Add Minimalistic IPv4 class

ln.type/IPv4.cs

@@ -0,0 +1,43 @@
+using System;
+
+namespace ln.type
+{
+    public class IPv4
+    {
+        public static readonly IPv4 ANY = new IPv4();
+        
+        private UInt32 _ip;
+        private IPv4()
+        {
+        }
+        public IPv4(UInt32 ip)
+        {
+            _ip = ip;
+        }
+
+        public IPv4(byte[] ipbytes)
+        {
+            _ip = BitConverter.ToUInt32(ipbytes, 0);
+        }
+
+        public byte[] ToBytes => BitConverter.GetBytes(_ip);
+
+        public override bool Equals(Object obj) => (obj is IPv4 other) && _ip == other._ip;
+        public override int GetHashCode() => (int)_ip;
+
+        public override string ToString()
+        {
+            byte[] ipbytes = ToBytes;
+            return string.Format("{0}.{1}.{2}.{3}", ipbytes[3], ipbytes[2], ipbytes[1], ipbytes[0]);
+        }
+
+        public static IPv4 operator ++(IPv4 ip) => new IPv4(ip._ip + 1);
+        public static IPv4 operator --(IPv4 ip) => new IPv4(ip._ip - 1);
+
+        public static IPv4 operator +(IPv4 ip, int n) => new IPv4((uint)(ip._ip + n));
+        public static IPv4 operator -(IPv4 ip, int n) => new IPv4((uint)(ip._ip - n));
+
+        
+        
+    }
+}

ln.type/ln.type.csproj

@@ -8,6 +8,7 @@
         <Company>l--n.de</Company>
         <AssemblyVersion>0.0.1.0</AssemblyVersion>
         <FileVersion>0.0.1.0</FileVersion>
+        <PackageVersion>0.1.8-dev</PackageVersion>
     </PropertyGroup>
 
     <ItemGroup>