
Subject: [PATCH 2/3] Make `Ipv6Network::mask` const

---
 src/ipv6.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ipv6.rs b/src/ipv6.rs
index 7e6206c..1d87adc 100644
--- a/src/ipv6.rs
+++ b/src/ipv6.rs
@@ -200,14 +200,14 @@ impl Ipv6Network {
     /// let net: Ipv6Network = "ff01::0/32".parse().unwrap();
     /// assert_eq!(net.mask(), Ipv6Addr::new(0xffff, 0xffff, 0, 0, 0, 0, 0, 0));
     /// ```
-    pub fn mask(&self) -> Ipv6Addr {
+    pub const fn mask(&self) -> Ipv6Addr {
         debug_assert!(self.prefix <= IPV6_BITS);
 
         if self.prefix == 0 {
             return Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0);
         }
         let mask = u128::MAX << (IPV6_BITS - self.prefix);
-        Ipv6Addr::from(mask)
+        Ipv6Addr::from_bits(mask)
     }
 
     /// Returns the address of the network denoted by this `Ipv6Network`.

From b3cee64b35fd08d29e561f3382fe4652f95109a5 Mon Sep 17 00:00:00 2001
From: Markus Pettersson <markus.pettersson@mullvad.net>
Date: Tue, 7 Jan 2025 21:45:40 +0100
Subject: [PATCH 3/3] Make `IpNetwork::mask` const

---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 4931c0a..b64a478 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -226,7 +226,7 @@ impl IpNetwork {
     /// let v6_net: IpNetwork = "ff01::0/32".parse().unwrap();
     /// assert_eq!(v6_net.mask(), Ipv6Addr::new(0xffff, 0xffff, 0, 0, 0, 0, 0, 0));
     /// ```
-    pub fn mask(&self) -> IpAddr {
+    pub const fn mask(&self) -> IpAddr {
         match *self {
             IpNetwork::V4(ref a) => IpAddr::V4(a.mask()),
             IpNetwork::V6(ref a) => IpAddr::V6(a.mask()),