Re: containing one's own type

From:
Victor Bazarov <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Thu, 24 Jul 2008 15:41:44 -0400
Message-ID:
<g6alto$cpt$1@news.datemas.de>
Christopher wrote:

On Jul 24, 1:41 pm, Victor Bazarov <v.Abaza...@comAcast.net> wrote:

Christopher wrote:
I couldn't get my mind around those English sentences, perhaps you could
put it in C++ (don't worry about compilability of your code for now)?

V


Conceptual without error handling considered:

// Basic name value pair
class Attribute
{
public:
   Attribute();
   ~Attribute();

   const std::string & GetName() const;
   void SetName(const std::string & name);

   template<typename T>
   void SetValue(const T & value)
   {
      // use boost's lexical cast
   }

   template<typename T>
   void GetValue(const std::string & name, T & value_out)
   {
      // use boost's lexical cast
   }

private:

   std::string name;
   std::string value;
}

// Group of name value pairs
class AttributeGroup
{
public:
   AttributeGroup();
   ~AttributeGroup();

   const std::string & GetName() const;
   void SetName(const std::string & name);

   void InsertAttribute(const Attribute & attribute);
   void RemoveAttribute(const std::string & name);
   const Attribute & GetAttribute(const std::string & name) const;

   // Questionable Code
   void InsertAttributeGroup(const AttributeGroup & group);
   void RemoveAttributeGroup(const std::string & name);
   const AttributeGroup & GetAttributeGroup(const std::string & name)
const;

private:

   std::string name;

   typedef std::map<std::string, Attribute> AttributeMap;

   // Questionable Code
   typedef std::map<std::string, AttributeGroup> AttributeGroupMap;
}


Make your map not of string-value pairs but of string-pointer pairs and
you can easily contain such maps in the objects.

V
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