[GiNaC-list] Strange behaviour in symbol declaration

[Marco André Ferreira Dias]

Hy guys,

I am doing a very long program (divided in diferent archives) that make
some simplifications in indexed expressions. But if a declare a symbol
variable completelly diferent in part of my program
    symbol x1("xi");
never used before, (yes, I checked if I declared this variable in main(),
in other context..) this make diference im my output.
In all functions declared in  headers I am passing the simplified things as
argument, so I think it not a symbol internal problem, like described in
tutorial.
My question: somebody got this behaviour before? if yes, what was resolved?

Thanks for all


Marco