Re: [boost] [std_rdb] [rdb] 0.2.02

Subject: Re: [boost] [std_rdb] [rdb] 0.2.02
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-12-14 09:40:38

joel falcou wrote:
> Stewart, Robert wrote:
> > Allow me to quote me:
> >
> >>> I know the names are in a namespace, but given a using
> >>> directive, they won't be scope resolved.
>
> OK, I'm sorry to be dense atm, but I missing the point :(

Given this:

   namespace std
   {
      namespace rdb
      {
         struct float_;
      }
   }

You can have this:

   using namespace std::rdb;

   void
   f()
   {
      float_ f;
   }

That is, the names lose the "rdb" part and you're left with "float_," that is spelled almost the same as the built-in type, but that has different behavior.  At the least, float_ would include the length/null indicator, but it's behavior will be subtly different from that of float because we can't make UDTs behave completely like built-ins.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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