Support dynamic field width in folly::format()

[folly.git] / folly / IPAddressV4.cpp

diff --git a/folly/IPAddressV4.cpp b/folly/IPAddressV4.cpp
index a5db28fc50933d52375985b2ba5df1b0a69069de..a33386d5aafd8625dc485a6f767a3ba799adf8e1 100644 (file)
--- a/folly/IPAddressV4.cpp
+++ b/folly/IPAddressV4.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Facebook, Inc.
+ * Copyright 2015 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,6 @@ using std::string;
 
 namespace folly {
 
-static IPAddressV4 loopback_addr("127.0.0.0");
 
 // free functions
 size_t hash_value(const IPAddressV4& addr) {
@@ -145,10 +144,18 @@ bool IPAddressV4::inSubnetWithMask(const IPAddressV4& subnet,
   return (mask == subMask);
 }
 
+// public
 bool IPAddressV4::isLoopback() const {
+  static IPAddressV4 loopback_addr("127.0.0.0");
   return inSubnetWithMask(loopback_addr, fetchMask(8));
 }
 
+// public
+bool IPAddressV4::isLinkLocal() const {
+  static IPAddressV4 linklocal_addr("169.254.0.0");
+  return inSubnetWithMask(linklocal_addr, fetchMask(16));
+}
+
 // public
 bool IPAddressV4::isNonroutable() const {
   auto ip = toLongHBO();