// public
bool IPAddressV4::inSubnet(StringPiece cidrNetwork) const {
auto subnetInfo = IPAddress::createNetwork(cidrNetwork);
auto addr = subnetInfo.first;
if (!addr.isV4()) {
throw IPAddressFormatException("Address '", addr.toJson(), "' ",
"is not a V4 address");
}
return inSubnetWithMask(addr.asV4(), fetchMask(subnetInfo.second));
}
// public
IPAddressV4 IPAddressV4::mask(size_t numBits) const {
static const auto bits = bitCount();
if (numBits > bits) {
throw IPAddressFormatException("numBits(", numBits,
") > bitsCount(", bits, ")");
}
ByteArray4 ba = detail::Bytes::mask(fetchMask(numBits), addr_.bytes_);
return IPAddressV4(ba);
}
// public
bool IPAddressV4::isLinkLocal() const {
static IPAddressV4 linklocal_addr("169.254.0.0");
return inSubnetWithMask(linklocal_addr, fetchMask(16));
}
// public
bool IPAddressV4::isLoopback() const {
static IPAddressV4 loopback_addr("127.0.0.0");
return inSubnetWithMask(loopback_addr, fetchMask(8));
}
