PrefixLengthToSubnetMask()

static IPAddress System.Net.NetworkInformation.UnicastIPAddressInformation.PrefixLengthToSubnetMask ( byte prefixLength, AddressFamily family )

inlinestaticpackageinherited

Definition at line 29 of file UnicastIPAddressInformation.cs.

    {
        Span<byte> span = ((family != AddressFamily.InterNetwork) ? stackalloc byte[16] : stackalloc byte[4]);
        Span<byte> span2 = span;
        span2.Clear();
        for (int i = 0; i < prefixLength; i++)
        {
            span2[i / 8] |= (byte)(128 >> i % 8);
        }
        return new IPAddress(span2);
    }

References System.Span< T >.Clear().

Referenced by System.Net.NetworkInformation.SystemUnicastIPAddressInformation.SystemUnicastIPAddressInformation().