Re: atom_number/2: Type error

Carlo is indeed correct -- or at least his fix works.

I just find a touch of irony in finding it hard to determine the underlying type of an untyped language :-)

(none the wiser, but moving forward)
>  
> Hi Steve 
> are you sure it's not already a number ? 

Still not sure :-)

> Guard the conversion with a test before: 
>  
> ( atom(A) -> atom_number(A,N) ; N = A ), 

Thanks -- this works.