chriskohlhoff/asio — pull request #29 by olk (2014-09-22 18:23:59+00:00)
Title: IPv4 addresses in CIDR (Classless Inter Domain Routing) notation 

class cidr_address_v4 abstracts IPv4 address in CIDR notation providing infos like:
cidr : 192.168.1.21/28
network (subnet-id) : 192.168.1.16
netmask : 255.255.255.240
broadcast: 192.168.1.31
address range: 192.168.1.17 - 192.168.1.30