Re: bug in numbers.c integer-expt, expt?

[Marius Vollmer]

Rob Browning <address@hidden> writes:

> Is integer-expt supposed to behave like expt wrt (integer-expt 0 0)?
> 
> Right now I get
> 
>   guile> (integer-expt 0 0)
>   0
>   guile> (expt 0 0)
>   0
> 
> but r5rs says:
> 
>  - procedure: expt z1 z2
>      Returns Z1 raised to the power Z2.  For z_1 ~= 0
> 
>                           z_1^z_2 = e^z_2 log z_1
>  0^z is 1 if z = 0 and 0 otherwise.

Looks like a bug.  I think you can't really deduce what 0^0 should be,
so you must decide it.  Let's follow R5RS.