call it data instead of c_ptr for approaching C++11 std::vector convention.

src/util/array.h

@@ -69,7 +69,7 @@ private:
     }
 
 public:
-    typedef T data;
+    typedef T data_t;
     typedef T * iterator;
     typedef const T * const_iterator;
 
@@ -181,8 +181,8 @@ public:
         return m_data + size(); 
     }
 
-    T const * c_ptr() const { return m_data; }
-    T * c_ptr() { return m_data; }
+    T const * data() const { return m_data; }
+    T * data() { return m_data; }
 
     void swap(array & other) {
         std::swap(m_data, other.m_data);