in code/include/swoc/IPRange.h [2399:2407]
inline IPRange::NetSource::NetSource(IPRange::NetSource::range_type const &range) {
if (range.is_ip4()) {
new (&_ip4) decltype(_ip4)(range.ip4());
_family = AF_INET;
} else if (range.is_ip6()) {
new (&_ip6) decltype(_ip6)(range.ip6());
_family = AF_INET6;
}
}