From 3b4dc10211acf55318ef61ba12d2a6e3b45aa2de Mon Sep 17 00:00:00 2001
From: Matias Fontanini <matias.fontanini@gmail.com>
Date: Sat, 1 Jun 2013 12:05:53 -0300
Subject: [PATCH] Added HWAddress<>::operator[].

---
 include/hw_address.h    | 9 +++++++++
 tests/src/hwaddress.cpp | 6 ++++++
 2 files changed, 15 insertions(+)

diff --git a/include/hw_address.h b/include/hw_address.h
index cd99054..12a8d11 100644
--- a/include/hw_address.h
+++ b/include/hw_address.h
@@ -244,6 +244,15 @@ public:
         oss << *this;
         return oss.str();
     }
+
+    /**
+     * \brief Retrieves the i-th storage_type in this address.
+     *
+     * \param i The element to retrieve.
+     */
+    storage_type operator[](size_t i) const {
+        return buffer[i];
+    }
     
     /**
      * \brief Writes this HWAddress in hex-notation to a std::ostream.
diff --git a/tests/src/hwaddress.cpp b/tests/src/hwaddress.cpp
index 5b7b112..3e6f529 100644
--- a/tests/src/hwaddress.cpp
+++ b/tests/src/hwaddress.cpp
@@ -36,6 +36,12 @@ TEST_F(HWAddressTest, DistinctOperator) {
     EXPECT_NE(addr1, addr2);
 }
 
+TEST_F(HWAddressTest, SubscriptOperator) {
+    HWAddress<6> addr("00:01:02:03:04:05");
+    for(size_t i = 0; i < addr.size(); ++i)
+        EXPECT_EQ(addr[i], i);
+}
+
 TEST_F(HWAddressTest, LessThanOperator) {
     HWAddress<6> addr1(byte_address), addr2(empty_addr);
     HWAddress<6> bcast = "ff:ff:ff:ff:ff:ff";