C extension=> pow(2, 1) gives DIFFERENT answers in different parts of C extension!?!?! Any ideas why?

[Paul Rubin]

seberino at spawar.navy.mil (Christian Seberino) writes:
> I put this print statement in various parts of my c extension...
> 
> printf("XXX %lf\n", pow(2,1));

Try pow(2.0, 1.0).