From bcc6eaff82162d21e6b7e3b3de11e44cd5bc7680 Mon Sep 17 00:00:00 2001
From: Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
Date: Mon, 14 Apr 2014 16:04:49 +0200
Subject: [PATCH] added const access for operator[] (issue #7)

---
 include/array.h | 12 +++++++++++-
 include/table.h | 10 ++++++++++
 src/array.cpp   |  2 +-
 3 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/include/array.h b/include/array.h
index 4eb5c30..ddc07b7 100644
--- a/include/array.h
+++ b/include/array.h
@@ -110,7 +110,7 @@ public:
      *  @param  index   field index
      *  @return Field
      */
-    const Field &get(uint8_t index);
+    const Field &get(uint8_t index) const;
 
     /**
      *  Get number of elements on this array
@@ -141,6 +141,16 @@ public:
     {
         return ArrayFieldProxy(this, index);
     }
+    
+    /**
+     *  Get a const field
+     *  @param  index   field index
+     *  @return Field
+     */
+    const Field &operator[](uint8_t index) const
+    {
+        return get(index);
+    }
 
     /**
      *  Write encoded payload to the given buffer.
diff --git a/include/table.h b/include/table.h
index f7682e5..997c210 100644
--- a/include/table.h
+++ b/include/table.h
@@ -122,6 +122,16 @@ public:
         return AssociativeFieldProxy(this, name);
     }
 
+    /**
+     *  Get a const field
+     *
+     *  @param  name    field name
+     */
+    const Field &operator[](const std::string& name) const
+    {
+        return get(name);
+    }
+
     /**
      *  Write encoded payload to the given buffer. 
      *  @param  buffer
diff --git a/src/array.cpp b/src/array.cpp
index 175c168..d04c865 100644
--- a/src/array.cpp
+++ b/src/array.cpp
@@ -58,7 +58,7 @@ Array::Array(const Array &array)
  *  @param  index   field index
  *  @return Field
  */
-const Field &Array::get(uint8_t index)
+const Field &Array::get(uint8_t index) const
 {
     // used if index does not exist
     static ShortString empty;