changes for C++ constructors on psim

[Chris Johns]

JP Bonn wrote:
> This is against the 4.6.1 release.  I plan on making a formal patch but
> it'll be a little bit.  These changes make the cdtest program, including
> iostreams, work on psim. There are also changes to cdtest that are
> independent of the psim changes that allow it to compile if iostreams
> are used.
> 

The cdtest changes to a standard iostream are welcome. I suppose it does 
not hurt to test C constructors but it is using a GCC extension. Maybe 
this should be conditional in case someone is using RTEMS on a non-gcc 
compiler.

Does a PR exist for psim not running cdtest ?. If not please create one 
so the changes can be traced.

-- 
  Chris Johns