Re: Implications of tighter integration of libg++

[Joe Buck <jbuck@synopsys.com>]

> I'm not sure how the .h header files of libstdc++ should be handled;
> the standard allows to use them for backwards compatibility. Perhaps
> g++ will still need to special-case namespace std, and generate the
> appropriate aliases.

The goal of any such scheme is, as much as possible, to keep old programs
working.

One possibility is that iostream.h include <iostream>, followed by using
directives that import the names declared in <iostream>.  We should *not*
say "using namespace std;" as that imports all names.  Rather, just
things like

using std::istream;
using std::ostream;
using std::cin;
using std::cout;
using std::cerr;

etc.  I wouldn't advise 'using' for new facilities that didn't exist in
old libstdc++ versions (wide streams).

Then there's the problem that 'class ostream;' is now wrong.