Re: [boost] Re: in/out parameters, codingstylesandmaintenance

From: Gregory Colvin (gregory.colvin_at_[hidden])
Date: 2003-05-03 22:43:31

On Saturday, May 3, 2003, at 21:12 America/Denver, Justin M. Lewis 
wrote:
> ...
> A little bit of an overly simple example.  How about something more 
> like
>
> void MyGetCWD(c_out<std::string> cwd)
> {
>     char *buf = new char[FIRSTSIZE];
>     unsigned int size = FIRSTSIZE;
>     while(getcwd(buf, sizeof(buf)) == NULL)
>     {
>         delete [] buf;
>         size += step;
>         buf = new char[size];
>     }
>
>     cwd = buf;
>     delete[] buf;
> }

Why not this?

   std::string GetCWD() {
     size_t size = FIRSTSIZE;
     boost::scoped_array<char> buf(new char[size]);
     while (!getcwd(buf,size))
       buf.reset(new char[size *= 2]);
     return std::string(buf);
   }