GiNaC/ginac symmetry.cpp symmetry.h

[Richard B. Kreckel]

On Tue, 19 Jun 2001, Christian Bauer wrote:
> On Tue, Jun 19, 2001 at 12:41:04PM +0200, Richard B. Kreckel wrote:
> > 1) failure to recognize `unsigned' as `unsigned int',
> 
> This is used in many places in GiNaC. Why has it not been a problem before?

It is a problem sometimes, then again it is not, then it is a warning...
I don't know.

> >     #include <list.h>
> >     struct foo { list<foo> children; };
> 
> This is supposed to work? Methinks that to make a list<foo>, the compiler
> would need to know at least sizeof(foo) which it can't because the struct
> definition is not closed yet.

Nonsense.  It's heavily used for building up all sorts of trees where it
really becomes convenient.  BTW, on those compilers plagued by the
abovementioned problem `struct foo { vector<foo> children; };' works like
a charm but according to your reasoning it would be a problem as well.

Regards
     -richy.
-- 
Richard Kreckel
<Richard.Kreckel at Uni-Mainz.DE>
<http://wwwthep.physik.uni-mainz.de/~kreckel/>