Re: How to build a string on the fly, using std::ostringstream? [Reposting]

On Apr 28, 8:56 am, Vidar Hasfjord <vattilah-groups@[EMAIL PROTECTED]
>
wrote:
> If anyone has a C++03 solution to this problem, it would be nice to
> see.

This can be done by changing a member
   std::auto_ptr <std::ostringstream> s;
with
   std::stringstream s;
and defining the copy constructor with
   s << sb.s.rdbuf();
in its body. Not sure if this approach is any better.
The StringBuilderFactory would become:

const struct StringBuilderFactory
{
     class StringBuilder
     {
     public:
         StringBuilder() {}

         StringBuilder(const StringBuilder& sb)
         {s << sb.s.rdbuf();}

         template <typename T>
         inline StringBuilder& operator << (const T& v)
         {
             s << v;
             return *this;
         }

         inline operator std::string () const
         {return s.str();}

     private:
         std::stringstream s;
     };

     StringBuilderFactory() {}

     template <typename T>
     StringBuilder operator << (const T& obj) const
     {return StringBuilder () << obj;}

} S;

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