patch for symbol.

[Chris Dams]

Hello,

On Mon, 5 Jan 2004, Jens Vollinga wrote:

> Then you could simply (still enough stress?) write
> realsymbol x("x")
> or
> ex r = 3 * realsymbol("x");

Could also be done. I do not strongly prefer one possibility over the
other.

> It looks good to me, but maybe there are important concerns (speed,
> style, ...) ?!?
> -> rsync "main GiNaC developers"

If you have that a realsymbol inherits from a symbol and not give it its
own tinfo, is_exactly_a<realsymbol> will be true for complex symbols. IMO
this is counter-intuitive.

Bye,
Chris