github.com/gaissmai/extnetip (go): Package extnetip is an extension to net/netip with a few missing but important auxiliary functions for converting IP-prefixes to IP-ranges and vice versa.  The functions are effectively performed in uint128 space, no conversions from/to bytes are performed.  With these extensions to net/netip, third-party IP-range libraries become easily possible.
Keywords: cidr|ip|ipv4|ipv6|prefix